Periodic 30 Minutes Connection Loss
Jul 27, 2012
For the past day or so I have been having problems with my internet connection to my PC. It has been working fine for a few hours, then it suddenly goes down for up to 30 minutes, with sporadic (lasting about 30 seconds) reconnection during that 30 minute period.I am pretty certain this is a computer related issue (as opposed to a problem with the modem), as none of the other computers in the household. (Ihave been affected, and neither has the wifi (I have browsed on my phone while the internet on my computer was down, in fact am currently writing this post on the wifi while my computer has no access)My computers specs (Taken from the sys info program when I regained connection for a short while) [code] Steps I have already taken in an attempt to solve this problem
1. Reset modem (turned it off and back on again)
2. Ran most of a virus scan in both macafee and avg (they both got to about 85% and by that point were just scanning steam stuff
3. Talked to a verizon tech, confirmed it is most likely not a modem problem (he didnt know what the problem was however)
4. Changed out the ethernet cable, the new one works no better than the original
Additional note: Earlier today (after these problems had begun) I was downloading the latest version of hamachi from a site soft32.com when I recieved a trojan warning from macafee. I immediatly stopped the download, restarted my computer and began scanning with both AVG and Macafee, neither found anything of note (AVG found something it labeled a hidden directly, I looked it up and it seems harmless)
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Jun 27, 2011
Hardware: DIR-615 @ 3.11NA firmware
Wired:
PC windows 7
PS3
Wireless:
1 DELL windows 7
2 HP windows 7 (HPa and HPb)
3 smartphones
Description:Everything wired always works, the dell wireless always works and HPa always works along with all of the cell phones. HPb will connect to the router always, as in it see's the router and connects using AES security. For between 15-30 minutes everything will work correctly, transfer speeds are fast and everything is working. For no reason the laptop will lose "Internet connection" only, NOT the connection to the router. But all of the over devices continue to work correctly, so i know the router has internet connected.i would have to disconnect from the router and reconnect and that gives me another 15-30 minutes of connection. I have checked a load of stuff, but i cannot figure it out. Here is a netBIOS
C:UsersCat>NBTSTAT -n
Local Area Connection:
Node IpAddress: [0.0.0.0] Scope Id: []
No names in cache
Wireless Network Connection:
Node IpAddress: [192.168.0.15] Scope Id: []
[code]....
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Jan 20, 2013
After connecting to the internet on my laptop, the internet connection will work great for 10 minutes or less than it slows down drastically or essentially not working at all. If I disconnect and reconnect it will work again but just for a short amount of time. The wireless connection works great on iPod, IPhone, and tablet. Downloaded Kaspersky Antivirus which said it fixed some viruses but internet got worse after that. Tried restoring the computer to factory settings and the internet stays connected for what seem a few minutes longer.
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Jan 26, 2011
I support a small business with 6 computers(XP) wired networked to a Cisco router and connected to an ADSL WAN. For over a year now they have experienced an overnight loss of Internet connectivity requiring the router to be rebooted almost every morning. We thought it was a fault router so we replaced this with a good Cisco router, but the problem persisted. We got Cisco involved and they monitored it without finding fault, but they replaced it anyway. We also replaced our ISP but all without avail. I use a combination of pc.Any where and Log mein to support them over the web. The strange thing is that I am always able to connect to their system, but when the fault is apparent, I can't get web access to their router internally or externally and they can't get Internet or e-mail access. The router is my DHCP server and each PC is DHCP mapped in it. Cisco have looked at all the settings of the router and they say they are good.
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Jan 26, 2013
What is the cause of periodic disconnections? I don't know what kind of information I'm supposed to give, but I can say that the internet disconnects randomly but connects again.
