Connection issue

Hi,
I’ve used Trainer Day with my iPad and Wahoo Kickr Core (*edit) with no problem for several months. Recently my wife got a Trainer Day account and uses her iPhone and the same Kickr.
We realised sometimes we had to switch off hers or my device to prevent interference.
However, today I could connect to Trainer Day (with my Ipad) but the power didn’t change when I pedalled. We switched off all other devices, restarted Kickr, etc. but still same problem. I assumed it was a Kickr problem
Then in afternoon wife connected with her account and iPhone and no problems.
Any suggestions?

Were both phone and ipad on the same version of TD and iOS ?

I wrote were instead of are deliberately.

Thanks for reply.
I don’t know but that’s a thing for me to consider. We both just update iOS and apps when prompted. I can see on iPad that there was an update to 10.0.3 three weeks ago

Show a screenshot of your connections page. I bet you lost control setting.

Ok this is a strange one. Did you power off and on the kickr? Probably re-installing our app will fix it but I have never heard of this problem. We switch devices all the time.