Error "Null is not allowed "

[dsanmartin1970]

Dear, good evening.
On an IPC-HFW1235S-W-S2 camera I cannot choose the wireless interface to set as default.
Below it appears an error saying "Null is not allowed".
The same error appears when trying to change anything in the camera's TCP/IP configuration.
The wireless interface can be configured under the WIFI menu, connects to the SSID without problems and takes the IP address from the DHCP server.
I have tried performing a factory reset and a firmware update, without any result.
Does anyone have any idea how to solve this problem?

 

[TonyR]

What browsers have you tried?

 

[tangent]

Try a different web browser or an incognito window. Something like an adblocker may be messing with the webpage.

 

[dsanmartin1970]

None of that works.
I tried Chrome, Edge, Firefox and Internet Explorer.
Also incognito mode.
Still giving the same error

 

[97JeepXJ]

Network-> TCP/IP -> IP Version -> change to IPv6

click Reset Defaults

Change back to IPv4

Should allow all parameters to be set without the error now

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