I need someone at AT&T with more knowledge and access to look at this problem. It may be that traceroute is not a definitive test for example, the router beyond the last one returned may be configured to not respond to ICMP at all. The conclusion is that there is a problem in the network path between me and Oddly, though, a traceroute stops at exactly the same router. I suspect there is a problem with the router at the next hop after that. When I run a traceroute, the packets do not get past the router at 64.70.11.50. I can get to this site from a computer at the public library, so it is up. Likewise, the Chromebook and W 7 laptop can get through if I tether their Wi-Fi to the phone in cellular mode. If I switch the phone to the cellular modem connection, I can get through. None of the systems can get a connection without a timeout when accessing this one site. I have rebooted the router and the W 7 laptop, just as a check.

I have a Windows 7 laptop, a Windows 10 laptop, a Chromebook, an Android phone, an a Raspberry Pi.

None of my systems can reach this specific site. Starting around 11am Friday July 7, I lost the ability to reach a major online backup service.

Idrive website