Tacx No signal

Hi, first time posting. Been using zwift on iOS with my tacx flux for a couple of months, no issue. Last night I completed a session, no problems. Tonight, problems connecting to Zwift. Trainer connects but shows “No Signal”. I noticed there was a zwift update last night, is this an issue??
I tried tacx utility, upgraded to latest firmware. Everything shows as ok on this utility app. Tried disconnecting BT on devices, still No signal…help!

What is your setup? I use Apple TV and sometime have that issue if I don’t force-close the app after each use.

Hi, I use ipad with zwift app, connected with my mobile hotspot on my phone, then run companion app on that. Has bee working a dream, until yesterday.