Thanks for your answer.
I oppe : here the tests you'd like to see what will happen.
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On AP:
Wireless: Enable
Wireless Network Name: test-01
Mode: 11bgn mixed
Channel: Auto
Channel Width: Auto
Enable SSID Broadcast
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WPA/WPA2/WPA3 - Personal(Recommended)
Version: WPA2-PSK
Encryption:AES
Wireless Password:4106
Group Key Update Period:0
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On PC Win 10:
Network & Internet
Wi-Fi
Show available networks
I see tst-01.
Connect automatically is checked.
Connect.
Enter the key: 4106
"Do you autorise other PC":
yes
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A few seconds later:
test-01 - Connected - secure
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Some other checks:
ipconfig is fine: 192.168.0.101
On AP:
wireless statistics: I see the pc
DHCP client list: I see the pc
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I go on
Manage known networks
I see test-01
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I come back to wi-fi (Show available networks and so on)
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On AP:
DISABLE SSID Broadcast - Save
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On PC:
I dont' have touched anything...
Wi-Fi : on
"test-01 - Connected - secure" has deasappeard
ipconfig don't show IP address for wireless card
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On AP:
wireless statistics: the pc is not here
DHCP client list: the pc is not here
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On PC
Manage known networks
test-01 is here
I come back to wi-fi (Show available networks and so on)
Show available networks
I see Hidden network - secure
I dont' try to connect.
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On AP:
ENABLE SSID Broadcast - Save
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On PC
PC connect automatically to the wifi network test-01 without doing anything
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PC win 10 for tests is a little bit old, without updates. Prehaps is it the problem.
I'll try to find a more recent and updated PC.
Thanks for your help.
Best regards.