Intermittent Network / Internet Connectivity
Nov 2, 2009
just upgraded my vista 64-bit install to win7 home prem 64-bit.
everything has been working great except for an internet/network issue. at random times, all of a sudden the icon in the tray gets that yellow exclamation point over it and says there's a network issue and no internet available. it's like that until i disable and re-enable the network adapter. there are other systems on the wired router and they're still working fine (vista and xp machines).
the strange thing is it *seems* to only do it when i start doing more than one thing at the same time. i.e. trying to watch Internet while playing an online game. or, downloading a pdf while streaming music. all of a sudden, all internet goes down (other computers still working fine though). once i reset the adapter, all is well.
any ideas here?
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Jun 2, 2011
We have 2 wireless laptops & 1 hard wired tower (all onWindows 7) in a home network. (All hardware are new this year) The laptops have intermittent internet connectivity yet do not lose the network connections. I have upgraded both the Motorola modem and Linksys router to Windows 7 but it did not resolve the issue.
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Nov 25, 2009
I'm running 7 Home Premium 64bit on an HP box we got about a month ago.
Lately, when I restart the system, I can't get any internet connection. I can access shares on my home network, so the nic is working and I'm getting an ip address from my router. If I disable and reenable the nic, the internet connection works again. I've tried disabling firewalls and things like that, but the only thing that fixes it is the disable/enable.
The network "troubleshooter" can't see anything wrong, and everything looks like it's configured properly, and nothing has been changes since the initial setup. It worked fine for a couple weeks and now doesn't.
Anyone seen this before? Hints? The disable/enable isn't a big deal but I know at some point I won't be home and my wife will have a problem and I'd rather not deal with that!
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Jan 15, 2012
The problem I've been experiencing is my local area connection "network" switching... if that makes sense. What seems to be happening is when i connect my desktop pc (via ethernet) and laptops (via wireless) to the new modem/router ( either netgear DGN2200 OR linksys WAG160n), the network and sharing center will say im connected to network 2 and only provide internet access to my desktop while the laptops have no internet acess, and after numerous disabling and enabling the wireless on the laptops and doing power cycles on the modem/router, internet access is granted on the laptops... then however, no internet access on the desktop (happens on both modem/routers).
Then by some act of god, there is internet connection on desktop and laptop, and when I check the network and sharing center, it would say I am connected to network 4, but thats not all, because when I turn my pc off overnight for when i sleep, and turn it back on, I'd still be connected to network 4 and have no internet access on desktop or laptop and what I mentioned above happens again and I'd go through all the general trouble shooting stuff and randomly it would work again. After speaking to support from both Netgear and cisco... I think the problem might be with my network card?
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Feb 17, 2012
I had Windows 7 32-bit running on a Dell PC. About one week ago, I noticed Internet connectivity was gone and that there was "limited connectivity" as I was now connected to an "unidentified network". The other systems on the network are still connected and working perfect; the problem is isolated to this one system. The network uses a static IP scheme. "IPCONFIG /ALL" shows that the IP is assigned, is included on the correct subnet and has the correct gateway and DNS information. I've tried a host of solutions suggested on forums; from "route delete 0.0.0.0" to disabling my firewall to configuring for a dynamic IP. Nothing has worked. Reluctantly, I resorted to a fresh install as I began to worry that I may have picked something up. I completely wiped the hard drive and did a fresh Windows 7 32-bit installation all only to have the same problem. I assume that the NIC is functioning as it accepts all IP settings.
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May 3, 2011
Verizon Fios, Actiontec Router. Windows XP machines (wired) (2) never any internet loss whatsoever. Running the wireless from the Actiontec and also a Linksys that is on one of the ports. (distance issues) The Linksys always syncs up and both wireless systems work 100% all the time with either XP or Win 7 laptops.
