I did as you told me. I put the extender next to the router, almost at zero distance. The percentage still does not exceed 70 percent.

What is half-duplex? Is it an option that can be disabled? Excuse me, I am new to this field

Thanks for the reply But as I told you When I return the old vr400 modem I get full speed With the same extender Are there any special settings for the vx1800v?

Hi Excuse me my English is weak I have a vx1800v router And a re505x range extender My internet speed is 100 megabytes per second The router gives me a speed of 98 The extender does not exceed 65...