Low WiFi AC Connection Rate

[Val D.]

Can anyone explain how can I fix it, please?

If you provide more information about the ISP device, router, clients, frequency band, channels, etc... probably.

 

[Mot_ikswon]

If you provide more information about the ISP device, router, clients, frequency band, channels, etc... probably.

Oh, that's great. I'm little busy now, will reply with info later. Thank you!

 

[ColinTaylor]

I think my router is working correctly but as you suggested my client devices somehow can't connect using its full capabilities.

@Kross888 Please see this thread for some more information.