Need confirmation my TL-WA860RE is defective

Need confirmation my TL-WA860RE is defective

Need confirmation my TL-WA860RE is defective
Need confirmation my TL-WA860RE is defective
Monday
Model: TL-WA860RE  
Hardware Version: V5
Firmware Version:

This device has been subject to periodic 100F heat for years, so I won't feel bad if it's broken, but I need confirmation before I go to the company that installed it to replace it. I have disconnected it from power for several minutes, reset it (twice). The lights blink in the following sequence: Power: 6 times. Power: 4? times, then all three lights go on briefly. That sequence repeats.

 

An insight into what this means is appreciated, but any definitive "Yeah, it's broken" is what I need before approaching the vendor. Thanks!

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