Did you notice that the new module enables an additional network band?
It might be that the entire stack of related software was upgraded as well.
There seem to be a disconnect between WLAN state reported in Nickel and KSM!
I had luck with the following procedure:
- enabling the WLAN in KSM,
- switching to Nickel with WLAN enabled,
- as Nickel reported WLAN disabled I had to enable it here as well;
- now I was able to scan networks, enter password and connect to the WLAN,
- at this point I switched back to KSM, and I found there my WLAN network stored in the manage networks' dialog;
- after the reboot the KSM reported WLAN enabled and
- I was able to connect to the WLAN from KSM (I did switch it off and on "with DHCP" once during testing so this might be required as well) but,
- after disabling the WLAN from within KSM and switching to Nickel, Nickel reported WLAN is still enabled and I had to switch it off there as well.