Cisco WAN :: 888-K9 CO And CPE SHDSL Connection Flapping Every Few Minutes
Jan 17, 2013
I have two Cisco 888-K9 setup on a 4 wire private line about 2-3 km apart one configurated as CO and the other as a CPE. During config and testing the SHDSL connection was completely stable although this was only over about 300m of CAT5e. Now the devices are installed the in field I'm finding the connection constantly comes up and down every minute or so which leads me to suspect noise or line quality is the issue. How to debug this and tweak the setting to improve stability? Config from the CO & CPE attached along with DSL controller output from active and non active connection on the CO.
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Apr 9, 2013
we are facing issue for unstability of EIGRP neighbor with ISP router.Both router are connected via 3750 switch.There is no misconfiguration or physical media issue.I found the SDM template on the middle switch is desktop default, does this will impact ? [code]
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Sep 23, 2012
I have a particular site that is causing me trouble, this site is connected in a back to back configuration using 2811 at CO and 2621XM at CPE. The CO end is also the CO for 3 other sites so has a total of 4 wics installed (WIC-1SHDSL-v2), these other sites also have 2621XMs for the CPE.
The problem i am getting is when one site in particular transfers large files to/from client machines, the CPU on the 2811 jumps to 99%:
CPU utilization for five seconds: 99%/98%; one minute: 26%;
PID Runtime(ms) Invoked uSecs 5Sec 1Min 5Min TTY Process
11 12881868 37249378 345 0.49% 0.50% 0.51% 0 ARP Input
54 8548592 30375358 281 0.40% 0.45% 0.41% 0 XDSL BACKGROUND
[Code]......
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Apr 10, 2013
I do have a question, is WIC-1SHDSL-V3 able to support ADSL line?
We have WIC-1SHDSL-V3 module used for SDSL line, due to few site need to bring up with ADSL line with 1841 model, but HWIC-1ADSL module already EOS. The replacement model EHWIC-VA-DSL-A is not compatible to 1841. My architect suggest Symmetric Module like WIC-1SHDSL-V3 could be able to tweak the config to support Asymmetric purpose. I did google but do not found such related topic. Can any expert on this area to advice me?
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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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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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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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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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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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Dec 16, 2012
So my internet connection keeps disconnecting every 5 or so minutes, then i reset the router and about an hour later it disconnects again. I'd say it would be a problem with the router, but everyone else's computers never disconnect, just mine. The only difference is that they all have macs and I have an Acer. I just got this computer and it was fine for about a month, but then about 2-3 weeks ago this started happening.
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Nov 3, 2011
I have a very well updated Laptop running XP well patched with IE7.I have run all the malware scans and there is nothing wrong on the PC.After exactly 10 minutes of the PC being on, wireless internet connection is lost, BUT:Signal Strength states "Excellent" I can't access any website at all on the web. (Except for "Facebook" for some odd reason?) I can't access it after the 10 minute mark but if I'm already on it, I can navigate thru it's site without being disconnected, don't ask me why I have tried the following:
- Dynamic and Static IP setting
- Turned on and off windows firewall and rebooted each time
- Ran all kinds of malware detection and virus scans
- Disabled power management on network card
- I've tried different PCs on the same network and they're fine
- Tried ipconfig release and renew
- Tried repair connection
- Tried netsh reset
- Tried FireFox and other browers
- Logging off and back in doesn't work, must restart the computer to get another 10 minutes
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Aug 11, 2011
My net connection is disconnecting every 30-45mins and this has been going on now for the past three weeks since I built my new PC.Here's what I've done to try to rectify this:
* Uninstalled/reinstalled Windows 7 (64-bit)
* Called ISP (AOL), whose first and second-line tech support ran tests and couldn't find any problems with the line.
* Changed the router (from a D-Link DSL2640-R to a Huawei EchoLife HG521 - both provided by ISP).
* Replaced the Ethernet cable that connects the router to my PC.
* Replaced the Rj11 cable that connects my router to the DSL filter.
