my dell laptop does not see my wifi Latitude 3340/ Wireless AC-7260/ TpLink Archer ax21

Hello

My dell laptop Latitude 3340 does not see my wifi TpLink Archer ax21.

Latitude 3340/ Wireless AC-7260/ TpLink Archer ax21. 

But it sees many other networks and connects to them. And it works well.

Latitude 3340

Memory: 8 GB

Processor: Intel(R) Core(TM) i5-4210U CPU @ 1.70GHz[Cores 2] [Logical processors 4]

Operating System: Microsoft Windows 10 Pro

Intel Dual Band Wireless AC-7260

Wifi router TpLink Archer ax21 

All driver updated  via Support Asist Dell.