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#1
Mysterious internet connection issue
Okay, I've had this issue for a while and I'm going to try and explain everything I can recall about it, but please feel free to request any relevant information that I may have missed out.
The issue is the following: At some point for some reason, my PC loses the ability to establish NEW internet connections. Ping requests time out, pages don't load, etc. HOWEVER, existing connections remain unaffected. I can remain signed in to Steam friends, Mumble, etc. However if I disconnect from said Mumble server, I will not be able to reconnect whilst this issue is in effect.
I have had the issue occur spontaneously, but that's rare, and that's only ever happened when using a wireless adapter, not when using the ethernet cable. I believe this may be related to the fact that it can also be triggered if I switch the router off for an extended period, so my wireless card loses its connection. Then, if I switch it back on, the issue will happen.
I can also trigger the issue by hibernating my PC and then restoring it from hibernation.
The problem does NOT appear to be adapter specific. I have experienced it using an ethernet cable to connect to the router, as well as a USB wireless dongle rather than using my wireless card.
In addition other Windows 7 machines (two laptops) in this house are not affected by this issue, the problem is unique to my PC.
Disabling and re-enabling the adapter can temporarilly fix it, but disconnecting and reconnecting does not. If the issue occurs, restarting the computer usually permanently fixes it barring any of the 'triggers' above.
I have also recently found that using ipconfig /release followed by ipconfig /renew will temporarilly restore it. In fact, when I repeatedly used these commands today each time the issue appeared, it has remained connected for longer each time, without disconnecting. However because the amount of time I can remain connected after 'fixing' it without restarting can often appear to be random, I have no idea if this really has dealt with it yet.
I did try changing to a fixed IP and gateway in my network settings. This temporarilly fixed it, but when the issue appeared, ipconfig /release followed by ipconfig/renew did NOT have any effect. I restored it to automatic detection and it worked again, etc.
This issue has me frustrated. I am no networking expert, but I would rather not just 'reinstall Windows' as one of my friends suggests I do, as this is not only inconvenient, but it doesn't get to the bottom of the issue, and it could potentially happen again. I want to try and track down what is happening and fix it once and for all.
Any assistance with this matter would be greatly appreciated. Sorry for the long post.