* Replaced both DSL filters in my house (I have two phones at seperate locations in my house).
* Removed the bell wire from my telephone sockets. Whilst this didn't fix the disconection problem, it has increased my download speed from 130kbps to over 300kbps.
* Uninstalled the ethernet network adapter and then installed the most up-to-date network adapter driver available.
* Tried a couple of programs to optimize both my network and my PC to no avail.
* Changed my Anti-virus software from AVG to Avast, but again, there's no fix. [code]
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Jul 16, 2010
I have a DIR-615, hardware version: C1, firmware version 3.12NA and my issue is that it keeps dropping my VPN connection after 12 minutes. Sometimes it'll go longer than 12 minutes but on average right at 12 minutes of my connection, it drops. This happens whether I'm using the wireless or hard wired to the router. As a test, I ran a continuous ping on a computer on my internal network and also to a computer on my corporate network. When I'm VPN'd in, both pings are successful. Once the router kills my VPN session, the pings to my internal network are successful. So the router isn't rebooting or anything like that. My VPN session will automatically reconnect, but I'm stumped.
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Jan 3, 2013
So i setup an Asus RTN66U router with an HP 1800 24 port switch. Ive got 2 PC's,xbox,cablebox, and wii(wireless).about every 5 minutes or so, it seems I lose connection. Its very apparant when I play BF3 cause it will close the game and say connection with server timed out.My question is how should I troubleshoot this. How do i pinpoint router, switch, or modem or something im missing.
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Apr 28, 2013
I am using Cisco AnyConnect VPN Client v2.3.0254 and ever since i upgraded my laptop from the Lenovo T420 to the Lenovo T430 the time it takes to connect via VPN has increased drastically. Connecting via VPN on my Lenovo T420 would take as little as 5 seconds to authenticate and connect while connecting with my T430 is now taking at minimum of 5 minutes, sometimes upwards of 15 minutes only to report back an error!
The screen the AnyConnect VPN Client seems to hang on is "Establishing VPN - Initiating Connection..."
The server is enforcing that McAffee is installed and up to date, however i have already made sure that my McAffee install is valid and up to date.
I have already taken these steps to try to correct the issue: Re installed Cisco AnyConnect VPN ClientRe installed & updated virus definitions for McAffeeRan CheckDisk on my primary OS partitionRan RAM validation utility to verify no bad sectors I have attached a screenshot of the error log from AnyConnect as well as the log html file.
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Oct 30, 2011
Some of my Lightweight Access Points lose connection every 10 minutes now, it worked without problems before.
I'm using an AIR-CT5508-K9 Controller with Version 7.0.116.0 and AP are all AIR-LAP1242AG-E-K9.
In the log I find informations about my node changing his parent and then reseting the radio interface.
I checked my configuration, but perhaps I missed something.
7Mon Oct 31 14:35:11 2011AP's Interface:0(802.11b) Operation State Up: Base Radio MAC:00:3a:99:90:55:c0 Cause=Radio interface reset. Status:NA8Mon Oct 31 14:35:11 2011AP's Interface:0(802.11b) Operation State Down: Base Radio
[Code]......
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Feb 18, 2011
We recently moved in with some family, and we brought with us a Belkin N wireless Router. I set it up to their existing internet modem (I'm not sure what type it is or anything, I just know that the ISP is Optus) about halfway through January.
It's been working fine until Friday. Since setting it up, both my brother and I have (at different times) been playing Star Wars Battlefront II online. On Thursday night I was playing online fine, with no lag or anything (with a ping of about 138), however, ever since Friday it has been lagging non-stop. I have the same ping so I thought it must have been because we've gone over the limit for the month and the internet slows down.
However, every few mintutes (1 or 2 normally) the connection between my laptop and the network drops, and then within another few minutes connects again. I am running Windows Vista Business. My brothers laptop has the same problem, and he has Vista Home installed.
