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<blockquote data-quote="benjerry" data-source="post: 325493" data-attributes="member: 57133">After some study of Windows firewall log theory and ICMP protocol I discovered that the &quot;3 3&quot;&nbsp; stands for:ICMP Type 3: outgoing Destination unreachable&quot; Code 3: Port unreachable error. When the designated transport protocol (e.g., UDP) is unable to demultiplex the datagram but has no protocol mechanism to inform the sender.Indeed sometimes I have problems with connecting client to a TV stream (UDP?) from server. I can connect still to command port 31456 on server (I opened this port in windows firewall) and change channels, but tv streams are then not connected to. In that case I have to restart Mediaportal on client pc to make it work again.I can check option in control applet Window Firewall - tab Advanced - ICMP settings - Allow outgoing destination unreachable. At the moment only Allow incoming echo request is checked which is by default I guess..</blockquote>

[QUOTE="benjerry, post: 325493, member: 57133"] After some study of Windows firewall log theory and ICMP protocol I discovered that the "3 3" stands for: ICMP Type 3: outgoing Destination unreachable " Code 3: Port unreachable error. When the designated transport protocol (e.g., UDP) is unable to demultiplex the datagram but has no protocol mechanism to inform the sender. Indeed sometimes I have problems with connecting client to a TV stream (UDP?) from server. I can connect still to command port 31456 on server (I opened this port in windows firewall) and change channels, but tv streams are then not connected to. In that case I have to restart Mediaportal on client pc to make it work again. I can check option in control applet Window Firewall - tab Advanced - ICMP settings - Allow outgoing destination unreachable. At the moment only Allow incoming echo request is checked which is by default I guess.. [/QUOTE]

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