Community Ed. client v2.5.7 randomly disconnects for one user ONLY on Ethernet
Posted: Wed Sep 14, 2022 3:17 pm
Hello,
I've been working with one of our users who has been experiencing client disconnects ONLY when connected via Ethernet. This behavior is not present when the user is connected to WiFi. Looking at the server logs, I can see that the user successfully authenticates with the OpenVPN server and remains connected for close to two hours, but then randomly disconnects due to an authentication failure:
I'm struggling to understand why the user would be able to connect and remain connected for a significant amount of time, only to be kicked out for authentication reasons. We have dozens of users utilizing this same authentication method, yet the issue is only present for this one person. I've already fully moved them to a new machine, and the issue is still present, so it doesn't appear to be machine- or client-related, though I would expect to see more widespread issues if the problem was server-side. It's also worth noting that when the user is disconnected, it prevents all inbound and outbound internet traffic from reaching their destination. So, for example, if the user is in a conference call, the OpenVPN drop causes not only disconnection from the call, but prevents the user from utilizing any network (internet or private) until fully disconnecting the client. When the issue is observed, it appears as though the client enters a 'standby' state (yellow icon) where it is neither connected nor disconnected. Can someone please assist in shining some light onto the root of the issue, or help put me on the right path? Your help is much appreciated!
I've been working with one of our users who has been experiencing client disconnects ONLY when connected via Ethernet. This behavior is not present when the user is connected to WiFi. Looking at the server logs, I can see that the user successfully authenticates with the OpenVPN server and remains connected for close to two hours, but then randomly disconnects due to an authentication failure:
Code: Select all
Sep 12 11:33:18 openvpnSRV openvpn[1292459]: xx.xxx.xx.xxx:57205 TLS: Username/Password authentication succeeded for username 'USERNAME' #indicating initial successful connection to OpenVPN server
Sep 12 13:27:37 openvpnSRV openvpn[1292459]: AUTH-PAM: BACKGROUND: user 'USERNAME' failed to authenticate: Authentication failure
Sep 12 13:27:37 openvpnSRV openvpn[1292459]: xx.xxx.xx.xxx:52273 PLUGIN_CALL: POST /usr/lib64/openvpn/plugins/openvpn-plugin-auth-pam.so/PLUGIN_AUTH_USER_PASS_VERIFY status=1
Sep 12 13:27:37 openvpnSRV openvpn[1292459]: xx.xxx.xx.xxx:52273 PLUGIN_CALL: plugin function PLUGIN_AUTH_USER_PASS_VERIFY failed with status 1: /usr/lib64/openvpn/plugins/openvpn-plugin-auth-pam.so
Sep 12 13:27:37 openvpnSRV openvpn[1292459]: xx.xxx.xx.xxx:52273 TLS Auth Error: Auth Username/Password verification failed for peer