Lynksis router validating is carbon dating accuracy or not
If these are out of warranty, I strongly suggest that you pop it open and look carefully at the electrolytic caps.
Right now there is only one computer on this network. It doesn't seem like an internet connection problem. While I can't rule out connection problems 100%, this didn't started happening until immediately after I switched routers. Whichever area you think is the best place for this question is fine with me.ie No related updates I can think of - except the usual windows updates. It would seem to me you have isolated the issue to the new router.