Set US as country

TL-WA7210N is able to cover 2km so if you use the device correctly you shouldn't get such short coverage distance.
So how did you judge how long the device covers?
Besides, TL-WA7210N uses build-in directional antenna with horizontal/vertical beam width 60/30 degrees. So you should be on the front side to be under coverage area.

M'y country is cote d'Ivoire and it is not un the liste but i choose Canada as country. The firmware version is 3.19.0 Build 140730 rel.58003n and hardware version WA7210N v2 00000000. After configuration i put it outdoor un area without obstacle and when i set my phone's wifi on, i go away front my TL wa7210n and afert that 98-100 meter i lose signal. Help me please whot configuration can'i use to perform my TL wa7210n?

okcos wrote

i put it outdoor un area without obstacle

How you deployed, only you know?
How high is the 72 deployed
Did you use down tilt (angle facing ground) cause the phone is used in the ground not at the height you deployed 72

I can Specify that i use my TL wa7210n without external antena. Ils it why it can't make more range? I'm i obliged to use external antena to have more range?

okcos wrote

I can Specify that i use my TL wa7210n without external antena. Ils it why it can't make more range? I'm i obliged to use external antena to have more range?

you ask a new one on post #6, but, you do not answer the questions #5
if you want my help, answer the questions.