Internet From ISP Drops / LAN Stops Communicating With A Server?
Aug 27, 2012
I lost internet from the ISP and parts of our LAN went down.We were able to reproduce the error.Problem: Internet from ISP drops, program using port 10541 within the LAN stops communicating with a server.The computer and server are on the same switch, neither require access to the internet.How we fixed the problem, temporarily: Unplugged the power from the cable modem.How we reproduced the problem: Unscrewed the cable drop to the modem and powered it on.I have checked our firewalls logs and have seen nothing that stands out. I was able to ping the server from multiple computers, including the one that had the program running on it.Also while the internet was down, I tried removing the DNSs from the computer running the program, this made no difference.
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May 2, 2012
So this problem seemed to come out of nowhere, I have no idea why it started. Basically, when I use my internet, eg: opening link, loading video or downloading randomly my speakers make a grinding noise and until the noise stops (can be 1-10 seconds) my internet drops (the internet icon on the bottom right shows it is still connected but nothing loads until the noise stops. Even then, the noise can drop in and out like 10 times in a minute and is constantly messing up the internet.
my speakers are Logitech (doubt that makes much difference as I doubt the problem is linked to them and my LAN card is some Ralink thing, nothing special. Here is a low volume recording of the noise, turn up your speakers to hear it well.
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Dec 17, 2011
Attempting to configure Linksys e4200 router in WPA2 Enterprise mode. Got this setup fine when using the Linksys WRVS4400N (That is until it died on me, RIP circa 2 months ago). I’m getting nothing in the NPS logs, nothing when doing a PCAP at the radius server. It appears this router isn’t communicating to the NPS/Radius server.
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Aug 7, 2011
Recently i bought a Cisco RVS4000, upgraded the firmware to latest stable release (Firmware Version: V2.0.2.7) and started configuring it.Yesterday i found out that as the dsl connection drops (i'm using PPPoE with an ethernet ADSL Modem) the product stops logging, both locally and to an external configured syslog (which resides on a linux box over the LAN).
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Apr 2, 2011
I'm having an issue with a 2 week old WMP54G pci adapter. The behavior is as follows: I get a successful connection and excellent speeds, but every 10 seconds it stops transmitting and drops off the network for a moment. Then everything comes right back. 10 seconds on, drop, 10 seconds on, drop.I've investigated possible sources of interference, but there aren't any strong networks coming though on the same or nearby channels. Moreover, other devices sitting in essentially the same spot are connected consistently and show no variation in the signal strength.
Other info: OS is Ubuntu 10.10, the machine is a Dell GX270.
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Apr 27, 2011
My wireless router stopped working. When I plug directly into the modem the internet works finely.
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Mar 23, 2011
On Windows XP, my integrated NIC stops working after hosting a server. The server starts fine, ports are forwarded, firewall is down, modem is fine, but when I receive a connection, it shows they have made a connection, but then they drop, as do I. I can't browse or ping anywhere. I have to physically disconnect, then reconnect the ethernet cable to the port, or restart the computer. Upon ipconfig, the adapter is set with the Windows default ip (169.x.x.x) and cannot be /release'd or /renew'd.
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Nov 2, 2012
We have a 887VA and a dns/web/mail/ftp server behind (below address 192.168.99.100).
first problem I forwarded the necessary ports to the server address, but now the domain became invisible and all the above servers stops to respond.
second problem whenconfiguring a fixed ip addres on a PC with GW and DNS server the 887VA address no internet connection possible, but when put instead the route address in the dns the ISP dns address internet comes back.
Put this server on DMZ, so all services will be available from the outside? forth how to connect the route remotely (with putty)
This site is my only hope to succeed one day to manage this "black" box successfully. Below the running conf
! No configuration change since last restart
version 15.1
no service pad
[Code].....
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Feb 8, 2012
I've got a DIR-825 RevB Firmware V2.06NA on a static IP wan connection routing to a SBS2008 server and 10PC's. The server is serving mail, web, and files. Router has virtual servers setup for http, https, smtp, imap, imapssl, smtpssl, pptp, remote desktop, and a few others.
