Clean Up of Client Disconnect

[cjhayes]

When clients manually disconnects from server, the server
doesn't "know" this immediately. Server I guess eventually
figures this out when the next key negotiation and handshake fails.

Here is the server log entries approx. 1 hr after client disconnect:

<VPN> TLS Error: TLS key negotiation failed to occur within 60 seconds (check your network connectivity)
<VPN> TLS Error: TLS handshake failed
<VPN> TLS Error: TLS key negotiation failed to occur within 60 seconds (check your network connectivity)
<VPN> TLS Error: TLS handshake failed
<VPN> TLS Error: TLS key negotiation failed to occur within 60 seconds (check your network connectivity)
<VPN> TLS Error: TLS handshake failed
<VPN> TLS Error: TLS key negotiation failed to occur within 60 seconds (check your network connectivity)
<VPN> TLS Error: TLS handshake failed
<VPN> TLS Error: TLS key negotiation failed to occur within 60 seconds (check your network connectivity)
<VPN> TLS Error: TLS handshake failed

Server is NetGear DG834G Router wDGTeam Firmware - OpenVPN version 2.1.1
Client is Win7 - OpenVPN version is 2.4.1

I have tried adding the option:
explicit-exit notify 5
to the client configuration, but it doesn't help...

This is not a critical issue, but would like to know a solution if one exists!

Thx...