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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)   Th...
R7800
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?