This is my "stable" use all the time device so only Extras is enabled.
I believe KP51 will be promoted soon anyway so I can wait.

I remember why I haven't tested AIS, it was due to the reports of poor battery life a while ago. Does it still poll the hardware all the time?

I can't find any reports of issues with wifi-switcher, if I knew the issue exactly I am hoping it maybe possible to modify wifi.sh. That's if AIS is a no go.

As for the original issue I have changed my wireless channel from 13 to 6, it maybe possible 11-13 are unstable as mentioned on your post in AIS thread.
I believe either 1/6/11 are the best channels to use as they don't overlap.
I used 13 originally due to no connections in my area use that channel (possibly due to others having AP's only capable of 1-11 global market)

I wonder if being connected with poor signal strength to channels between 11-13 causes the issue?
Or maybe an issue with my router? WAG200.
These theories seem to correlate with the timeline of events that happened to me.