i have a couple computers on my network that are having problems connecting to the network behind our cisco phones. This morning a user brought their computer in for an upgrade to windows 7 from vista. the laptop has worked fine behind the phone but after the windows 7 install the PC doesnt not recognize the network connection. it says "network cable unplugged".
i can remove the network cable from my SW port on my 7960 and plug it directly into the windows 7 PC and it works perfectly. i also tested the PC connection behind two different 7940. i was thinking it could be the firmware on the 7940 (win 7 users model) but it happens on my 7960 too.
i forced the PC to use full duplex 100, 10 half duplex etc.. i tried every combination possible.
i even made sure the switch port and the PC duplex settings were the same.
i made sure the network card has the latest drivers.
the two computer with problems are a HP and a Toshiba.
i am running CUCM7.1