We have E600 in our office and every single day at exactly time 16:25, clients start to have problems.
Some clients have problems with download only. They are connected via 5GHz to AP with good signal and they are working fine until 16:25.
Only some of the clients have problems, some clients are working fine as usually. On dashboard I am monitoring traffic and there is nothing going on. It seems like packets are droping via WiFi.
When there are problems, I tried to reboot AP and problems are gone.
We are running 3.8-r3.