Meshed EAP225-Outdoor keeps on disconnecting from wired EAP620HD on OC200
I have an EAP620HD(US) v2.0 firmware 1.0.2 Build 20211025 Rel. 45439 connected to an OC200 v1.0 running controller 5.1.7 firmware 1.15.2 Build 20220323 Rel. 60717.
I have an EAP225-Outdoor(EU) v3.0 (firmware stated above) connected via Mesh.
The 225 adopts and connects fine but after a short time disconnects.
I have also tried firmware 1.0.3 on the 620 with the same result.
I have 4 of the outdoor 225's and they all behave the same way.
When I swap the 225 and 620 (i.e. 225 wired to OC200 and 620 connected by Mesh), it all works and stays connected as expected. I can't leave it this way as I need the 225 to go outside on a shed and the 620 inside to drive the outdoor 225 and all my indoor stuff.
Can the 620 be used to mesh with outdoor 225's?
Has anyone else managed to make this work?
Is this an issue having a 620HD(US) operating with 225-Outdoor(EU) units? (They were supplied by in-country suppliers in Australia but I am suspicious)
Any help appreciated.