@Aferian 

 

Hi,

 

Check at what speed the Raspberry has connected to the LAN port of the Archer C6. In case it only shows 100Mbps, then the Raspberry may not be configured correctly.

 

Raspberry Pi 4 is connected to the router via WLAN and my computers and phones are also connected to the router via WLAN.

  @Aferian 

I've googled a bit around and it appears that the Wi-Fi of this little Raspberry just isn't faster than what you get.
For example have a look here: www<dot>tomshardware<dot>com/reviews/raspberry-pi-4    (replace <dot> with .)

 

So you might need to consider placing the Raspberry near the Archer C6 and connect it via Ethernet cable instead.

 

  @woozle 

 

Where exactly it says that maximum WIFI speed for raspberry pi 4 is 100 mbps? Because there is difference between MBps and mbps.

  @Aferian 

 

Hi,

 

I won't post a screenshot of the Tom's Hardware webpage here, but if you scroll down to around 1/3 of that webpage it says they measured a 5-GHz throughput of "114 Mbps" on the Pi 4 and there is also a "Wi-Fi Throughput Benchmark" comparison chart below that with the same information and it clearly states "Megabits per Second".