@Paul_FM Unless BT provided you with a full set of IP configuration data (static IP), you will almost certainly need to keep DHCP on.

@justcurious Thanks I understand your issue more clearly now. Unfortunately, my local ER605v1 is still undergoing memory leak testing at this time and I can't really mess up the test which has been...

@SP_Jack Hi, my suggestion is to fix (consciously set) the 5.8G radio channels of your APs that participate in the meshing. This is particularly important if you use the ethernet port on meshed nodes...

@Paul_FM Also check your memory usage stats on the ER7206 each day...DHCP is often one of the first processes to crash when memory is constrained (at least with the ER605). You may just be hitting a...

@justcurious There is a FAQ on this as it's not obvious (pay attention to Step 4): https://www.tp-link.com/us/support/faq/2814/

Correct, you are re-IP ing when you switch between customized sSSID (different VLAN) AP and the standard config APs. The only standard way to update a client's DNS setting is via DHCP, which would...