Check \\192.168.1.1\volume1 in windows without browser.

Can you tried by the IE? or \\192.168.1.1\volume1

What do you mean "clone wifi network"?

If you have selected "Access shared storage with password" you have to settings login and password in User Account Management area.

Give me screenshot from USB Settings. Is the router sees the drive?

I think that problem is in your electric installation. You can check internet speed when adapters are close to each other (in this same room). Very often in electric installation are very large...