Is there an existing issue for this?

• I have searched among all existing issues (including closed issues)

screenshots or captures

Actual behaviour

This should show the username and password fields - but it does not.

Expected behaviour

This should show the username and password

Steps to reproduce

Configure a cellular interface with Protocol ModemManager

1. In Select Network : Interfaces and Edit the cellular interface
2. Change authentication type to PAP/CHAP

Additional Information

Hostname	OpenWrt
Model	DPX529-01
Architecture	ARMv7 Processor rev 1 (v7l)
Target Platform	mvebu/cortexa9
Firmware Version	OpenWrt 24.10.0 r28427-6df0e3d02a / LuCI openwrt-24.10 branch 25.014.55016~7046a1c
Kernel Version	6.6.73

What browsers do you see the problem on?

No response

Relevant log output