Flush DNS cache failed and Backup routing table failed on Ubuntu 20.04
I am able to establish a VPN connection, but I immediately get disconnected from the VPN a few seconds later. I believe that connecting to the VPN is causing my WiFi to disconnect, but I am not sure if this is what's actually happening.
I am on Ubuntu 20.04.6. I downloaded the Debian client directly from the Fortinet website. I have been able to connect to the VPN fine on Windows/Mac computers, so I don't think it's an issue authentication issue, especially since I am passing the authentication phase on the Linux.
So far, I have tried to disable IPv6 and the local Ubuntu firewall, but I am still experiencing the same issue.
Here are the device logs showing the errors for "Flush DNS cache failed" and "Backup routing table failed"
20230405 21:01:00.765 [sslvpn:DEBG] dns:149 Restart DNS service successfully. 20230405 21:01:00.767 [sslvpn:DEBG] dns:161 Flush DNS cache failed. 20230405 21:01:00.767 [sslvpn:DEBG] route:99 route backup START 20230405 21:01:00.767 [sslvpn:DEBG] route:109 No gateway found for 22.214.171.124 20230405 21:01:00.767 [sslvpn:DEBG] route:127 No gateway found for [VPN IP] 20230405 21:01:00.767 [sslvpn:DEBG] route:151 route backup DONE 20230405 21:01:00.767 [sslvpn:EROR] vpn_connection:1296 Backup routing table failed
The Fortinet Security Fabric brings together the concepts of convergence and consolidation to provide comprehensive cybersecurity protection for all users, devices, and applications and across all network edges.