iCloud re-login every 15-60 minutes

[jackblack87]

Since the update to 10.15.3 I need to re-login in iCloud more often than usual. Today I had to re-login after 50 and then again after 15 (!) minutes.
Before, I had to re-login only every 2 or 3 computer restarts (since Mojave). Under High Sierra, Sierra, El Capitan (...) I had no problems with iCloud. I think this problem got worse since I updated several OS Versions over the past years and something got wrong in my config.plist and/or serial number (just a suggestion). I have installed the recommended iMac14,2 system definition.

What can I do? If I have to look at my config.plist, where do I have to look exactly?

Thanks for any help!

 

[jackblack87]

Wow, I thought this was an easy one... Am I really the only one?

 

[HappyJack247]

That is an old motherboard. Are you using UEFI or Legacy Bios?

 

[jackblack87]

That is an old motherboard. Are you using UEFI or Legacy Bios?

UEFI

 

[Grauchi]

So do we assume re-logging every 1-2 boots in Mojave is normal? It started happening to me a while ago, after months (over a year I think) of no problems.

 

[UtterDisbelief]

So do we assume re-logging every 1-2 boots in Mojave is normal? It started happening to me a while ago, after months (over a year I think) of no problems.

No, it isn't.

Check disk permissions. Run First Aid on your main drive from Disk Utility on your UniBeast drive.

 

[Grauchi]

Thank you for your answer. Just checked, no problem.
I have restarted two times now and no error. I am also checking NVRAM.

 

[Bustycat]

Or your serial number is valid for Apple.