![]() Maybe your router isn't accepting UPnP requests to open the port and just needs to be rebooted or its configuration adjusted. Maybe your router has the port open, but your ISP is blocking the incoming traffic before it ever gets to you (some UK ISPs do this). Either way, the port appears "closed" to the outside world. If the port isn't also open on your computer, then the traffic is rejected at your computer. If the port isn't open at the router, then the traffic is rejected at the router. It's like your computer is bypassing the router and sits directly on the Internet, but just for traffic on that one port. The client must first connect with the server and then send or receive data. A passive open server listens for any client trying to connect with it. Since TCP is a connection-oriented protocol, it relies on a server in a passive open state. Under certain fairly common circumstances, the listening port may not be. TCP is connection-oriented while UDP is connectionless. In other words, it asks your router to accept and forward any incoming traffic marked as being for that port to the same port (usually) on your computer. The Soulseek client sets up a listening port to accept incoming TCP connections. What I can say is that Soulseek is like most any other networking client: When it starts up, it asks the OS to let "listen" on a couple of TCP ports, and it also asks your router (via UPnP) to open and forward corresponding ports. As it stands now Ive created a Port caalled 'SoulseekQT' type IPv4. Soulseek settings: port 50315 xFinity modem port forwarding settings. ![]() We don't know what you know about how computer networks work, and this isn't the place to explain it all to you. To include the servers, even though they have fixed IP addresses, and that seems. All my settings were correct, there was a problem with SoulseekQT, not my system and I was sure of it. Think and investigate and try different things. Anyway, after deciding to give QT another go, and spending ages trying to get port forwarding to work on it, I was cursing SoulseekQT once again, and upon discovering s comments started cursing too. TCP prioritizes data integrity and guaranteed delivery, whereas UDP prioritizes speed at the expense of data loss. Since we're tunelling, there's no difference between a TCP datagram lost on the open internet and a TCP datagram lost in a TCP tunnel or a TCP datagram lost in a UDP tunnel. UDP is a connectionless protocol, meaning that it’ll send data regardless of whether it can confirm the recipient is there to receive it. ![]() This discussion about unreliability of UDP is moot. There's no magic "just make it work" button. UDP is perferred for VPNs, the overhead is lower. ![]()
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