First of all i want to share that i don't have much experience with Microsoft Azure, Windows Servers, etc. and i want to set up working environment in the cloud only (on premise i have only workstations and network devices).
What i have now is: Availability set of 2 Domain controllers hosted on Azure VMs, Site-To-Site connection from the office to Azure VNet (working fine), DNS configuration on VNet level - custom DNS, which is the IP addresses of the domain controllers (static). I managed to join local workstation to Active Directory that is hosted on the VMs. The problem is that i have to add (manually) the DNS servers on the local network of the machine to be able to reach and join to the AD. Now the workstations joined into the domain have issues browsing internet. I am sure that it is a DNS issue, but i don't know how to solve it.
Can someone tell me where i am doing the configuration wrong?