Yes I did troubleshoot fully, as documented in the first 2 posts
1. I went all out, disconnected all devices, factory reset the modem/router and then tried to connect off a fresh configuration. Then with DMZ. That's when I tried a different connections(same ISP just next door).
Yeah the problem just popped up around April, so I'm pretty perplexed about the why.
What's truly maddening is I can see ping pong traffic with the server via wireshark when I try to connect, so it's not just a filtered port.
Winter will be here soon, and I'll spend a day with the ISP(Consolidated Communications) and see if we can resolve it.
-- Gecro the sad Necro