Hey Guys, This is going to be another one of my strange Network problem threads. Basically I have an Untangle Router/Firewall setup with Open VPN. I also have an ASUS AC66 Router with Open VPN and also a Server 2012R2 setup with SSTP VPN. Now if I take the same Server and the Same client and place them on either side of these 3 setups: Server --> Untangle -OpenVPN tunnel--> Client - TV FAILS Server --> ASUS AC66 Router - OpenVPN tunnel --> Client - TV Works Server --> Server 2012R2 -- SSTP VPN Tunnel --> Client - TV Works (Please note I have somewhat simplified my network here. But for the purposes of this its easier to describe as above. Note that full internetwork routing works on all 3 setups. Everything from File sharing / DNS / RDP. Basically nothing but MP is having any trouble in this network. (The range of things I have tested to work go from Video files from a file share / Remote management tools SSH/Server Manager / RDP and many more. Even used Telent to connect to various ports MP uses)) Now the obvious answer is that Untangle is blocking something. And I am sure it is, I just cant figure out what. When looking in the UT admin pages it has very detailed reports on all traffic going through, and it logs anything it drops / blocks. Nothing is recorded as being dropped or blocked. I can open Media Portal fine, view the TV guide and see whats on, I can even schedule things to record and also delete existing recordings. But If I try and watch either live TV or a recording, MP will lock up. Have to end-task it. Sometimes it recovers itself, but only after a long time. Strangely if I manually start a live TV stream and then open this over VLC, that works fine too. So RTSP over 554 is working. I cannot seem to work out what the problem could be. I have attached 4 logs. 1 set of MediaPortal + Error for a working connection over the 2012R2 SSTP tunnel and 1 set over the failing Untangle Open VPN tunnel.