OpenManage Integration for Microsoft System Center - Problem with enrolling

Hello Everyone
For 2 weeks we cant manage the newest OMIMSSC v7.0.0.972 to work with our IT environment ( SCVMM 2k12 R2 ). Everything is configured based on PDF manual, GW, SCVMM and APP machine can translate FQDN names to each others. SCVMM and GW machines has unrestriced execution police configured ( to user and computer ) but when we are trying to enroll them using Portal machine - the enroll test passed but after use Enroll button we received information :

"SCVMM registration failed.

Registering SCVMM command failed, could be because of not able to get local host FQDN or Integration Gateway failure.
"

If we use test Connection button shortly after enroll the test wont passed again. 3-5 min later its again possibe to run Test connection with positive result . All time IIS on GW is avaible for viewing via website . All service on VMM running with domain admin credentials. Can anyone suggest any tip or solution how to find whats happening ?

Right now we have System Center 2012 R2 VMM with version : 3.2.751
OMIMSSC v7.0.0.972

I attach logs from our Admin Portal

dlci_adminportal https://file.io/KYWndS
dlci_console_addin https://file.io/V31ZR3
dlciappliance https://file.io/oJHUtd
dlciappliance_main https://file.io/4e4Kl8
genericonsole_rest_addin https://file.io/vfQlUF

. Thank you for support !