Member Avatar for StandardsDT

Hello I just did a scan on my computer for any open ports and it reported back that there are none. I'm trying to get Azureus to connect properly but I keep getting the following NAT Error

NAT Error - Connection to (your computer) refused.

I've tried several different ports and nothing seems to work. I tried setting up a static IP but unfortunately that did not work. I even have port forwarding set up on my router and that is not helping either. I've also tried shutting off my firewall for a second to see if that does anything and no go. I'm running Windows XP Media Center, Linksys Netgear WRT54G Router and COMODO Firewall Pro. Any help is greatly appreciated as I have ran out of ideas to find away around this problem.

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  • Latest Post Latest Post by DimaYasny

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For : a quick, practical checklist that narrows the problem by layer — application, host firewall, router, ISP — is the fastest way to find why an external scan reports no open ports.

First, confirm the torrent client is actually listening on the port you think it is. Run these on the PC and map the PID to the process:

netstat -ano | find ":<port>"
tasklist /FI "PID eq <pid>"

If you do not see a LISTENING entry for that port, Azureus (or Java) is not accepting incoming connections — check Azureus’ network settings (incoming port, binding), then restart it. If it is listening, the next blockers are host- or router-side.

On the PC: ensure COMODO and Windows firewall have explicit allow rules for the Azureus executable and for the chosen port/protocol. A temporary DMZ test (place the PC in the router’s DMZ briefly) will tell you whether the host firewall is the culprit — do not leave DMZ enabled long-term.

On the router: verify the forwarding rule points to the exact LAN IP the PC currently uses. Use a DHCP reservation rather than a static set outside the router’s range to avoid address mismatches. Forward both TCP and UDP (BitTorrent uses TCP and sometimes UDP for DHT/uTP). Reboot router and PC after changing rules. Remember that port checks must be made from outside your LAN — scans from inside the same subnet often show no forwarded ports. Use an external machine or service (or ask a friend) to test with telnet to your externalIP:port.

Finally, check for double-NAT/CGNAT: if the router’s WAN IP is a private address (10.x, 172.16-31.x, 192.168.x), the ISP is probably using NAT and you cannot receive inbound connections without their help — contact the ISP. If all else fails, the usual ordering of causes is: client not listening, host firewall blocking, wrong forward (IP/protocol), router/NAT issue, ISP blocking. Ignore the alarmist advice from ; it does not help debug the issue.

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Member Avatar for tom curren

Your PC is SECURE and now you want to become a slave on a Peer to Peer network???
WHY?
SIMPLE: Pick up a second hand POS PC and don't load any AV or FW software and put the Azureus on it. Then when it gets blown up you haven't lost squat. But if those Feds show up because some perv posted Kiddie Porn on your PC, RUN, keep running.... and don't look back.

Member Avatar for DimaYasny

tom, what the hell are you talking about?

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