after updating the firmware to version 3.105 I have noticed that QoS bandwith limiting does not work properly any longer. I have reset the settings and did a reboot but to no avail. (I run the device in ‘Router’ mode.)
In the end I had to revert to firmware 3.104.
I have seen that the QoS bug has also been reported in regards to ‘GL-MT300N-V2’: