I have 5 XE75 Pro units placed throughout my 2600SF 2 store home.  I am having 2 consistent issues.

1. Periodic slowness and buffering when web browsing or streaming.  When I check my ISP speed and latency when the issues occur, speed and latency are both OK.  9ms latency and speeds of 900MBS or better.  I have optimized regularly, but issues still occur.

2. Some of my devices refuse to stay connected.  To reconnect I must unplug the router and all deco nodes, wait, then re-plug in each.  A reboot will not solve the problem. I have to do this weekly to keep all of the connections going.  One of the devices is older and requires 2.4 Ghz, but the others are newer model HP printers.  I have changed any settings that seem to make sense, but I can't get to the bottom of it, and I am getting frustrated.

Any suggested fixes on both or either issue?

TIA