i had to reinstall my operating system and wipe everything off of it because of a virus i got

so everything is all clean and new now and i downloaded limewire and thought, "i can get my music back!" well i only get 1 bar and even with my firewall off and it under the exceptions it wont connect

i have a netgear router my isp gave me because my sister connects off of it

anyone know how i can get limewire to connect?
its always worked before for me even when i had to install it once before this time