Resistance zwift hub very heavy

I have a zwift hub smart trainer. the paddeling is very hard. much heavier than cycling outside. If I put the bike in the lowest gear I can hardly get the pedals round. I did the calibration but it doesn’t help. anyone have an idea?

Contact Zwift Support.

HI Lex, did you ever resolve this? I have been having what sounds like a similar issue, since 18th July and still not sorted.

Yes everything works fine . Plugged in en out few times. And calibration through laptop and not through the app.