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Oct 25, 2011
While I am connected to the internet, whether surfing the web or playing a game, I randomly get disconnected with a "No Network Connection" error on the network access icon on my toolbar. However, other computers that are networked (both wireless and wired) do not receive a disturbance in the connection. When I refresh or look for a new connection, I continue to get the same error and the troubleshooting tools fails to find a fix. The only way this seems to fix is rebooting the computer. Sometimes it happens multiple times in a row, but consistently happens between 1-2 times a day.I don't know if this is a coincidence or not, but it seems to happen when I'm doing stuff that could "stress" the connection, like downloading something or running a game while also browsing the web[CODE]
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May 12, 2012
While playing the online game League of legends i suddenly lost internet connection. when loading pages some will not connect and I'll get a message saying I'm not connected and should try reloading, refreshing the page usually fixes the problem, occasionally multiple refreshes are necessary. I've never had this problem before and it's rather inconvenient for me as I need internet access for university.
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Nov 22, 2011
I keep losing connections to the internet and getting a couple of different messages that the Gateway IP address is invalid. There are times it happens every few minutes and other times I can go for a couple of days without it. Also, we have to have satellite internet which has such an inconsistent speed. Is it the internet speed inconsistency or the 4 year old Belkin N Router?OK, so I tried to copy the information from the CMD window, but I can't get it to work. After I got the information and right clicked and clicked "select all" then what. I couldn't copy it. I can't find my way back to the instructions.
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Mar 2, 2011
There are times the Nexus CPU goes high around 70% but its not a constant occurance. Is there something to worry. Quite hard to find out which process caused it as it happens very brief. [code]
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May 22, 2011
One of my client useing 2960 switch but now face a problen after periodic time power off automaticaly. sometime cooling fan only run. Power of after 10 min or 3/4 hours and after power off it can get any power again. after 10/15 hours when power on then its works again but some times. whats is the problem hardware or software.
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Feb 21, 2012
I have lately been having trouble with the speed of my wireless connection. usually downloads can run at approx max 1.2MB/S i have noticed significant speed drops in my downloads - when i connect to the network it starts off at 130mpbs, but then quicky drops to 12mbps - no settings have been changed recently.
Windows XP
LinkSYS Wireless N Router E1000
Netgear Wireless Repeater
Signal Strength on Repeater is indicated as strong
Signal Strength on Laptop is indicated as Excellent
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Jul 17, 2012
I've been having a problem for a while now wherein my internet connection seems to randomly drop for anywhere from ten seconds to a minute, then come back online. It's been doing this over the lifespan of one router, and continued into the life of this new one I have, which is a WNDR3700v3 Netgear.
I called my ISP and they fiddled around with things on my computer, but the issue is still going on. Rather than slog through another three hours with them, does anyone here have any tips for what I might look into for the cause?
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Apr 21, 2013
My problem is that i have a packet loss of like 2% to 6%, which is a lot considering that i play a lot of Online games, causing lag spikes and net frozes.I will say all the information i can about my pc.My PC hardware hasn't been modified, so the manufactor page ( ) tells what is installed in my pc.About software, i need to find if this problem is software-based, my AV is Microsoft Security Essentials and i use MalwareBytes too.About how im connected, im connected via Wireless to a router. (dunno model, i just know its a encore router)
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May 20, 2012
I have cisco 1310 bridge with IOS version Version 12.3(7)JA5. Sometimes bridges are disconnecting by showing the following error message.
*Mar 1 01:22:21.856: %DOT11-6-DISASSOC: Interface Dot11Radio0, Deauthenticating Station 003a.99eb.cc00 Reason: Previous authentication no longer valid
*Mar 1 01:22:22.115: %DOT11-4-MAXRETRIES: Packet to client 003a.99eb.cc00 reached max retries, removing the client
[Code]....
Once it is deassossiated, ihave to manually restart the bridges. How can avoid manual restarting so it would automatically associate after some time.
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Mar 20, 2011
I am running a Linksys WRT54G wireless router but have my primary computer hard wired to it while my laptop connects wirelessly. In both cases, when I ping my IP's speed test site, I get a solid ping rate of approximately 17-20ms but i also get about 5% failed: timeout's. Now I've seen posts here that suggest wireless interference could be an issue but since my desktop is hardwired into the router, that source would seem to have been eliminated. When I connect my desktop direct to the cable modem the problem doesn't occur.
