In case anyone cares and is still looking at this thread, I started having connectivity issues with this router, so I installed DD-WRT v3.0-r30949 std (12/15/16). This has seemed to fix the...

Can't see anything about it in their specs or wiki. Heading out of town for a couple weeks, I'll look into it more when I return.

Likely culprit is network latency. According to the techs at TP-Link; if the response time from the NTP servers is > 500ms, the request times out and error 5028 is thrown. This is consistent with my...

My ISP claims to not be blocking port 123, which sounds reasonable, as updating my OS time works when directly connected to the modem, but doesn't when connected via the router. Looks like it's a...

Starting to think my ISP may have started blocking port 123. I've raised the issue to them and will update this thread when I receive a response.

I've tried this, as indicated in my original post. Sample IP: 69.167.160.102