I have a problem with EAP670 like here 

https://community.tp-link.com/en/business/forum/topic/617924?sortDir=ASChttps://community.tp-link.com/en/business/forum/topic/617924?sortDir=ASC

I'm also have successfully installed an EAP670 via a POE switch (TL-SG1008P) by cat 6 cable and all is working well but uplink show only 10 Mbps with Full duplex in Omada 

I tried to reset it via Omada and using button on the EAP670 and also tried reconnet by patch cable 1m - didn’t help anything 

I thied to reset and setup to another Omada network  - didn’t help either  

I have two another EAP670 in the same network  - works fine 1000 Mbps with Full duplex