Here's the issue: two wired desktops running Win 7 have intermittent internet drops. One is older, one brand new fresh out of the box. Turned off the power saver NIC card function on both, WOL disabled. That's not the problem because the internet losses occur sometimes after the machine is on for a few minutes, the PC does not sit long enough to go into power saver anyway. There's no rhyme or reason as they say when the loss will occur. Sometimes this will not happen for a day or more, other times it can happen after using the machine for just a few minutes.One thing I have been trying is to disable IPV6 then I can get the internet back, othertimes re-enable it to get the net back. Go figure. Again, disabling it will not fix the problem, however switching it on/off will. Disabling and re-enabling the NIC will only fix it sometimes, most instances that does nothing. There are different types of NIC cards in the machines, one uses a Realtec on board, the other uses Nvidea on board and a plug in NIC (brand?) all NIC cards/board performs the same.Also, when they DO work, if I let them boot for a while, usually they will be fine, but that's looking at a 10-15 minute boot up. (doesn't take an excessive time for actual boot-up but I mean just leave it alone for 10-15 min) The Actiontec has the most current update version, and is about two years old. Somehow these machines lose the internet portion but not the network portion. Such an annoying problem, even more so when I added a brand new machine and get the same issues. I would be willing to bet that if I ran them wireless there would be no issue, but that's going to slow down the dl/ul speeds that I get with a wired connection.
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Mar 21, 2011
Every since I connected a Windows 7 (64) laptop to our network, internet has become intermittent to other users. There seems to be a conflict of some kind in our LAN. DHCP is on in our ISP Router/Modem. And I haven't seen any IP conflict so far.
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Jul 15, 2011
My grandfather called me yesterday and said the other day - his Dell Desktop automatically downloaded Sp1 and Sp2 and once it restarted - he could no longer connect to the internet. *Note - he is connected via a cable to the router* The computer shows he's connected to the router but it cannot connect to the internet.
He tried to use a "restore point" prior to the update, but they were all gone. There are 2 other computers connected to the internet and neither have any issues - one is connected via a cable and the other wireless.
I checked the settings on the router and modem and don't see any "stand-out" type issues. I'm not sure what else to do or check?
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May 4, 2012
The Icon that shows my connection status is wrong. e.g: when I'm disconnected it shows I have wired internet connection, and when I have a wireless connection it shows that my internet adapter is off. How can I restore the the original icons' behavior?
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Jul 11, 2012
I am having a problem with my Toshiba NB505 Netbook - running Windows 7 Starter. I can connect fine at home to wifi- and also at my local public library. However I was unable to connect at a motel I was at recently and had the same problem when I visited a different local library.To be more exact, I was able to connect ok at these 2 locations - but there was no internet access. From reading, I suspect a 'DNS' issue of some sort, but I don't know how to go about remedying it.
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Sep 27, 2012
My wifi was working fine a few days ago but i think the windows update has messed up my wifi adapter or connection. I did do a system restore when this happened a few days ago but since the restore is more then 1month old it is no more.So far i have tried the following:restarting/rebooting router,updating/reinstalling drivers,and many other things but nothing seemed to work i dont understand why it is scanning for wifi but on the mapping it says adapter isnt connected.I have shown a few pics to help you:
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Jan 11, 2010
Two days ago I lost internet connectivity suddenly on my desktop (Dell XPS 630i, onboard Nvidia network controller, running windows 7 Home Premium 64bit) and have been unable to restore it. As my laptop (winXP sp3) can still connect to the internet and the router settings have not been changed (Dlink DGL4500), I'm making the assuption that my networking problem resides on my desktop alone. the network adapter gives me a 'limited connectivity' symbol and refuses to connect to my network, even though the router acknowledges the desktop's wired connection. The troubleshooting diagnostic sometimes finds nothing, sometimes finds that the computer is not obtaining a proper IP, and sometimes claims the problem is the router. I've also disabled windows firewall. Throughout this whole process I have been getting a 'Drive Power State Failure' BSOD during restarts (about once every four or five restarts, not consistently).
