Try to add this config line to /etc/config/wireless under config wifi-iface :
option disassoc_low_ack ‘0’
You can do this via SSH. Connect to the router using SSh.
Password: admin01 (or new WebUi password)
To configure via SSh use vi editor.
root@Teltonika:~# vi /etc/config/wireless
In order to edit the file, you have to be in insert mode. Press i
In order to get out of vi, you have to be in command mode. Press [Esc] (the escape key).
Then write one of the following command:
:x - exit and save.
:q! – exit without saving.
Then reboot router.