Acess Transmission Jail from different network

I have 2 interfaces setup

em0 - 192.168.10.10
em1 - 192.168.20.10
Default Gateway on FreeNAS is 192.168.20.1


My main router is on 192.168.10.1
I have a second router on 192.168.20.1 (this has Open VPN, and connects through the main router)

I have setup the Transmission Jail on 192.168.20.11, and downloads through Open VPN work.

I can connect to the transmission GUI from a computer on the 192.168.20.x network, however
I want to connect to this from a computer on the 192.168.10.x network

I...

Acess Transmission Jail from different network