Cant connect to the network, network enabled.

Hello,
I am having a network problem. I use verizon FIOS (don't know if thats relevant). My desktop is plugged into our home network (wired), and it is a host (eg: I am wired into the printer, etc, and the rest of the computers, which are wirelessly connected, print, etc, through me). Lately, the other computers on the network have not been able to print through me or access my shared files on the network. everything is shared, and all the options in the network and sharing center are enabled correctly, but it still doesn't work. also, all of the sudden I cannot connect to the wireless network in our house (and I believe this is the crux of the problem). My computer can see the wireless network (called Hobsnet), but it says "the capability of this network adapter does not meet the requirements of this network" and wont let me connect.

Id appreciate any help/input I could get here.

thanks

Tigz