Need help with 3g and wireless router

[Tino22]

Ok my problem is i have a Billion 400g wireless router and a mecer wm81 3g usb modem.i have the 10gb promo from 8ta.
I all ready did the set up from my desktop through the router via wired connections and the other pc's in the house can use the internet.i want use the routers wireless to get my laptop up wireless onto the network and use the internet.i pick up the network and can access shared files but for some reason i cant get the internet to work on my laptop.please help

 

[Twista]

Do you get any specific error message?

 

[dd1313]

Ok my problem is i have a Billion 400g wireless router and a mecer wm81 3g usb modem.i have the 10gb promo from 8ta.
I all ready did the set up from my desktop through the router via wired connections and the other pc's in the house can use the internet.i want use the routers wireless to get my laptop up wireless onto the network and use the internet.i pick up the network and can access shared files but for some reason i cant get the internet to work on my laptop.please help

Have you tried static IP.Make the default gateway the IP address of the PC that has the 3G dongle.Stupid question, but have you
set the 3G connection to be shared...Right Click>Properties.