yeah... sounds like you may be dealing with issues in route. What they could be can vary. It might be worth an email to your ISP's support, with the IP addresses you were tracing and pinging. Mileage can vary... once in a blue moon you will get a tech that actually terminals to your router and runs a few tests and finds something and is able to contact someone at the downed IP to get things moving. More often then not though, if you call in, you'll get a helpdesk that doesn't have the tools to properly diagnose the problem--why I say to email them if you can. Most will have a means for contacting support via email...just might be buried. Usually your best chance to get to T3 support. Used to be able to ask for it with Road Runner, but Time Warner has rebranded internet and it's like pulling your own teeth to get past the help desk on the phone.

Not saying this is the be-all end-all for your problem... but think you may have found something that has potential to be a problem. If not now, it may rear it's ugly head later.