Everything works fine, but the routers https forwarding stops running periodically about half an hour after reboot. The server's working fine, but it doesn't see the https request, it looks like the router is trying to serve the 443 request itself. After a router reboot everything is back to normal.
I've replaced the router with another dir-825 and it has the same issue.
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Feb 20, 2013
I have a asa 5510 vpn client groups configured and connected to the internal network DHCP server stops giving network service dhcp and the network goes down.
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Oct 6, 2011
I have a sg300-52 in layer 3 mode. I have 2 Dell access switches that connect to the sg300 in 4 port LAGs each. Connectivity works as expected.Servers are on their own VLAN, and plugged directly into the sg300. When somebody starts a file copy from their client workstation off a file server, the server VLAN drops everything except for the file copy. Even drops packets on its own vlan, (server to server communication) until the file copy is complete. Seems like the VLAN is rate limited somehow.
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Aug 28, 2011
I can connect to the internet via wireless just fine, and everything will be hunky-dory for a while. After a while, however (this varies anywhere from a day to a week), there will be a small hiccup on the connection, and then something fails in the Acquiring Network Address stage. My computers will get an IP, but they will not get the default gateway or DNS server.I have tried a plethora of fixes, from simple computer reboots to fiddling with all sorts of settings, and nothing works to reestablish the connection. My father has also tried fixing it, to no avail. I have to go and reset my router, which also interrupts TV service, because it is through AT&T U-Verse. Needless to say, this does not make other people in the household very happy, and I really shouldn't have to be resetting my router every couple of days like that. My PC uses a Netgear WG111v3 adapter and is Windows XP. My laptop has on-board Wifi and is Windows XP Professional.
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Jun 25, 2012
Whenever I try to download anything with my computer, my Internet stops working and I must restart my computer in order to get it back. This only happens with my computer, since others in the house dont have the same issue.As strange as it may seem, this doesnt happen with Bittorrent. Only with regular downloads.
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Sep 16, 2011
My internet stops approx in 10 min fo start of pc to an hour at times.Am not able to connect to router too.I have a wireless router and the PC is connected with a wire.The internet is not at fault as I can use the router @ laptop.Was on windows 7 Ultimate and all was working finer till 2 days ago. I thought May be I shoudl do a reinstall and installed my old and trusted win xp.Still its here. The win xp is completely updated and up to mark. I cannot even connect to the router 192 address when the internet stops.I have already changed dns to open dns. I remember that in windows 7 it used to show some dns /ip error , when I woudl trouble shoot at times and thus using open dns on router. Nothing working, and am going mad[CODE]
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Mar 4, 2012
It's fairly hard to explain what happens but basically, say I'm playing some type of online game, all of a sudden anything server sided such as HP amounts, damage amounts, etc. just disappears but the animation runs fine such as attacking being hit, etc. All of a sudden it'll jump forwards and I'll take any damage and do any damage that had been happening until the issue started. This happens constantly and it's really frustrating but on top of that my internet will slow to a crawl..Say I'm trying to send a message on Skype, it won't send for the longest time and I won't be able to recieve any or even open a new webpage until the problem fixes itself.'ve looked around a bit and thought I fixed the issue, I'm on wifi and multiple devices are connected but not always in use, and the forum I found suggested an ip conflict and said to open up command prompt release the ip with ipconfig /release and then renew it with ipconfig /renew.
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Feb 11, 2012
My DIR-601 stops connecting to the internet so I have to power cycle the router daily, the 2.00 FW is not posted on the DLink Website. I don't have this problem with my Linksys router. E-mailing DLink doesn't facilitate since they tell me to call, and I don't want to sit through menus and scripts. Hardware rev is B1. Connection fails on both wired and wireless.Also, as a side item, D-Link should ignore MAC filter for wired connections.
