WiFi icon glitch

Hi again,
I’ve a strange wifi glitch (bug?, I don’t really know). Freshly installed NixOS, stable branch, no modification about network configuration, both gnome and kde indicates that I’m connected to my wifi network but I’ve no access to internet. Well that’s not true tho, I can access internet without any problem but the icon remain as if I’ve some connection issue and it’s very annoying! Can someone help me understand where could lie the problem? I don’t even know where to check, never happened before on other distro but it’s here in NixOS.

Thanks in advance.