[Google Home Assitant]Loosing connection

It seems that the OpenHAB connector keeps losing connection with my Home Assitant / Google Home App.
When I issue the command: “OK Google, Sync my devices”. I get the response that the accountmanager needs to sync the devices, and that there are no devices found.
When I unlink and relink the account, the devices pop up, but as soon as I change something and issue the command to sync… same thing happens.
Anybody else got this problem?