Model :

Hardware Version : Not Clear

Firmware Version :

ISP :

Hello guys,
I have TL-R480+ and i have 4 internet connection connected to my TL-R480+ v7.0

before i got full speed when i test the speed in "speedtest" website and everything was fine, Now i don't know what is happening! I didn't change anything on router settings at all!

Download speed was 110MB download / 95MB upload, Now the maximum speed i got is 70MB and 60MB upload.

The firewall is " OFF" and " Load Balance" is " OFF" too, I tried " Policy Routing" option to set with "WAN 1" but didn't work.

The Upstream Bandwidth and Downstream for all connections is: 100000
I tried to turn OFF and ON the " UPnP Function ".
For "ALG" option i used all "Enable"
" Traffic Control" is OFF
I know how to deal with TP-Link router but this time i gave up :(

The strange is when i test the connections one by one i got full speed 0, but when i use all connection together the speed doing down, I " Restored to Factory" and test again and the same result, I changed all cable to CAT6+ too.


As i said it was working perfectly and i didn't tech anything i didn't logged in the router even.

I checked the forum for sulotion but i didn't find any, i went to the guid too and following all steps but there is no hope,
Any idea how to take it back :confused:

Please guys don't answers with stupid answers like reboot the router or something like that, thank!