Hi,
maton (2021-07-26):
> Connection fails when running with the default bridge selected.
Were you using obfs4 bridges successfully on older Tails (4.19 or earlier)?
I suspect the problem is caused by your computer's hardware clock
being set to local time, far away from UTC (GMT).
It would be nice if you could try this experimental image:
https://nightly.tails.boum.org/build_Tails_ISO_fix-15548-tca-test-manual-time-sync/lastSuccessful/archive/build-artifacts/
… that will allow you to set the time zone and clock correctly upon
such failures, and then to retry.
Please report back :)