MediaPortal 2.1

I’ve just updated mediaportal to 2.1 release.
I’ve also installed the MediaPortal 2 Spring of ’16 – TVServerKodi plugin v1.13.100.137.
It seems that kody (krypton release) is no longer able to connect to the mediaportal server as previously.
I’ve not changed any settings in the MediaPortal PVR Client.
My OS is W10.
Do you have any idea? Have I done something wrong?
Thanks
DjC