@TinnyTimmay I ended up getting a replacement under warranty. They just got my unit today, so I would have to wait a couple days/weeks to get the replacement unit. Thk God it broke while it was still...

@TP-Link Hello. I have a XE5300 (US 2.6) node that is stuck in yellow since last night. All additional nodes are fine. I have attempted two firmware upgrades using the latest available firmware...

I have performed the firmware upgrade 3 times on one of my XE5300 nodes and the yellow liight is still steady. Does anyone else know about any additional troubleshooting? Thanks.