e84 error again and again

[dancing.in.the.web]

As my son and my daughter plays often from their accounts but on my PC (it is the most powerfull). Reloging to steam client are pretty often. And last days e84 error appears all the time.
There are no ANY logging tries before the error. Just you turn on PC, try to login steam client and have the error. I have i right not to login THIS account to client. Just opened steam site in browser (where my account is logged) to write this issue.
Yesterday my daughter could not login from my PC all the day (i even reinstalled steam client), but when she autologged to her account from her PC (in the same home on the same router) she could enter her account and on my PC.
Today i cannot login steam client on my PC and i have no other PC where my account is autologged.
FIX the problem plz. It's defenetly client issue.

[dancing.in.the.web]

upd: installed steam app for phone. Tryed to log with QR code. Now steam client tell me error 84 (without e)

[dancing.in.the.web]

After several retries could login with phone qr-scanning.
But it's not the solution. The client is bugged with account changing.

[ArtaX]

Same problem here. Can’t login to my account..

[Sprintcollares]

I have tge same issue here, it connects 1 in 20 times.

[Imperador]

still happening here

[Yandy]

This thread was quite old before the recent post, so we're locking it to prevent confusion.