I bought the 2.53GHz 13' MBP in Sep 09, currently on SL 10.6.2, been working absolutely fine until 2 days ago. The wifi dropped and the wireless connection management window popped up asking for the WEP passcode to re-connect to my router. I put the code in but Airport just couldn't connect back to the router. I've got a Windows PC at home which is working fine on that router, also swapped the existing router with another different router, same problem (Windows PC also working fine with this router). Anyone having or had the same problem?