Unabile to login to PVE GUI

michal12

New Member
Aug 11, 2025
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Hello,
I recently upgraded my PVE installation to version 9. Since the upgrade, I’ve been unable to log in to the web GUI (receiving a 401 error).
Interestingly, I can still log in to the root account via SSH using the same credentials. I also tried changing the root password using:pveum passwd root@pam
However, this did not resolve the issue.
Could you advise on how I can recover access to the GUI?
Thank you.


Code:
Aug 11 13:43:31 zeus perl[1211]: rp_id is not an effective_domain of rp_origin
Aug 11 13:43:31 zeus pvedaemon[1211]: authentication failure; rhost=::ffff:10.203.32.188 user=root@pam msg=failed to begin webauthn context instantiation: The configuration was invalid
 
Last edited:
could you provide your webauthn settings (feel free to censor them, but if you do, do so in a consistent manner!)
 
also please provide "pveversion -v", thanks!
 
could you provide your webauthn settings (feel free to censor them, but if you do, do so in a consistent manner!)
Thank you - I forgot to update the id and rp values in the WebAuthn configuration file at /etc/pve/datacenter.cfg
What confuses me is that previously, everything worked fine when accessing the GUI with both the IP address and the domain name — even with an incorrect configuration. Is it possible to configure WebAuthn so that logging into the GUI works with both the domain and the IP address?
 
the upgrade to Trixie brings a new version of the webauthn library we use, and it got stricter in a lot of places..
 
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the upgrade to Trixie brings a new version of the webauthn library we use, and it got stricter in a lot of places..
I found that despite having my WebAuthn MFA disabled it still prevented me from authenticating via the PVE Android app and a third-party app I use. Only after deleting the WebAuthn option did it allow me to login with the apps.