EAP245 V3 slow speeds after running for few hours
I purchased 3 EAP245 V3 couple weeks ago. I ceiling mounted them all , one on each floor of my house. I get awesome speeds for few hours of them being powered on, say 3-4 hours sometimes less. Speeds I get in the first few hours are between 500-600Mbps on my pixel 3xl and after few hours it drops down to under 200Mbps. Between this drop there is no change in how spectrum looks using wifi analyzer. Same amount of wifi signals using same channels, then my question is why I get awesome speeds before and it really sucked after few hours when there is no change in the spectrum or devices connected to the access point. All the AP's are set for Auto Channel on 2.4 and 5GHz. I am not too worried about 2.4 but 5Ghz really bothers me.
I have run various wifi analyzers and can see couple other neighbours wifi using the same channel but not overlapping as they are all 80Mhz. Their signal strength is ofcourse weak since they are far. I easily get between 40-50dBI on all my devices around the house. I can also see large amount of Tx dropped packets for each Access point.
The ping/latency averages between 15-20ms with great speeds (500-600Mbps) in the first few hours of it being powered on. After 3-4 hours , ping averages around 100-200ms and speeds under 150Mbps. I am closely monitoring the spectrum using wifi analyzers and I dont see much change before and after. So it's definately an issue with these AP's
I sent a support request but never got any response. I can still return the AP's back to amazon but would like to keep them as they work good when they do. I hope there is somewhere a firmware bug and could be fixed easily. Please advice.