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Vinnny's avatar
Vinnny
Tutor
May 24, 2021

R6400 - Random 'Page cannot be displayed' since Firmware update

Ever since I did a firmware update to my R6400 router, I'm getting random 'Page cannot be displayed' on different websites, no pattern.

I tried it on other PC's in the house and i'm getting the same problem. It also happens when I try to enter the router. After it says page cannot be displayed, I click retry, sometimes once or sometimes I have to click retry multiple times, then finally it goes to the website.

I never had this issue before the firmware update. Here is my setup. I have a comcast gateway with wifi turned off and my R6400 connected to it with 2.4 & 5ghz. As a test, I turned on the wifi on the comcast gateway and when I connected to it I did not have any issues.

I also have AT&T and when I use their gateway I do not have this issue. So everything is pointing to the Netgear router since the firmware update. Please help me figure this out. Thanks !!

5 Replies

  • plemans's avatar
    plemans
    Guru - Experienced User
    May 24, 2021

    a couple things. 

    1. any time theres an issue after a firmware upgrade, I usually recommend a factory reset and then a clean install. by clean I mean don't use a backup configuration for the install. 

    2. Turning off the wifi doesn't disable the ISP's gateway's routing functions. It can still causes a double nat. 

    https://kb.netgear.com/30186/What-is-Double-NAT

    Have you tried the R6400 in access point mode? 

    • Vinnny's avatar
      Vinnny
      Tutor
      May 24, 2021
      I'm not sure it's a configuration issue only because I have this setup for 2 years without any issues until I just updated the firmware. The first thing I will do is a reset to factory. I will also check if the Comcast gateway will go into bridge mode. Thanks.
      • Vinnny's avatar
        Vinnny
        Tutor
        May 25, 2021

        Here's an update

         

        I tried factory reset but the problem still occured. I was able to find previous versions of the firmware, so I tried the one under the latest since I don't know which one I originally had.

        I had to go 2 down (R6400-V1.0.1.68_1.0.43) to finally solve the issue. No more 'page cannot be displayed'. Does anyone know what date that version came out ?