EAP225 v3 intermittent throughput issues on 2.4 ghz with 5.0.7 firmware
I have two EAP225 v3 Access Points running the latest firmware 5.0.7 Build 20211026. Both APs exhibit intermittent bandwidth and/or throughput issues on the 2.4 ghz band at 20 mhz channel width. A reboot of an AP temporarily resolves the problem, but the problem then returns after about 3 days of operation. Both APs are directly connected to a TL R600VPN router through POE injectors. I have tested two android tablets and a laptop connected to the APs, and they all experience the issues.
When the AP is working properly with full signal at the connected device, I can stream live HD video from a HDHomeRun Tuner to the device with no issues. Pings of the connected devices are also very reliable and do not fail. When the access point is exhibiting the issue after about three days of operation, streamed HD video stutters and stalls on connected devices, and pings of a connected device will fail frequently, but not always. There is no indication that the devices are losing WiFi connectivity when the problem occurs, it is just that the traffic is not reliably getting from the wired Ethernet to the device over WiFi.
I have documented that this problem occurs on the 2.4 ghz band using 20mhz bandwidth, using channels 6 and 11 on the respective APs, but I am not certain it is limited to this configuration.
Given that I have two APs that are exhibiting the issue, that the issue is present regardless of what connected device I am using, and that a reboot of the AP solves the problem temporarily, this would seem to indicate a firmware bug or problem.