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May 2, 2011
After buying a new WNDR370. Sporadically and seemingly without any cause my internet will stop working. Diagnostic will always report it as "DNS Server is not responding." I've also discovered that if I enter my router settings and even just switch the DNS settings from Auto to manual or vice versa the problem corrects itself instantly-then next time it happens I just need to do it again.
I've already tried resetting my entire network and rebuilding the recommended way. Modem, Router, then computers-connecting each only after the prior has finished initializing. Hasn't worked though.
Currently I have my main rig connected directly to the modem to try and find out if I experience the problem at all this way, this is a pain in the ass though, and I don't know when long enough is long enough as the issue is completely random and simply just may not happen.
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Oct 22, 2011
what is the practical result ? Can it be fixed ?
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Feb 10, 2013
My computer runs bit torrent almost all the time, sometimes when I start Firefox the home page google never loads and neither do any other web pages yet bit torrent is still working as if nothing has changed. If I start a download in Firefox come back to the pc a few hours later Google doesn't load but the Firefox download still continues.What causes this is it DNS ?
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Mar 11, 2011
My internet (wired and wireless) usually works fine, but occasionally (read: every few days to weeks) the connection will suddenly black out for a period of time, anywhere from an hour to a day. I have tried resetting both my router and modem, and going through all the settings on my laptop, but I'm pretty sure it's not my computer, as no other devices can connect either. During the blackouts, when I look at the modem, the internet light will turn on for a second, then go off and then the red "alarm" light (aka "something is wrong" light) starts blinking like crazy, and this keeps repeating. This resolves itself after anywhere from a few hours to a whole day and everything is normal again. The light show, and the fact that I can't find any other problems, leads me to believe that it could be a problem with my provider (or the network itself) and not a hardware or software problem, but I can't be sure of this.Also, during the blackouts, I can connect to the network, but it shows that limited connectivity symbol (exclamation mark thing) and says no internet.
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Aug 24, 2012
Internet works fine for a few minutes(around 2-5 usually), then it completely stops. It doesn't say it was disconnected, it just stops.Wireless has been working just fine the past few days.) We have used a desktop computer with this type of setup before and it worked just fine, that desktop was like a 2001 Dell that could barely stay on.
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Mar 2, 2011
Internal network (LAN) works OK rock solid; only internet drops intermittently windows xp sp3 with latest updates wired connection
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May 3, 2011
I think the built-in wi-fi of my laptop was destroyed so I connected a usb device that enables me to use wi-fi. Now, I tried to use internet, I was connected however connection was slow plus after a few minutes when I open another window it won't just connect. The window shows a blank page and on the tab it says untitled. I don't know what's the problem and what should I do to fix it.
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Jun 17, 2012
Tech Support Guy System Info Utility version 1.0.0.2
OS Version: Microsoft� Windows Vista� Home Premium, Service Pack 2, 32 bit
Processor: AMD Athlon(tm) Processor LE-1660, x64 Family 15 Model 127 Stepping 2
Processor Count: 1
RAM: 2045 Mb
Graphics Card: NVIDIA GeForce G210, 512 Mb
Hard Drives: C: Total - 292284 MB, Free - 43340 MB; D: Total - 12958 MB, Free - 1819 MB;
Motherboard: PEGATRON CORPORATION, NARRA5
Antivirus: AVG Internet Security 2012, Updated and Enabled
So here's my setup:Computer A is connected directly to a cable modem box via USB. Computer B (which is sometimes a laptop and sometimes a desktop) is connected to Computer A and shares its internet connection via Ethernet because I am too cheap to buy a router.A few days ago we borrowed a Belkin wireless router so we could have both desktops, the laptop, and my fiance's iPod Touch access the internet at the same time. That worked fine but once we returned the router and tried to put everything back to normal, it didn't work. The only computer able to access the internet is Computer A (or whichever one is directly connected).I tried resetting the modem and restarting both machines. I tried disabling all of the connections that showed up from using the router.Windows states that the IP isn't properly configured or something of that nature. I tried setting it to automatically set the IP but to no avail.Here is the part that really confuses me - I can access Computer B from Computer A via LAN using the ethernet cable, so the connection between the two computers is fine.
