I recently installed an AX55 Pro as a OneMesh extension on the other side of my place. 

From what I understand, everything seems to be working fine except for when I'm in the router administration portal. 

I log in to the AXE16000 administration page, click on the Advanced tab, click on the OneMesh link, and click on the AX55 Pro button, but when I click the "Manage Device" button, I receive the error "Rejected request under RE mode."

Is this to be expected because its an extension? Or should I see deeper device settings for the AX55 Pro?

Hardware v.1.6

The firmware is unknown, as I can't get deeper device administration, but I believe I made sure the firmware was up to date before making it a OneMesh extension as it was recommended by the OneMesh set up tutorial.