udp connection problem (TCP 8080 working)

Tobbe

I can connect using TCP 8080 but when I am trying UDP 1194 it fails to connect (TLS error).

I have tried closing Windows firewall with no success.
I have router RT-AC87U.

What can the causes be?

Have set up the VPN like this: https://forums.openvpn.net/viewtopic.php?f=6&t=23348&p=67640#p67640

Tobbe

I have tried add

mssfix 1200
tun-mtu 1200

in the client and server config with no success.

Tobbe

Any ideas to fix this?