@Nedas 

Hi,

Can you please provide some actual numbers for your Internet plan's speed and the Archer C80's transfer speed?

Furthermore, is the client device you measure the transfer speed on connected via Ethernet, 2.4 GHz Wi-Fi or 5 GHz Wi-Fi?

  @woozle internet is 10mb/s i check the speed from wifi and from lan. I dont know how to check router transfer speed

  @Nedas 

Ok. Then maybe check some basic things first.

Unplug the Archer C80 from the Internet connection and instead connect your computer via cable directly to your Internet connection and then measure the speed you get and let us know.

Connect the Archer C80 to your Internet connection again and log into the C80's web management page. Once logged in click on the "Archer C80" pictogram and then check the "Ethernet Status" of the "Internet" connection. Does it say "1000Mbps Full Duplex" or something else?

  @woozle 

  @Nedas 

Ok, I see.

Can you please still measure your Internet speed with a computer that is directly plugged into your Internet connection? (without using the Archer C80)

  @woozle 

  @Nedas 

If your Speedtest picture shows the speed you get with the computer directly connected to the Internet connection and the Archer C80 is not used, then maybe your Internet service provider did something wrong when they switched you to the "high-speed" Internet plan.

Was 10 Mbps also your Internet speed before you changed to a high-speed Internet plan?

  @woozle 

First internet was 2mb/s but i called to get us faster. They speed up, for first days was good but later i become 1.2mb/s but when i restart archer speed was coming back for 1 day.