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Nov 10, 2012
I have a windows vista pc networked to a second pc. I have wirelessly networked internet to 2 laptops. I have an actiontec wireless modem by verizon. All of a sudden my host pc started randomly losing internet connection, but the wireless laptops still have a signal. It seems like the host sometimes can't "see" the modem.Here are my settings while the internet is functioning.Microsoft Windows [Version 6.0.6001]Copyright (c) 2006 Microsoft Corporation. All rights reserved.[CODE]
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Mar 10, 2012
I bought this router and ever since my internet connection will drop out for 5 minutes at a time then come back in. This happens on both wifi and the wired connection. The weird part about it is that if there is a program that maintains a constant connection, e.g. xbox live or an online MMO, they don't lose connection when every other device or even tabs within the same browser all lose connection.
BTW It's the REV_B with the 2.07 firmware.
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Apr 22, 2013
Writing my first router config from scratch for an 1801. I have wireless devices able to connect & authenticate with WPA. Wired devices can talk with wireless devices & on both interfaces devices obtain a DHCP lease. I can ping web based resources from the FA0 interface; the problem is, LAN devices can't ping has FA0. I'm pretty sure (well a hunch) that this is going to be down to NAT
version 12.4
service timestamps debug datetime msec
service timestamps log datetime msec
service password-encryption
!
hostname Router0
.[code]...
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Apr 29, 2013
My internet connection suddenly stops for about 30 minutes of using it. I need to restart so that I can connect again.
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Jan 29, 2013
I can no longer browse through any browser, or update any programs (even though I am still connected to my wireless router). I have already done a Refresh, but the problem persists
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Feb 7, 2013
A short while ago, I had my data backed up onto a new HDD, as the old one was showing signs of failing soon. When I got the computer back, I noticed a problem where I need to constantly hit "Diagnose" in the Wireless Network Connection Status to get my internet working again. When it gets into this stage, several websites continue to work, I don't lose my connection to them. Some websites I can still connect to without a problem. However, many websites, even google, keep giving an error that the host could not be found. It appears that it stops accepting new connections until I reset the wireless card. My Laptop (using wireless) and other PC (Connected directly) have had no issues at all with our wireless router.
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Oct 16, 2011
Wireless internet connection stops working after anywhere from 10 minutes to two hours, a message pops up telling me it is "impossible to connect to my preferred wireless network", and then it fails to detect any wireless connections at all. The strangest thing is that when I try to "repair" the connection, which used to work, the computer immediately shuts down and restarts itself. It also seems like when I attempt to download something, like a movie for example, the connection fails right away, while if I'm just surfing the web it usually lasts around an hour before stopping. And when I restart the computer again it works perfectly fine at first, like right now, but eventually does the same thing.
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Aug 17, 2012
I have a Philco PHN 15006. My drivers should be up to date. Since I've started using it, I noticed I lose connection with internet and then I have to restart the switch/router. Then, it starts working again. I used to have to just open the Solve Problems and then it would connect again. But now, I tried just unplugging the Ethernet Cable and plugging it again. It had the same effect as restarting the switch. So, the problem must be in the notebook.The wireless internet is worse, because it connects for a while then stops connecting, while my other computer connects with no problems.
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Nov 12, 2012
I boot up my computer. I close it over. come back later. open it. Computer will connect but with the small yellow triangle. Thing is though, it's only my computer that ever has issues with my internet connection. My sisters laptop has never had an issue with out internet. Yet my laptop is able to connect to the neighbors internet fine. The solution to my problem almost all of the time is to simply reboot my computer, which solves the problem(most of the time). But i'm getting so sick of having to do it. The other times when a reboot doesn't work I have to manually reset the internet. As i'm typing this I'm on my neighbors internet. my sister is connected fine to our internet but my laptop simply won't work with it so i'll have to reset it when i'm finished this Some useful information might be that this problem only started happening ever since my computer got wiped.I've tried updating the drivers but apparently they're up to date.
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