I need advice on some Router Issues?

I recently installed a new router the Netgear N900. It works flawlessly with everything, with great range and connection quality, except my Xbox and PS3.

Even the TV gets instant access while it takes multiple attempts to get throughput wired on the Xbox (which doesn't remain stable and crashes after an hour or so). In addition it gets always gets connection to Internet half hour into each connection test, but its connecting to Xbox live that's the issue.

As for the PS3 it only connects to the Internet through WiFi, and rarely to PSN, and wired it never gets connection to the Internet.

My laptop, android, iPod, tablet, desktop, tv, dish dvr, & AVR all get access seemlessly the momemt I connected them but I can never get my Xbox or PS3. Is it an issue with the router's firewall, encryption type, or something else?