When you ran the diagnostics for NAT settings did you get an open status? If you got either strict or moderate my guess is that's your problem and...
When you say you have done all the troubleshooting I assume that means you have run the network diagnostics from the dashboard?
6/10 dont really like the text and the brushing
1st 5 2nd 6 dont like the borders on either, first one needs colour, 2nd one has a bad render, both need better next
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