I have 3 Decos.  XE75 is primary with a X20 and X55 as remotes.  I have a reboot schedule weekly.  As of right now, I have 80 clients connected.  A majority are IoT (Wyze cameras, Light Bulbs, Switches, Plugs, etc).  Most of the time things are fine, but randomly, I will have issues with some IoT devices not being able to connect.  Sometimes my TV (Samsung S90C) won't have internet, but the Deco app shows it as a connected device.  Tonight, however, my PC suddenly doesn't have connection.  Deco app shows it as offline.  These things are always resolved by a reboot of the Deco, not the individual decives.   

My question is, why does this happen?  I set up the reboot schedule because before, it could be 2-3 weeks before my network goes wonky and my IoT devices end up offline.  But, even with a reboot schedule, things get weird after a day or 2, but not always.  I haven't had issues in months.  Is there anything I can do to mitigate this issue other than setting up daily reboot schedules?? 

Things I have tried include using Connection Preference on the IoT devices to keep them on 1 device and leaving the mobile devices to be able to roam.  I use the High Priority setting for important devices like phones and computers.  The only settings I haven't used are the IoT Network and Device Isolation.  I set the Bandwidth information to what I get from my ISP.  QoS is on.  Not using VPN, Static Routes, IPTV, DDNS, Fast Roaming, or NAT Forwarding.

Thanks for any help.