Hello,
Thank you for your question.
First of all, for testing purposes, I could suggest to temporarily disable the router‘s firewall. To do so, you would need to log into the device‘s CLI. You could use PuTTy (or another SSH program) to do so. Use this command to disable the firewall: /etc/init.d/firewall stop
To start the firewall once again you could reboot the router, or use this command:
/etc/init.d/firewall start
After this, you could try accessing your end device through your preferred port. If you are able to reach the end device, then I would suggest trying to set up the Traffic rule like this:
- Source zone: WAN;
- Source port: 55002;
- Destination zone: LAN;
- Destination port: 55002;
- Action: accept;
If the end device is still not reachable, you could try disabling the firewall on the end device's side.
If you have any more questions feel free to ask.
Best regards,
Justas C.