Nighthawk M3 – Cannot change SSID for 2.4 GHz / 5 GHz without factory reset

Hi,

I have an issue with my Netgear Nighthawk M3.

I can only change the SSID for the 2.4 GHz and 5 GHz bands immediately after a factory reset. After normal setup, the “Apply” button stays red in the WiFi settings and changes are not saved.

Because of this, I cannot set the same SSID for both bands, which is important for my use case.

This is reproducible:

After factory reset: SSID can be changed

After normal operation: changes cannot be applied

Is this a known firmware issue, and is there any workaround or fix?

Thanks!