At first I was unable to replace the drivers or uninstall the adapter through device manager. After reinstalling the drivers using the Nforce 650SLI drivers on their website, I was able to do this, but this did not solve the problem. I also did a windows restore to before the problem occured, also with no luck. I've been through the event log and there are numerous code 5007 errors, which just tell me that the adapter timed out during an operation. I've also read through some forums online and tried several solutions including adding a DhcpConnBcastFlagToggle line into the registry: SOLVED: Network Icon Exclamation: No Internet
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Oct 11, 2012
I have a wifi home network with several devices (laptops, all but one are Windows 7, and a wireless printer) connected through a dsl modem/router (a NexusLink 5631) to each other and to the internet. The laptops can all access shared folders on each others' hard drives, and all can print wirelessly to the printer. Until ... after a few days of happy camping suddenly none of the devices can 'see' each other (can no longer find any other device on the network) and none of the laptops can access the wireless printer. However, internet access is never disrupted; each laptop can still happily surf the net no problem.I am somehow able to rectify the problem by rebooting the dsl modem/router, updating the connection settings on the printer, going back and doing it again, turning round three times and twitching my nose ... after fiddling for a while to no good end everything comes back as it should. And I don't know why.I have contacted my dsl provider (Frontier, in Ohio) who own the modem/router and they say it's nothing to do with them. As long as I have internet access they're not interested.I called them because, interestingly, all this only happened when I switched from my old) cable provider to the dsl provider. When I had the old cable modem/router this issue never occured.
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May 4, 2012
I am having a problem connecting to the internet in a public library where all other laptop users are connecting successfully. The curious part of the connectivity issue (to me, anyway) is that according to my computer I AM connected to the network. I have provided some screen caps of the issue (links below), and tried to run the Intel ProSet Wireless Tools diagnostic to troubleshoot the problem of connectivity. The test run by my computer indicated that my Ping Test failed Response: Default Gateway, DHCP server No Response.
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Jun 11, 2009
This has been an issue since I upgraded to 7201. It isn't constant, and seems to be worse when I'm downloading large files, especially multiple files from one source (like an album in iTunes). It is fixed by release/renew (or just letting Diagnostics do that).
If I'm not using a lot of data (regular web browsing, working on a database online, etc), it seems perfectly fine. It is holding so far downloading one track at a time on iTunes, but if I do 2, it drops the connection.
I'm using the Home network config, router is working normally, and I can't recall this happening before 7201. I've reset the router, upgraded firmware, and it only happens on this PC. I've set WINS, tried all settings for TCP/IP 4 and 6, and using the other ethernet port on my motherboard.
More of an annoyance, really, but I can't figure it out and it is bugging the hell out of me.
EDIT: I can still get 1 mb/s on a single download, but trying 2, I get 600/400 for about 10-15 seconds until it disconnects.
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Sep 20, 2011
Google Redirect/rootkit infection (See here), I managed to get more or less rid of the thing. After this, I have encountered a "c0000135 %hs is missing" BSOD just after the end of Windows loading that I corrected by modifying the registry following. So now my installation works properly except that no internet connection is possible. I've been trying to do it via ethernet, wifi and mobile phone tethering and it just doesn't works. No IP address displayed, even when I try to force a manual IP (normally everything is sorted out via DHCP) or flush all DHCP/DNS... infos, the diagnostic tool from Windows concludes to a possible defunct driver. I've got a clean installation of W7 x64 (same version, up to date) on another hard drive and of course, everything works well (it's from this installation that I managed to properly clean up the other one and modify the registry). Little detail : I uninstalled Zone Alarm in a not really proper way so it may be something with it too.
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Feb 10, 2011
Whatever modem/router I use (except my old 2Wire that died in Dec. 2010), I lose connectivity after I resume/wakeup. The tray icon says "connected", but my browser (Firefox) or my email client (Thunderbird) say "no"!
