Tesltra Netgear Router with Apple TV "Can't Connect to Library Error" frequently.

I have a Telstra Netgear CG3100-2BPAUS connected wirelessly to my Windows PC with Windows 7 & Apple TV 2. Frequently I get the error "Could not connect to "Library"". This happens midway through watching a show. Restarting itunes seems to fix the problem temporarily, before 30 minutes later it generally happens again.

I'm wondering if it is something to do with the router not allowing my computer to communicate with my Apple TV correctly and if there are any solutions to this problem.