Cannot access my modems home page.

Nore than likley that is the default LAN IP address that came with the device. It has probably been changed during the initial setup. A quick way to tell is go to your start button/ select run / type in the run box CMD / this brings up a dos shell in the dos window type IPCONFIG and hit enter.. Note your IP address and your default gateway.. " the default gateway is your device in question. make sure your IP address matches your gateay with the exception of the last 3 octects. so it should read something like this

IP Address 192.168.1.50
Subnet mask 255.255.255.0
Gateway 192.168.1.1

My guess is that your not on the "1" network but the router is handing out a different range of address if that is the case in the dos window type ping (the ip address of your default gateway)
like so ping 192.168.X.X where X = the octet values of the default gateway listed in the dos window

If it replies then your talking just fine you are simply trying to access your router via the wrong IP so take the IP of the gateway listed from the ipconfig command and put that number in your browser.

If this is not the case then we need to go in a different direction with this.

MilToN
CNA,CNE,MCSE,CCNA,Network +