Few testers let me know, they were unable with connection to Eduroam network under PEAP+MsCHAPv2 methods.
They were trying many modifications. Solution is very absurd. 
Change board to STA mode manually. 
One tester from Italy was able to connect to Eduroam network under TTLS + MsCHAPv2 with that sketch too!

Sketch was tested and worked almost for all testers with that problem.