In December my 3 Deco X55 routers were updated to firmware 1.4.0 Build 20240718 Rel. 44385.

Prior to this update, I had zero issues with connectivity. Since the firmware update, all 3 units drop out for approximately 10 seconds, multiple times per day. I've gone through the usual steps, rebooting the system, unplugging the modem, disconnecting Ethernet cables, but the issue persists. 

I have observed these disconnects to be on average roughly 8-10 times per day. 

Looking for some guidance. Am I able to flash newer firmware or am I able to roll back to the firmware prior to the update?  This has rendered my home network unstable and unusable. This is not what I expected when I bought into TP-Link. I need help with this. I would be willing to provide logs.