Wondering if theres anyone who can help? If you have a Type B HH6 if you can check to see if you have a "seperate bands" toggle as I dont seem to have this no more?
This may help
so you have a HH6/SH1 not SH2 and you cannot now split the 2.4/5ghz networks? that is a very recent change and surprised that BT would go back and make change to the older HH6