@Kiemerle 

Good day,

Thank you very much for your time and patience.

Sorry for the delay.

May I know how long have you had the modem and when did this issue start?

And where are you located?

Did both 2.4ghz and 5ghz have the same issue?

When the Wi-Fi dropped out, what is the IP address and default gateway on the mobile device and are you able to ping the LAN IP 192.168.1.1 of Archer VR600v ?

What did you do to recover the connection, restart the modem, or disconnect the Wi-Fi and connect it again?

Please also refer to this link to modify the wireless channel on the Archer VR600V:

https://www.tp-link.com/support/faq/2794/

Thanks a lot.

@Kiemerle 

Good day,

Thank you very much for your time and patience.

How about now?

After changing the channels, Did the 2.4ghz and 5ghz still drop a lot?

If yes, please help me get the following information so later I could forward your case to the senior engineers;

1. What is the IP address when the mobile device dropped the connection? And are you still able to ping the gateway?---if you could use a computer to run the test, which would be much better;
2. Save the system log when the connection dropped; 

Thanks a lot.

@Kiemerle 

Good day,

Thank you very much for your time and patience.

Sorry for the delay.

What about the speed of the 5ghz? Is it also 1-6 m/s?

Before we changed the channel, how much speed you are supported to get?

Could you please try to download the Wi-Fi analyzer to find the most clear and less interference channel, but keep the channel width 80mhz for the 5ghz to have a look?

Thanks a lot.