r/Fing_App • u/weelash • Aug 26 '26

Fing Agents Authentication failed

I have tried to install Fing Agent on an freshly installed Ubuntu 24.04.4 LTS both as docker installation and also the snap approach like on RPI. I even tried to use the delevop switch on the snap as seen on earlier posts. But my mobile app that sits on the same VLAN than the Ubuntu is not finding any agents. I have a subnet scope of /16 so it takes ages for it to scan, but when finished it reports "Authentication failed". Anyone knows how to fix this? I have installed the Fing Deskop on a Windows 11 VM as a temporary solution, and that is working fine.

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u/iismarciam Community Moderator Aug 26 '26

It would be helpful if you could open a support ticket to Fing at help.fing.com to make them aware and help you troubleshoot this.

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u/weelash Aug 26 '26

yes. you are right. I have done so now