I'm experiencing some funny problems with my MBP recently (2008 model). My wireless internet works fine at home, but at work it cannot seem to get an ip address (it shows full strength but says can't establish ip). Since it is an office building resetting the modem etc. are obviously out of the question. Any idea what to do? Also, in my home last night I noticed a warning saying I had the same ip address as another computer in my household. Any idea what could be going on here? (The internet seemed to be working OK during this period). Thanks.