f5fpc unable to connect on Ubuntu 25.04

I’ve been using the f5fpc client on Ubuntu to connect to my company’s VPN for the past two years without issues.

However, I recently stopped being able to connect. In my syslog, I’m now seeing these messages:

kernel: netlink: 'svpn_x86_64': attribute type 6 has an invalid length.
kernel: netlink: 'svpn_x86_64': attribute type 4 has an invalid length.

I’m not sure whether these messages were appearing before, or if they started after I upgraded from Ubuntu 24 to Ubuntu 25.

Current setup:

• f5fpc version: 7253.2025.0725.1
• Ubuntu 25.04

Has anyone encountered this issue, especially after upgrading to Ubuntu 25?