OpenVPN losing route to Client Transfer Network

[mschmitz]

Hi,

we setup OpenVPN for our mobile clients and everything is working fine. We are using 192.168.166.0/24 for our Clients to connect.
Sometimes our pfSense is losing this route entry:

192.168.166.0/24 192.168.166.1 UGS 0 1500 ovpns1

After losing this our Clients still can connect but no traffic can be routed.
Only a restart of the OpenVPN Server helps. After the restart this route is added and visible under Diagnostics -> Routes

Does anyone know how I can fix this?
Do want my clients to call me at night just to restart the openvpn server

Thanks and Regards

Markus