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Nov 1, 2011
I had my HTPC up and running last night, watched a movie, turned it off and went to bed. When I woke up this morning I found that I couldn't get any sound while playing videos through my web browsers, thinking it might be a video card issue I first checked some of my movies, but they also wouldn't play with sound so I deleted my nvidia files and reinstalled them. No luck, on one restart I lost my internet connection with my router. If I look inside the Buffalo's settings, I can see my HTPC's IP address (after running ipconfig /all on the htpc) I did a system restore but that didn't work. I even went so far as to do a clean install of Windows on the HTPC, but that also didn't work. I keep getting the yellow triangle and the message "unknown network" The HTPC tells me to check my router, which I have restarted a number of times unplugging the cable modem and the Buffalo. Turn on the cable modem get it online, then plug in the Buffalo, but nothing works. I have tried switching ethernet cables, ports, but no luck.
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Jan 5, 2010
Linksys Wifi router Died, so i am now connecting to the internet Directly from my speedtouch ADSL modem, on every reboot i loose internet connectivity.
It's basically connected to my home network and it's also connected to an unidentified network, to fix i have to disable and re-enable the network card..
Any body else experience this ?
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Nov 1, 2011
I had my HTPC up and running last night, watched a movie, turned it off and went to bed. When I woke up this morning I found that I couldn't get any sound while playing videos through my web browsers, thinking it might be a video card issue I first checked some of my movies, but they also wouldn't play with sound so I deleted my nvidia files and reinstalled them. No luck, on one restart I lost my internet connection with my router. If I look inside the Buffalo's settings, I can see my HTPC's IP address (after running ipconfig /all on the htpc) I did a system restore but that didn't work. I even went so far as to do a clean install of Windows on the HTPC, but that also didn't work. I keep getting the yellow triangle and the message "unknown network" The HTPC tells me to check my router, which I have restarted a number of times unplugging the cable modem and the Buffalo. Turn on the cable modem get it online, then plug in the Buffalo, but nothing works. I have tried switching ethernet cables, ports, but no luck.
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Apr 13, 2009
Yesterday I updated to v. 2.2 Of Sun Virtualbox and have lost my connection to the Internet on Windows 7. The 'VirtualBox Host - Only Network Status' reports "limited or no connectivity". This is because "the Network did not assign a Network Address to the Computer". I have not been able to solve this problem, the icon in the sys. tray has a yellow marker against it.
I have normal connectivity on Windows XP.
I cannot wind back using System Restore as there are no restore points. I do have a drive image of my C; drive dated just prior to the update, would this work?. Is there an easier way?.
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Aug 22, 2012
I have a few computers that connect via rasdial to a bridged modem. They are dropping off randomly and frequently enough that its a pain to have to reset them manually everytime. How I could write a script or something that would check for internet connectivity and if there is none then it would re dial the pppoe connection?
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Nov 15, 2012
Drivers, sound, video and internet connectivity after formatting
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May 1, 2011
For the past few days, I have been on a intermittent wireless connection. Under the wireless network icon, there's an ! mark, I tried to solve it using Microsoft diagnosis, but it didn't work. I switched off Microsoft Miniport Adapter too, didn't work as well. I Pinged my own connection using Command Prompt and the results were fine. For a limited random number of sites, I am still able to access. I tried Torrenting and it still works too.
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Sep 1, 2009
I have an intermittent problem with networking my desktop machine to my laptop. Sometimes after I hibernate my laptop and then wake it up, I am unable to access my shared drives on my laptop from my desktop. I am always able to go the other way (access shared drives on desktop from laptop. When it does this, even reboots of both machines don't help.
I just asked Windows 7 to diagnose and I get this. Usually after "messing" with the network settings, log offs, reboots, who knows, it usually starts working both ways again until some later hibernation restart of laptop. I wish I could pinpoint some common things that cause it but I just can't figure it out. Any ideas?
