I try to change the Mask on softAPConfig , to 255.0.0.0 , but still 255.255.255.0
The IP have change , but not the mask
this is my code
IPAddress ip(10,0,0,101);
WiFi.softAP(apssid,appassword);
WiFi.softAPConfig(ip, ip, IPAddress(255,0,0,0));
Thanks for your support