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Mar 10, 2011
Periodic Slow Response 2821 (300+ms, 1 minute) My solarwinds NPM reports very slow response times from my satellite clinic.Often times it is 300ms to 600ms when it should be 10-15ms. CPU does not seems to spike, the memmory does not seem to spike The bandwidth does not spike.It happens mostly during work hours about 10 times a day Solarwinds reports the delay and then 2 minutes later it reports normal activity
I have broadcast/multicast control on the switches? We have static route for our network meaning no routing protocols ?We have 12 other clinics with the same configs and they are fine?I have double checked the configs but I am not holding my breath on that item?I have rebooted the router without affect
I have not replaced the cable to the demarc on either side of the WAN connection?I have not reseated the service provider T1 cards?I have not reseated the T1 card on either router.
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Sep 24, 2011
What could b the issue with my internet connection i keep losing the connection every few minutes if im idol on sites not games related i stay connected when i go onto games i start losing the connection. [code]
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May 1, 2012
For the past 2 weeks i have been losing internet connection on my pc, ps3, laptops and phones every 15min and i have no clue what to do. It has never done anything like this.
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Sep 5, 2012
My internet connection will cut out every 5-10 minutes. Sometimes it will stay on but MOST of the time it cuts out every 5-10 min. other times my ping will jump to over 2000 or stay around 200 for no reason. It has gotten to the point of where I can not play any online games anymore, and there is no possibility of a wired connection.6-8 months ago we has slow internet speed and Comcast told us it was not their fault it was our router, and that routers go bad every year or 2, so we got a new one. My connections to the old router used to be 3-4 bars and with the new one it is 1-2. Ok so the big issues was it started getting bad where my connection would randomly cut out. I thought it was my wireless network adapter because it was old. I was constantly unplugging it and plugging it back in or releasing and renewing my ip every 5-10 minutes sometimes more often. Let me define cutting out, sometimes it would be everything, but most times it would be just one application like website or just the game I was playing but not steam chat.
So I got a new wireless adapter and we hooked back up the old router to find out Comcast had lied to us and our speed was fine on the old router ... in fact out connection was better. but still the problem remains.. random cutting out of internet completely and random huge lag spikes.... it is less frequent but still every 10-20 min something goes wrong. I have tried changing the routers channel, updating both routers. I tried setting myself up a static ip but it would not give me internet connection if I did... idk if i had the DNS wrong or something. Anyways I am at my wits end and about damn ready to try ANYTHING to make this work again. It did before so I know it can work! I will try anything and post any reportsSometimes I might be slow to respond because I have to try things out for a little bit to see if they worked.
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Apr 22, 2011
My internet connection has suddenly turned really slow and pingtest.net tells me I have severe packet loss, which makes sense as nothing will stream or load properly. I'm running Mozilla Firefox (newest version) and have tried all the usual diagnostics and resetting everything?
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Oct 31, 2012
My Linksys E3200 has no wireless access to the internet. Wireless devices show they are connecting to the router, but cannot access the internet.
The router had worked fine until suddenly no internet access. Mac network diagnostics show that the connections are correct until the ISP and Internet which show either yellow or red.
The router's homepage shows no changes in configuration. Ethernet connection works fine.
