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Tvestra's avatar
Dec 22, 2021

V1.0.4.122_10.0.95 Update on R6400v2 kills lon in page

I applied V1.0.4.122_10.0.95 to my Netgear R6400v2 router yesterday. Now I can’t access the router configuration GUI. Everything else works OK, but I can’t log into the router now. The update completed and my browser displayed an “Unable to Connect” message. I did an nmap scan and it looks like the http/https ports are not open. How can I get this fixed? Will Netgear be putting an updated version out soon with directions on how to upload it? In the mean time can I reload the R6400v2-V1.0.4.120_10.0.91.chk file I have? I am running Ubuntu and my tftp client appears to connect to the router. Is anyone else reporting this problem?

30 Replies

  • you should try and re-apply the firmware with tftp and see if that fixes it, if not revert back to the previous firmware until another firmware comes out.

    • michaelkenward's avatar
      michaelkenward
      Guru - Experienced User

      Tvestra wrote:

      Will Netgear be putting an updated version out soon with directions on how to upload it? In the mean time can I reload the R6400v2-V1.0.4.120_10.0.91.chk file I have? I am running Ubuntu and my tftp client appears to connect to the router. Is anyone else reporting this problem?


      Is there any evidence that this is a widespread issue?

       

      Do any of these messages suggest the same thing?

       

      Search - NETGEAR Communities – R6400v2

       

       


      wcalifas wrote:

      you should try and re-apply the firmware with tftp and see if that fixes it, if not revert back to the previous firmware until another firmware comes out.


      Definitely a good idea to reapply the firmware. But TFTP is usually needed only if the standard approach does not work, unless it is the only way to update firmware. (That isn't clear from the first message.) Before playing with complicated stuff, why not just try the manual updfate?

       

      How do I manually upgrade firmware to my NETGEAR router? | Answer | NETGEAR Support

       

      The same strategy applies if you want to install an earlier version.

       

      Then again, it isn't obvious to me that there is anything wrong with the new firmware. The inability to access the router's GUI needs a  bit of investigation. For a start we don't know what happens when Tvestra tries to get into the GUI.

       

      I would troubleshoot that before doing any more damage.

       

      • Tvestra's avatar
        Tvestra
        Star

        I did the manual install V1.0.4.122_10.0.95. The update completed, but instead of displaying the routers web interface it displayed the attached message. Now when I try to log into the router it imedantly displays the same message. When I use nmap on the routers ip address the http/https ports are missing. Everything else is working.  the problem is, if you can't log on to the router, how do you apply an update. Looks like the tftp is the only option at this point. I have seen several posts compaining the they can't log on to the router after this update. Could Netgear have a bug?

         

  • Router model: R6400v2

    Firmware: V1.0.4.122_10.0.95

    OS: Windows 10 64-bit

    My router was working fine, right up to when I updated to the above firmware. When I tried to login to the router's GUI, I received the following:

     

    This site can’t be reached

    www.routerlogin.net refused to connect.
    Try:

    Checking the connection
    Checking the proxy and the firewall
    ERR_CONNECTION_REFUSED

     
    Nothing I did, short of doing a factory reset, fixed the problem.
    Finally, as a last resort, I did a factory reset and, lo and behold, I could access the router's GUI.
    My joy was short lived. I made a minor change (changing my time zone) and, lo and behold, I'm locked out of the GUI again.
    There is a serious problem with the above firmware update. I plan to download the previous firmware update, do another factory reset, then install the previous update.
    Hopefully someone from Netgear will read these posts and get this problem fixed.
    • michaelkenward's avatar
      michaelkenward
      Guru - Experienced User

      Hopefully someone from Netgear will read these posts and get this problem fixed.

      With just a handful of reports, it doesn't look like the usual firmware bug.That would usually show up with a torrent of specific complaints. (We have hand a couple of those lately.)

       

      We have yet to exhaust all of the possible reason for this problem and have yet to rule out issues at your end for example, I still see no answers to this earlier question:

       


      What modem (if there is one) in front of this router?

      It is there for a reason. Take this behaviour:

       

       



      Finally, as a last resort, I did a factory reset and, lo and behold, I could access the router's GUI. My joy was short lived. I made a minor change (changing my time zone) and, lo and behold, I'm locked out of the GUI again.  

      One cause for this can be a conflict between the router and the modem in front of it. Hence the modem question.

       

      Coming up with theories about what is going wrong is fine, but it helps to go through all of the standard troubleshooting steps before reaching conclusions.

      • Tvestra's avatar
        Tvestra
        Star

        After I applied the update the router's GUI at https://192.168.1.1 was not longer accessable.. See my previous post to see the screen shot. I rebooted the router and still no joy. Then I ran an nmap intensive scan to see what ports were open. The ports the web browsers use to acces the GUI are standard web server ports at either http (port 80) or https (port 443). Neither of these ports are up. That is why you can't get a log in. This is an internal issue with the router. If a modem issue suddenly causes a problem after a Netgear update, then Netgear has a huge problem and maybe it is time to consider another vendor. But I repeat myself, the standard web ports are not up so the web GUI will not be acessable until the router brings these ports back up.

         

         The the R6400 does not have port 80 or 443 up after the update

         

        I put my old WNR2000 router on the bench and ran an nmap scan and can see port 80 is up on that router.

        This is what it should look like..

  • Thank you Tvestra for discovering and posting that ports 80 and 443 are not open on the router after doing the firmware update to V1.0.4.122_10.0.95. It looks like the solution to this is to get the router to open ports 80 and 443 by doing a router reset and/or router reboots.

     

    See thread linked below, message # 17:

     

    https://community.netgear.com/t5/Nighthawk-WiFi-Routers/R6700v3-Firmware-update-V1-0-4-122-10-0-95-problem/m-p/2174695/highlight/false#M206781

     

    This has been solved on my R6700v3 router with firmware V1.0.4.122_10.0.95 installed.

    • PhotonX30's avatar
      PhotonX30
      Aspirant

      Reset & 1 hour router power off didn't help me.  I then reset and installed 1.0.4.20.  Now has GUI access.  I don't know what "security vulnerabilities"  this may have exposed, but at least I can access my router's settings while I explore other routers features and support reputation.