Not sure if this is the correct forum to post this under. Please keep me right if I am wrong.
Previously I had only used my desktop PC with an ethernet cable connected to my router but had to move my PC upstairs. I installed a TP-link Wireless USB adapter a few days ago to make it wireless and it was working brilliantly.
Yesterday I installed Win 7 SP1 and IE9 (I previously had IE8) via Windows update and now cannot connect to the internet. I have Win 7 32-bit.
I am typing this on my laptop, which has no problem connecting to the Internet wirelessly via the same router that the desktop previously connect to via ethernet cable, so canot attach a screen shot. However the new USB adapter connection for my desktop PC status shows that IPv4 and IPv6 Connectivity are both 'Not Connected'. The Media State is 'Enabled'. The desktop PC wireless connection to my router downstairs says it has 'Limited Access', i.e.it will not connect. I have tried disconnecting and reconnecting it, uninstalling & reinstalling it without success.
When I went in to Device Manager I saw an Error Code 39 for six Network Adapters that I didn't even know I had (all Microsoft - 6to4 Adapter, 6to4 Adapter #2, ISATAP Adapter, ISATAP Adapter #2, Teredo Tunneling Pseudo-Interface & WAN Miniport (IKEv2)). This said that they were corrupted. I tried to update them from the PC but they were unable to reinstall correctly and I just got the same error code. I then did a restore to roll back to before Windows update but this made no difference. I then uninstalled five of the drivers under Device Manager Network Adapters. However WAN Miniport IKEv2 refuses to uninstall and I no further forwarding to connecting to the internet from my desktop PC.
Please help me!