SSL cert errors

Sorry if this has been posted before. I couldn’t find any resolved threads.

I’ve been plagued by this error for almost a year. Home assistant running on a Pi, with nabu casa cloud. At random times the android and iPhone apps are unable to connect when we are away from home. The apps give a SSL error.
Then at some later time the problem goes away. I have no reason to believe the problem is with the phones.

Have anyone solved this?

The log cloud URL doesn’t work either so it’s not a app cache issue. https://(blabla).ui.nabu.casa/lovelace/0

Does this occur shortly after leaving home?

Could it be connecting to local IP when on WAN connections?