Blinking Yellow is normal behaviour, it means the connection is live and activity is occuring.
Ok, the thing I can see wrong there, is that you don't have an IP address. The output of ipconfig is what Windows uses when it can't find a network or (as in this case) the network isn't handing out IP addresses.
What's weird, is usually, those errors are DCHP errors, but Wireless is working fine... unless they use a different router for wireless, which is possible.
Ordinarily, I would suggest you set up a Static IP, but as this router is being used by many other people, it would probably be difficult to get a IP that isn't in use.
I would suggest you contact management/whoever deals with it, as it seems like a router issue.