updated WifiClientEnterprise example

[martinius96]

Added to program:

• counter
• auto restart on unsucessful connection or authentization timeout (30 seconds)
• changed HTTP GET connection

Tested under boards:

• ESP32 DevKit V1
• ESP32 DevKitc V4
• Lolin32

Tested version of Arduino core

• June 2018

[virat92]

Thanks for your code,
i am using ESP32 DevKitc V4
getting error
E (1436) wpa: Method private structure allocated failure
Stack smashing protect failure!
abort() was called at PC 0x400fab73 on core 0

How can i resolve it.

[martinius96]

@virat92 Hello.
I am using same board without any problem.
I think problem will be in version of Arduino core. I am using from June 2018. Newer versions have some problem at connection to Enterprise networks after some update that was after June 2018.

I am using board on Eduroam network at University under auth. methods PEAP + MsCHAPv2. Eduroam networks are under FreeRADIUS servers, I haven't any problem at connection to them.
I had same error when I was trying to connect to my Zeroshell RADIUS server at home, it was using methods PEAP + MsCHAPv2, i had same error + HANDSHAKE timeout.
I think you are using different network (not Eduroam) or you have too old, or too new version of Arduino core.

I haven't seen yet sucessful connection to any other network, only to Eduroam under Enterprise (802.1x) yet.

[virat92]

yes i am not using eduroam network, i am trying to connect corporate network with PEAP method without certification.
Same configuration i am using in my phone and its working.

Anyways thank you for your reply.