Disable secondary (5G) connection

magenta10597872 wrote:

When the Home Internet router connects to the secondary which is n71 band, I get horrible service. When the router is using only the primary, the service is good. Is there any way to disable the 5G connection?

 

It's strange that my 5G phone has excellent data speeds whilst the router is terrible. Perhaps it's using a different band?

It is strange that you want to block your secondary signal.  Most want it to increase their speeds:

You might try using tin foil to either force a switch to another 5G band, or maybe block the 5G altogether as shown in the following YouTube video: