Upgrading Deco x55 to Firmware 1.6.1 causing Deco to reboot randomly

[GaryStimson]

Problem

I upgraded the Firmware last night and since then the Deco HA integration states it was unable to connect and will retry. This happens indefinitely and then every so often the Deco router reboots. Its like its performing a Denial of service attack on the router. I've turned off and disconnected all other network devices except my laptop and router is stable. I reconnect HA and router is unstable. I disable the Deco Integration and router is stable again. I reenable the integration and Deco again reboots.
Any ideas?

TP-Link Deco Version

1.6.1

Router Model

Deco X55

Debugging Information

Could not see anything in Deco logs and the integration simply says failed to authenticate and will try again. I've checked and double checked the authentication details and they are correct.

[GaryStimson]

I assume no one else is experiencing this or seeing this after 2 weeks of no activity?

[zewlak]

Same situation here. After debugging for a week, blaming other devices to cause this I've stumbled upon this thread and that's it! Thank you so much for a clue @GaryStimson, I've been going crazy over this.

I upgraded the Firmware last night and since then

Not sure if the X60's firmware upgrade is the reason in my situation but I've noticed problems after moving my HA instance from debian server to Proxmox HA OS instance. Before then it was working as a charm.