RT-AC5300 386.13 inside speedtest not good, also error at start speedtest, router gives the correct speed but not the test inside, why?

[Godley]

hello
RT-AC5300 386.13

I have 750mb download and 60mb upload, the router is shortly not happy with the firmware or higher speed i noticed.
It gives me high speed on cable and wifi, but the speedtest inside the router on every server comes not higher then 420 or so, get also a error when running the speedtest:
"Bericht
De test van de internetsnelheid kan niet worden uitgevoerd. Controleer uw internetstatus op de Netwerkkaart voor meer informatie en probeer het later opnieuw."

UK:
Message
The Internet speed test cannot be performed. Check your Internet status on the Network Map for more information and try again later.

What can be going wrong in there?

Thanks, Willem

 

[ColinTaylor]

This is a well known limitation of the router's hardware when using a fast internet connection. Don't use the router's speed test. Run the speed test from a PC.

 

[Godley]

Ok, thanks for the tip, poor hardware in that case for a AC router