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Feb 23, 2011
Several users are getting a delayed response when trying to open a network drive. There are several instances where it would take 15-30 seconds to open a network drive.Also users are having issues saving a document, receiving the error message "access denied you do not have rights to do this" seems like the network connection is breaking at some point to making the computer think there is another copy open.What I've done so far:
latest windows updates
latest word processing and client updates
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Nov 5, 2009
I work at a company in the UK which is attempting to start rolling out Windows 7 to all computers (early adopters and all that, it's just a lot easier than the current mishmash of OSes we have!). One of the 4 users migrated so far is having an odd issue with her wired network (her network controller is a "Broadcom Netlink Gigabit Ethernet"). She's the only person not from the IT dept or the MD of the company to be moved across, so we set her up as a non-administrator to avoid problematic software etc etc.
Suddenly, 3 days ago, whenever she switched on her computer, the connection would claim "Limited or No Connectivity" (even though she appeared to be connected to the Domain), and there was no Internet access. Having played around with numerous things (driver updates, both from Broadcom and HP - the laptop manufacturer, being the main one), I found the only way to get it working again was to disable and re-enable the network controller. The problem with this is that it required a UAC authorization (even though I'd set UAC to never notify), and that requires a domain administrator password (which is a pain in the wotsit).
Anyway, I figured, reluctantly, that if I set her account up as a local administrator, that at least it shouldn't require a password to reset the device. Rebooted the PC, and suddenly the wired network started working from boot without the need to reset the controller.
My question is - has anyone else had any issues with non-administrators being forced to reset their network controllers to get internet connectivity, and is there a known fix?
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May 6, 2009
I installed Windows 7 RC 64bit on my Ausus Striker II Formula Motherboard (Nforce 780sli) and everything was working sweet.
I attempted to do a System Transfer from my old Windows Vista 64bit (where you transfer your documents etc.), this appeared to go well however now my network connection will not work. DHCP or Static IP settings dont work. I am unable to change the 'unidentified' network's location from public.
Any ideas from anyone?
I am close to reinstalling.
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Feb 27, 2011
On the right hand side of the taskbar I have the icons for battery life, volume, internet connection, etc. When I used to put the mouse over the internet connection it would show me who I was connected too (SSID) , signal quality, and speed.I began having some issues so I had to remove my Netgear connection and then reconnect.Ever since I did this all that shows up now when I put the mouse over it is now only says: Netgear and Internet access.How do I get the information back. It shows up on my desktop, but not my laptop.
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Apr 6, 2011
I'm trying to fix my sisters laptop, which just wont connect to the Internet. I've checked everything I can find. Here's a description of the problem - When looking at the icon in the system tray that shows the connection bars, when I hover over it, it says "not connected - connections are available" . On the related pop-up window It does show my wireless connection. When trying to connect to that wireless network, it eventually says "the connection was unsuccessful - this computer has limited connectivity to "bthomehub.....".
At this point it gives an option to troubleshoot, when I select this it says - "problems found - there might be a problem with the driver for the wireless network connection adapter". If I look at the troubleshooting report from this window it says "windows couldn't automatically bind the IP protocol stack to the network adapter". In 'network and sharing centre' it shows the computer being connected to the homehub, but no connection from homehub to the Internet. Attempted to ping ebay, got this response - "ping request could not find host ebay.com please check then name and try again."
Under wireless connection status it says -
"ipv4 connectivity - no Internet access"
"ipv6 connectivity - no network access"
From looking around on the internet I have tried the following -
- netsh winsock reset catalog
- netsh int ip reset reset.log
- reinstalled drivers for wireless network connection adapter
- checked that windows has no restore points
- tried ipconfig /release at command prompt, got the error "the operation failed as no adapter is in the - - state permissible for this operation"
- tried ipconfig /renew at command prompt, got the error "the operation failed as no adapter is in the - state permissible for this operation"
I tried removing various antivirus/system protection apps...at this point I then got a yellow icon over the connection bars in the system tray, and it now says im 'connected'. but it says 'no internet access'. Its a new laptop running windows 7, it did work fine for a while and then suddenly stopped working while connected to the internet.
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Jan 14, 2012
m using toshiba satellite L640 when i try 2 connect 2 internet it keeps on acquiring network address and shows limited connectivity in windows 7 home premium..
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