Tvheadend

Hi all,

I have a requirement to use 2 TVHeadend servers.
Server1 has a VPN connection and streams from an external source.
Server2 connects to Server1 and streams ok, but doesn't drop the connection after I switch the channel ?
I have to go to Status / Subscriptions and drop all connections.

Server1 HTS Tvheadend 4.3-2040~g604d81a29
Server2 HTS Tvheadend 4.3~f32c7c5

Is there a setting that can be set to drop the connection ?

Thanks for any help.