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pseudo-nym's avatar
pseudo-nym
Aspirant
Sep 16, 2025

ERR_SSL_KEY_USAGE_INCOMPATIBLE NETGEAR Nighthawk(R) X4S R7800

Hello,

I can't connect to the GUI of my NETGEAR Nighthawk(R) X4S R7800 via several browsers  like Opera, Ecosia etc. and get the Error:  ERR_SSL_KEY_USAGE_INCOMPATIBLE

(Firefox works so far)

 

There are patches for several other devices regarding that issue as I read in this community.

Is there one as well for "NETGEAR Nighthawk(R) X4S R7800"?

I just installed the latest firmware now being V1.0.3.92

 

Thanks and kind regards

R7800

2 Replies

  • pseudo-nym's avatar
    pseudo-nym
    Aspirant
    Sep 16, 2025

    UPDATE:

    I figured out that the latest Firmware right now is  V1.0.4.96 but the GUI couldn't download and install it for unknown reason. So I downloaded it manually to install it via GUI.

     

    How ever the issue with the "ERR_SSL_KEY_USAGE_INCOMPATIBLE" still exists.

    Please if anyone has an idea for a fix!?

    • StephenB's avatar
      StephenB
      Guru - Experienced User
      Sep 16, 2025
      pseudo-nym wrote:

      How ever the issue with the "ERR_SSL_KEY_USAGE_INCOMPATIBLE" still exists.

       

      I am a bit confused, since the R7800 manual says the admin interface uses HTTP, not HTTPS.  HTTP doesn't use SSL. 

       

      I am seeing the VPN icon in your screenshot.  Does this issue only happen when you are connecting remotely through the VPN?  Or does it also happen locally with no VPN?