[ESET MDM -Communication failed.please check your internet connectivity]

 

Hi guys ,

 

I recently added some devices to eset remote administrator for MDM

 

here my server details

 

ESET Endpoint Security    ESET, spol. s r.o.    2.0.154.0

ESET Remote Administrator Agent   ESET, spol. s r.o.      6.4.293.0

ESET Remote Administrator Mobile Device Connector        ESET, spol. s r.o.      6.4.243.0

ESET Remote Administrator Server  ESET, spol. s r.o.    6.4.304.0

 

first i added new devices to  eset remote administrator and enroll the devices ,when im enrolling devices this issue popup..

 

Communication failed.please check your internet connectivity and try again (400)

 

 

 

.bt some 

devices are working fine.all are in the same wifi & i change the wifi bt still not working..

 

guys pls help me. this is urgent case i have

another 80 devices to add...