Ok thanks ,
I will watch and redo the wifi configuration
Locally it works at 90% with GCC
But from time to time the p4 becomes unreachable I have to reboot it or turn off / turn on the wifi
It display low signal ( Other wifi objects work without problems )
At the same place with my phone the wifi is correct

The big problem is with myghl
Locally I have between 50 and 60% success I think.
But with myghl from the outside, 90-95% of the time it does not happen and often I have the error : "Session expired. Navigate to ManageDevices and reconnect. "

I had to try many times this today and I only had to get there really only 3-4 times
And often when it works I can only consult 2-3 pages and then it crashes, I can not get any more

In "Wifi-Modus" option
Should we choose ("Client" or "Client & Access Point" ) ?

Thanks
Best regards, Stephane