I have a new WRT300N, and cannot install it with the disk provided. Tried resets, tried 3 suggested passwords. I can't get beyond step 9, where it asks for the password. When looking into the router, there is no "default gateway address". (via ipconfig/all) When it's wired from the modem to the router and the PC is in any port, no internet access is available. I've tried it with another PC and the same conditions exist. The connection map shows an amount of bits sent, but none received. System is Vista with McAfee package. Any ideas would be appreciated.