or inline of some microwave towers? Any high power lines running near the house?
We've been having connectivity problems with our ISP. Usually we have to turn off the router and turn it on. I looked over our router settings and in the router log, noticed it was making contact with other IP addresses. I ruled out the IP addresses that our phones were using for updates, and ruled out the IP address from our ISP. There's still a large number of IP addresses in the Firewall log that are unaccounted for.
If it helps, we live in a rural area and the nearest houses are 1/4-1/2 mi from ours.