I don't know the kind of setup you have with your ISP...are you using a Broadband router...Or is it a straight connection through a switch to the default gw....anyway let me see if I can help you..
I think there is a problem with the broadcast address it's same with the IP address
inet addr:10.1.77.141 Bcast:10.1.77.141 Mask:255.255.255.240
For that subnet mask the Broadcast address should be 10.1.77.143....If you know subnetting.....and the default Gw should be any IP Btw 10.1.77.129-10.1.77.142......
But according to the settings I see for windows....I assume the submask is either 255.255.255.128 0r 255.255.255.0 since you are able to reach the default gw.
You can try the above settings by changing the in /etc/networking/interfaces.....if all else fails put the exact settings like the ones in windows using a text editor and restart networking /etc/init.d/networking force-reload....
i hope it works.