Yes, I think so, too. It turned out that the this kind of 2-digibox linked to each others is VERY sensitive for having the same bouguet / other settings in them. When I was trying the Enigma-TV for the first time, I also checked the new channels - and this caused the Solo to drop out from the link. The company I got this one, told me that I should make ftp-bouguet transfer to get it back again. Äh, complicated.
Enigma-TV just use the stream function from your box and block the used tuner during the stream. As soon the stream is stopped, the tuner is released. Your issue is related to something else.
I have another digibox - VU+ Zero that was able to connect to the first digibox and control it. After I started the Enigma TV server for the first time, this connection between the two VU+'s vanished - and I haven't been able to re-establish it.
Normally when you properly disconnect from any client application, the Server should stop the stream and give hand back to your Dreambox. What client app are you using ?
I just realized that when I installed Enigma TV (2.0.0.5), and connected it to my Dreambox, I can't use my other Dreambox to connect to the first one at all. Not even if I close Enigma TV. It looks like that the port/access (?) remains reserved for the Enigma TV?
How can I log off from the Dreambox with my Enigma TV?