NETGEAR is aware of a growing number of phone and online scams. To learn how to stay safe click here.

Forum Discussion

jixxer's avatar
jixxer
Aspirant
Jun 03, 2024
Solved

RBR750 port forwarding stopped working

Port forwarding seemed to have stopped working on my router for my VPN server using port 51820. It is on the latest FW V7.2.6.31, it was working after update but suddenly stopped and hasn't worked since. I reverted back to old FW version and still doesn't work, so not sure what other solution there is.

  • jixxer's avatar
    jixxer
    Jun 05, 2024

    FURRYe38 CrimpOn 

     

    Seems like something changed on my ISP where they were giving me a private IP instead of public. 

     

    Solution

    Set DMZ and PF on modem to router, then PF from router to brume. 

     

    Thanks for all the help! 

25 Replies

  • What is the Mfr and model# of the Internet Service Providers modem/ONT the NG router is connected too?
    Be sure your using a good quality LAN cable between the modem and router. CAT6A STP is recommended. 

     

    Has a power off for 1 minute then back ON with the ISP modem and router been performed since last update?
    Be sure to restart your network in this sequence:
    Turn off and unplug modem.
    Turn off router and computers.
    Plug in and turn on modem. Wait 2 minutes for it to connect.
    Turn on the router and wait 2 minutes for it to connect.
    Turn on computers and rest of network.

     

    Is uPnP enabled or disabled? It should be disabled if you have set up any PF configurations. 



    • jixxer's avatar
      jixxer
      Aspirant

      FURRYe38 

       

      Quantum Fiber - model C5500XK

       

      I have ran the power off sequence for everything and nothing changed. 

       

      uPnP has always been on and never was an issue but also tried turning it off and still doesn't work with PF configs

  • Port forwarding relies on internet devices connecting with the correct public IP address (which is why the OpenVPN server bundled into Orbi routers requires creating a DDNS URL which the router keeps synchronized with any changes that the Internet Service Provider (ISP) made to the public IP address.

     

    Can you verify that devices attempting to connect are being directed to the current public IP address of the router?

     

    Which VPN server has been deployed on the LAN?

     

    • jixxer's avatar
      jixxer
      Aspirant

      CrimpOn 

       

      I'm running a WIREGUARD server through a gl-inet brume 2 router which is connected to NG router on the WAN port and using DDNS. 

       

       

       

       

      • FURRYe38's avatar
        FURRYe38
        Guru

        What happens if you put this "gl-inet brume 2 router" IP address it gets from the RBR into the RBRs DMZ as a quick test? 

  • Had this been working on prior version of FW? 
    Was prior version v.21? 

     

    • jixxer's avatar
      jixxer
      Aspirant

      FURRYe38 

       

      Yes it was working on prior FW which I also tried rolling back to and it still doesn't work. So might just be a brick now 

      • FURRYe38's avatar
        FURRYe38
        Guru

        If you rolled back to prior FW version, did you factory reset the system and setup from scratch and check port forwarding? 


        jixxer wrote:

        FURRYe38 

         

        Yes it was working on prior FW which I also tried rolling back to and it still doesn't work. So might just be a brick now