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Sep 21, 2012
Yesterday (Friday, September 21, 2012), my Internet connection started acting up. After some testing, I confirmed a very specific and baffling set of symptoms: Internet connection goes away every 25-35 minutes (I did not confirm the exact interval, but it seems to be about 30 mins.)Only some protocols are affected; HTTP*, P2P, etc. stop working; FTP, etc. continue to work When it’s stopped, cannot even ping router or cable-modem IPs or view their firmware pages Domain-names and IPs are irrelevant (for protocols that stop working, neither work, for those that still work, both work)Resetting router fixes it for another 30 minutes Keeping the connection idle or active doesn’t seem to make a difference (nor the bandwidth usage in that period)Connecting directly to cable-modem allows it to work indefinitely Disconnecting the router from the cable-modem works indefinitely (no Internet connection obviously, but can still access router IP and firmware page)Connecting the router to the cable-modem, but putting the modem on standby also works indefinitelySame problem with both a wireless laptop and wired (on any port) desktop (both Windows 7; will try to test Windows XP when possible)Nothing had changed in the days leading up to the issue. No modifications to the networking configuration or the router; there were not even any Windows updates except for an MSSE definition update.Waiting does not fix it, nor does any amount of fiddling with anything; only resetting the router fixes it for 30 minutes (resetting the cable-modem doesn't work either)if I keep pressing the standby button on the cablemodem after browsing some pages, the connection works indefinitely (If I press the button to restore the connection, browse some pages, press the button again to cut the connection, it works fine for hours and hours without issue. Only when I leave it active for a while does it finally stop. I repeated this for three days with the same results.)I tried cleaning the pins in the router’s plugs, but that didn’t work, which was not really a surprise since I was not getting a lost connection error.
Obviously my first thought was that the router was having a problem, and this is borne out by some tests. The problem is that when it drops, it is not a full drop since I can still do things like ftp ftp.mcafee.com and such which means that the connection and DNS are still working. Moreover, if it were the router, then why does it stay alive indefinitely when not connected to the cable-modem (i.e., no outside influence)?
The problem doesn't seem to be either the cable-modem nor the router, but rather an interaction between the two, like something from the outside (port scan? hacker? ISP?) that is triggering a problem in the router. I see that there have been a couple of vulnerabilities for the DI-524, but those were a while back and should be fixed since I have the last firmware for it.
I don’t think it’s my ISP (Rogers) since I have been using the router for several years without problem and can connect indefinitely when bypassing it. But I can’t rule them out since that is one of the only possible things that could have suddenly changed.
(I note that when I opened the router, I heard a very high-pitched noise from somewhere near the capacitors/ferrite ring which I don’t think I heard the last time I opened it a few years ago, but then if it were that, then why would it affect only a very small, specific set of functions?)
Update:Last week, my Internet connection dropped out for two days. I called the ISP and they had me bring the cable-modem in to be replaced. I exchanged the SB5100 for a new cable-modem that has a built-in router with wireless AP and firewall. (I left it in gateway mode instead of bridge mode.)This morning it started behaving just like the old router. Most protocols continued to work (mail, P2P, NTP, etc.) but web-browsing (HTTP) was dead; I could not even connect to the cable-router’s web-interface. I rebooted the cable-router and HTTP functionality was restored; exactly like the previous router.
I find it highly unlikely that this could be a coincidence or related to the router itself since the new one is literally brand-spanking-new (bagged, twist-ties, in a box, with that new-plastic smell, etc.), and completely different from the old one (the new one is an ISP-branded model labeled “Hitron” while the old one was a D-Link DI-524).
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Jun 7, 2012
I have a problem with a 9 3750 switch stack. If you take a look at the show proc cpu history command , the following is seen:
1291999691191111911110111991117911119111191111911119111931
8994899595719876945570744993236132549385494445924169433963
100 * *** * * * ** * * * * *
90 * *** * * * * ** * * * * * *
[Code].....
Is it maybe a normal background proccess that runs in all the switches but , for some kind of reason, is not working properly?
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Feb 5, 2012
I have a problem with my wireless connection. I recently installed Windows 7 Ultimate 32bit OS and bought a new NETGEAR genie router WNR2200. I am experiencing lag spikes in 1-2 second duration while playing games. These lag spikes freeze the game and send my ping sky high (ping 999ms). While browsing the interwebz I don't really notice the lag spikes because they are only a few seconds long.Changes I have made (PC):
Disabled Client for Microsoft Networks
Disabled ANOD Network Security Filter driver
Disabled QoS Packet Scheduler
Disabled File and Printer Sharing for Microsoft Networks
[code]....
