I have Windows 7 RTM Pro x64 on my laptop, and have for the past couple of months now (before that it was beta/RC). I haven't been having any severe issues until recently.
Since it is a laptop, and i carry it to 3-4 classes a day (using wifi), i almost always put it in standby. However, if i wake the computer from standby and then try connecting to a wired network, I will never recieve an ip address, nor will it be able to send any packets. My only solution is to reboot. I've also noticed that when i boot into linux, standby does not affect the wired networking.
My network card is a realtek PCIe gigabit. My laptop is an MSI GX620. I am connecting to my school's a/g/n wireless network during the day (without issue) and in my room i (try to) use the gigabit ethernet.
Any ideas? Anything is welcome!