T57W randomly rebooting

[mmarino51589]

Hello,

I recently (last 2 months) purchased a new T57W with power supply from Amazon, currently on firmware version 96.86.0.70.

The phone will randomly power off and restart (often times when on the actual phone). There doesn't seem to be any pattern to the time of it happening. I also have an EXP50 attached, and have tried removing it to see if the power draw is an issue with the sidecar, but the issue persists. The phone is connected via Ethernet to a non-poe switchport

YeaLink Power Adapter: YLPS052000B1-US
Input: 100-240V ~ 50/60Hz 0.5A
Output: 5V 2A


Things I have tried:
-Factory Reset
-Roll back firmware
-Disable IPV6

Not that it should matter, but my SIP account is configured to use my QuestBlue extension, and there is no auto-provisioning service from this particular provider. The phone itself works fine (when it's on) and there are no issues with connectivity.

Any ideas?

Thank you