Mode: Up to 300MbpsAfter all these changes and tweaks I still get the exact same problem I started out with. The above changes were recommended by users of random forums to fix wireless lag spikes. Using a cat5 cable is not preferred (and perhaps not possible) as I am renting from random people and the router is on the other side of the house.
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Jul 10, 2012
I have brought a broadband connection from a local ISP called YouBroadband. (I am from India, if you are wondering.) For the first month of my plan, I was having internet connection without any issues. But since 2nd month, I am experiencing a very strange problem. When I turn on my PC and connect to internet by entering my password, I do so without any problem. But after a few mnutes of connectivity, I loose my connection. Even stranger is the fact my Windows 7 Ultimate edition does not recognise this. It still shows connected sign in the notification area. But I am not able browse any more using any browser. to solve the problem, I start network troubleshooting, which in a few seconds shows, resetting 'Local Area Connection 2' and then I am able to log in again. At times this solution also doesn't work. All i can do at that time is shut down my PC, wait a few minutes and restart again. To my extreme dismay, this keeps happening over and over again. I connect, get disconnected, reconnect and again disconnect. This is terribly disturbing and annoying.
I have searched on Google with no success. I tried changing DNS server settings and put Google open DNS address as my preferred DNS server but that didn't solve the problem too.( I received this tip from a friend of mine.) Here's what I get when I type ipconfig/all in Command prompt-Windows IP Configuration[CODE]
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Sep 24, 2012
I am on a home LAN with a high speed broadband connection, Apple TimeCapsule router, and Windows 7 laptop. Starting this morning every 1-2 minutes my Internet connection stops working. I can not load webpages, send email, etc. A yellow triangle with an exclamation point appears over the WiFi icon on the taskbar. When my Internet connection stops I can disconnect from the wireless then reconnect. That will work for another 1-2 minutes only.
I do not recall doing anything that could have caused this (obviously something caused it, but I have not been screwing with drivers or anything and it has worked fine since I bought this computer 2 months ago from Dell). I have read several threads from where people had this problem in the past, but to no avail. For instance some people had multiple firewalls in conflict with one another or needed to renew their DHCP lease, but that is not true in my case.
Here are steps that I have taken to repair the problem, but with no luck:
- Restart the computer fully, many times
- Renew the DHCP lease
- Run the troubleshooter
- Changed my DNS servers from the ISP's to Google's
- Uninstalled all OpenVPN software
- Removed the stored WiFi network data from Windows then reconnect
- Verified that only 1 firewall is installed
- Tried it with the ethernet, which works
- Tried other computers on the WLAN, which works
- Ran anti-virus and anti-malware scans (no infection)
I do have a VirtualBox installation, but I have not run it in weeks. Even when I was connected for that 1-2 minute period I was unable to connect to my work OpenVPN, which is what led me to try uninstalling the VPN software, but that doesn't seem to be related.
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Apr 3, 2013
I turn my laptop on, start browsing in the internet, etc. A few minutes later I can't do anything. Pages won't load, skype stops working. So I go to Wireless Connections, disconnect from the channel and connect again. After that the internet is back and working fine. Same thing happens a few minutes later. I'm assuming that the problem's with my laptop, because phone still has internet connection and before my desktop PC broke it was working OK (with wired connection). My wireless card (not sure how it's called) is Intel Centrino Wireless-N 2230.
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Apr 17, 2012
I have a Talk Talk Unlimited Internet connection in the UK.The modem they provided is D-link DSL 2780 N type ADSL+2 router.The wireless net connection is shared by 5 other people in my flat and as far as I am aware - their connections seem to be seamless..In my case - the speed of the wireless connection starts deteriorating after about 20 mins - i.e the pages start loading slower, and then a while later the pages don't load at all - but the signal strength and connection would be displayed as normal..When I try to disconnect and reconnect- Windows says it's unable to connect to the router..It runs some diagnostics and advices me to turn the router off and then on
[code]....
