My LAN connected PC loses network connectivity every 30 minutes. It has a static IP address and I've checked to make sure there aren't any IP conflicts on my network. If I'm streaming from that PC to my Xbox the stream will be interrupted and it normally takes about a minute to come back online. The same happens if I'm actually on the PC and just browsing the web.
I'm looking for suggestions on how to track down this issue. I've tried checking the available logs on my router to see if there is an issue with DCHP but have been unsuccessful in finding any evidence. Any suggestions would be helpful. I can't think of any recent changes to my network, PC or software installations that may have caused this. I am a software developer and have intermediate networking knowledge.
EDIT: During the last outage my PC was not able to connect to the router. A separate laptop was connected to wireless at the time and had no issues browsing the internet or connecting to the router. A new symptom however has arisen. The Xbox 360, connected via ethernet cable, was not able to connect to Xbox Live. This is the first time this has happened. No devices connected via wireless (laptop, iPhone, iPad) had any connectivity issues, but two ethernet connected devices had issues.
EDIT: During one outage I told windows to troubleshoot the network problem and it said that it could automatically fix the problem by changing DCHP info. It basically said my network adapter from static to automatically obtain. This did fix the issue quicker than just waiting it out, but the outage occurred again 30 minutes later even when leaving those settings.