did this just happen?
maybe after a windows update?
cause i think i have the same issue. here is my story
strange because it is and is not.
it started when i swapped out router to test an old one i had. old one seemed to have an issue so i replaced the regular unit. then the desktop nic appeared to stop working. i did all the usual things - reinstalled drivers, reset everything, etc. other system were still connected.
i put in an addon nic and it did the same thing. i put on a wireless usb nic and it did the same thing. desktop would not connect to router but it appeared like all nics were talking to the router. it just never got an ip.
i had a recent image so i reimaged the system. works fine now. other systems worked yesterday though i did have some outage.
today 2 of my computers don't connect wireless or wired. the one i reimaged still works (wired). one laptop connects either way and my droid and ipod both still connect. if i delete the network on a laptop and try to reconnect, it will ask for a p/w. the router shows the computers in the status but ipconfig returns a list with no wired nic showing. but the nic is showing as connected in networks.
I installed a usb wireless on the desktop and it connects fine. I installed it on a laptop and limited connection.
SOOOOO the problem appears to be associated with WINDOZ - how about that?
there was a recent windoz update.
inssid shows many wireless networks in the area including mine so the wireless is working, though i don't have an open one to try to connect to. btw, the test router is exhibiting the same type of issue when trying to connect wireless to the laptop that works either way on this router.
it is not a p/w or mac filter issue - both were disabled. it is not an AV issue - it was turned off on both none working computers. all systems r W7 AV is Vipre it worked yesterday it tried different ports on router and switch router id dlink 601 with dd-wrt f/w.
point me please.