@EricT . What are the Seq and Ack numbers and length on frame 2569. This should be the first frame of Server Hello.
If that frame didn't make it to your computer but the second frame does, Wireshark says it missed a frame.
Everything working again for me!
Thanks everyone for their time looking into this issue.
Could be wrong but I suspect the TLS find may have helped TPG support hone in on the problem and fix it.
Didn't continue for very long after that post...
This all happened to me and I am still using my mobile as a hotspot. It's comforting to know this wasn't just me, but this is the second time in three months this has happened. I'm starting to think I need a new modem