Hello
@Colin Evans,
How's the pub business doing, I still have to visit yours as you are not really that far away from ourselves.
Anyway, nope, I have never ever had that issue with my Tenda MW6 mesh setup, and sometimes we have well in excess of 20+ devices connected to it (average about 15). I also have a 4 node TP-Link Deco setup here too, which does perform better but is my backup solution (currently turned off).
I setup our 4 node Tenda MW6 mesh solution in l2018 and it's never missed a beat, well not as you describe it anyway, once in a blue moon a node turns red, I just have to reboot it.. The LAN ip address has never ever changed, not even once, even though it is set to reboot itself every morning at 04:00. It works 100% perfect with B4A-Bridge, it always has done. B4A-Bridge connected to it and just works from the start of the day to the end of the day without any connection issues.
Screenshots below are from my phones Tenda app.
4 Tenda Nodes (One currently turned off)
Each node is also up to date firmware wise
View attachment 164975
I have mine set to bridge for my WiFI mesh solution
View attachment 164978
My settings
View attachment 164976
Some connected devices
View attachment 164977
Enjoy...