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Feb 14, 2013
We have a newer linksys router supporting 4 laptops, 2 desktops, 3 iphones, an ipad, an apple tv (also a smart tv, two wifi blu-ray players, but I'm less concerned about those devices). Everything is relatively new (1-2 years old). Most everything is turned on during the day but only a few things may be in use at a time.Many of my devices are loosing connection multiple times per day, my ipad is losing connection every 15 minutes, my apple tv takes a lot of finagling to connect (my level of tech expertise is basically me power cycling everything and prayer). Once my laptops get online, they tend to stick. It seems my apple devices lose signal more frequently.I've updated the firmware on the router and played with wideband settings and channel selection and haven't noticed much difference. I do see a lot of other wifi signals around me. The constant disconnecting has been going on for a couple of months. We have Comcast/Xfinity as our cable provider on 20/MB internet.
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Jan 15, 2011
Just starting a couple of days ago my internet started dropping about every 10-20 minutes. The problem is only with this computer. I have a laptop right next to me and it works fine no problem and two other PCs that don't have any issues so I don't think it is the router. I have scanned my computer with different antivirus software and it's clean. The computer is always connected with a full 5 bars and says it has internet access but sometimes it drops and in order to get it up and running again I unplug the wireless adapter and plug it in again. At first I thought it might have been the adapter so I swapped it out for a new one and I'm still having the same problems. My wireless is unencrypted. This keeps happening over and over again and I am stumped on what to do.
equipment: WRT54G linksys router
belkin surf and share n300 adapter
linksys ae1000 adapter
windows 7
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Aug 27, 2011
Every time I boot my computer, the internet is working fine and shows no signs of anything wrong, but after loading so much (several minutes of a YouTube video, or just idle data coming in from other sites I'm on) it just comes to a halt and nothing can get through. At first, I thought that this was my school's internet being bad since I had just moved back into the dorms today. The problem with that is that I seem to be the only one having a problem like this. After so much time, depending on how much bandwidth I'm using (I think, this is just based on observation), it just drops the internet completely and won't start again until I reboot.What I've found so far is that I can't seem to get an IP address after the service stops, but I don't know how I could connect that to anything.
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Jan 13, 2013
I recently reinstalled windows so as my pc was on service (one of rams was gone down) , but it is not the issue. My network connection is delayed, sometimes 5 minutes, this time 15.I found 2 types of errors in event log, I will add them at end of post .
So the problem - my computer acces network really slow. I am musing Modem what is connected with PC by my Ethernet cable and on pc I am using Local Area connection.Computer simply say that cable is unplugged while it is pluged in ( It works perfect with same modem and cable onmy laptop, I even tried different cable - no refult).Icon all the time have red cross, sometimes disabling/enabling network adapter fixes i, but nit today, then after some time it turns on in normal speed - several seconds blue circle spinning around and then connects.
But there is huge delay.Usually if he turn in it stay like thus, but sometimes it disconnects after some time ( after hour, maybe less or more ).I recendly find out one more thing, if I have my net fully working on my laptop and I plug off cable from laptop and blug in into my stacionary PC it connects pretty fast, i may be nothing, but sometimes it is only way.When trying connect it drops these 2 errors, sometimes several times : The driver DriverRTL8167 failed to load for the device
PCIVEN_10EC&DEV_8168&SUBSYS_E0001458&REV_014&39aeacf1&0&00E5.
Your computer was not assigned an address from the network (by the DHCP Server) for the Network Card with network address 0x001FD08E0204.
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Feb 23, 2011
I have a Dell Latitude d810 laptop that has XP Professional and an Intel PRO/Wireless 2200BG driver. It has been working fine for nearly 3 years. Recently I changed it from a domain to a workgroup and now the internet connection drops after about 5 - 10 minutes.When I say "drops", I am referring to the browser can no longer display the webpage. The internet connection still shows to be "Excellent". I even tried pinging www.google.com and it can still ping the website but the browser just stops working. I have tried Firefox and IE.I updated the DNS to use the default primary DNS suffix. The only way to get the browser to re-establish a connection is by rebooting the laptop.[CODE]
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