I have received a pair of GoTennas a few days ago and have been fighting to get them to communicate with each other. I only have the two, so I cannot confirm if one is broken. They both pair find with my 2 iPhones (tried a couple of iPads as well), both show Europe, ITU 1 as region but Shouts sent from one never reach the other. Direct messages or pings also fail.
I’ve tried to unpair, repair, remove the reinstall the app, nothing works. I only have iPhones. I’m in Romania if that matters.