At first I thought it was a problem with the router, so I updated the firmware and restored the factory defaults, but the problem remains. When I get onto a website (if I'm lucky enough for the connection to stay) it normally loads pretty fast, so I dunno if we've gone over the limit or not (and I don't know the password to check).
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Sep 20, 2011
The wireless connection works perfectly fine nearly all the time - connection strength always says excellent. A couple of times a day, I'm in the middle of doing something online and find I've suddenly lost wireless connection. A couple of seconds later this is reflected in the network connection icon in the taskbar. A couple of seconds after that, I'm connected again. Several seconds later, it's off, then on, then off, then on.. until a few minutes has elapsed, when suddenly everything is back to normal and I have a solid connection again.I'm literally disconnected for a couple of seconds at a time, over a period of a few minutes, but enough for anything I'm working on (loading a page, downloading or uploading something) to cut out. And for a large majority of the day, it is perfectly stable.
The router is not losing connection to the internet (have checked the logs, and when it happens I normally plug in with a cable and have no problems). I've yet to be able to test whether the same thing happens to another computer connected to the same router at the same time. Our microwave used to interfere with wireless but it isn't being used here, unless it is a neighbour's - though that would cause things to slow down / hang for a little while, rather than flick on and off in such a predictable pattern.(Have also scanned for driver updates, but it says I have the latest version - Intel(R) WiFi Link 5100 AGN, 12.0.0.82).
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May 7, 2011
I just have recently been experiencing some dropping off the internet.. My phone company has been out here and has done tests, and changed out my wireless modem with a new one, switched me to a new high speed port.. cleaned up the cables outside my house.. installed a new jack.. and we have yet to solve this intermittent dropping and reconnecting... I am starting to wonder, if not anything else with my outside line.. is there something else causing the problem. I switched my channel from 11 to 9.. *my neighbor is on channel 11* thought maybe his was interfering with mine .I am using WPA, I have disabled the power adapter from "saving power" in the adapter settings..
When the internet does drop off the DSL light on the modem goes out, and then comes back on..its not blinking off and on, just off.. then waits.. then reconnects to the net, it's almost like it's refreshing or something every couple of minutes.The modem is a Siemens Speedstream 6520
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Nov 12, 2012
im loosing connection every few minutes , tried ipconfig /release , ipconfig /renew and im getting this error every time : An error occurred while renewing interface Local Area Connection : unable to contact your DHCP server. Request has timed out. After typing ipconfig /all DHCP address is 255.255.255.255 and this IP 192.168.100.10. Tried other things like flushdns / netsh commands and nothing want to work. My connection works only after i restart my modem. Modem type Ubee 3236. The modem is new got it 4 days ago. And also why i cant access the modem configuration page by typing my default gateway in browser ?
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Feb 22, 2013
So, I'm connected to my router through wifi on my laptop and every 5-10 minutes I disconnect from my internet and I can't reconnect right away. I have to wait another 5-10 minutes for it to connect back. And I also can't connect the first time I start up my laptop. I need to wait 5 minutes before I can connect.
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Feb 9, 2012
I have a Dell Latitude D630 that connects to the wireless network but goes off after 10 to 15 minutes. I have to restart the notebook for the wireless to pick up again.
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Dec 28, 2012
when im on my laptop and im on the internet,the connection goes from normal to Limited (yellow triangle caution sign by connection),non of the pages will load after that,i use diagnostics repair to fix the problem which works about 40% of the time,but is only temporary again.give it 5 minutes after the fix it happens again,diagnostics say the problem is with the wireless adapter card which is built into the laptop itself.i do and dont think this may be the cause since everything house loads perfectly fine but can have the occasional drop out aswell,on average i'd say it drops out about 10 times a day and i find it kind of frustrating.My Laptop is a Acer Aspire v3-531.My internet is with Virgin Media and i get around 60 MBps with them but the disconnections drop it to about 7mbps and keeps going down till the connection is actually gone.
P.S:The intel Proset wireless framework on this computer fails the hardware test straight saying the wirless hardware is not bound to the transport driver? what do i do?
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