I have used the Deco and been very happy for about 18 months.  But in the last couple of weeks it has been losing internet connectivity.  The internet speed into Deco has been fine (200Mbps plus) but devices (Homepods, TV, Phones, Laptops) have struggled due to extremely low speeds to the devices.

Over the last weekend I updated the firmware to 1.5.3 but the issue seems to persist.  The new firmware has a Network Optimisation function.  After the issue occurred a couple of nights back I ran this, it said optimisation was required, which I did but it did not resolve the issue.  I checked the speed to the Deco, which was fast (200Mbps plus) yet I wasn't able to even run a speed test on my phone... the connection was so slow.  I did a reboot and everything was resolved.  Speed test on my phone was back to 200Mbps plus.

Some notes: I was in the same room as the Main Deco unit when I did the speed test on my phone.  The TV and Deco unit are very close (Deco is below the TV in the same room).  Both the TV and my phone were connected to the Main Deco unit.  There is a second Deco on the other side of the house with (admitedly) poor signal from the Main Deco unit.

Why am I having to reboot almost daily?

Thanks for any help!