I am not able to use more than 2 concurrent connection for RDP through Azure Bastion service. By default it should be 25 [ https://learn.microsoft.com/en-us/azure/bastion/bastion-overview#limits ]. Azure servers only support 2 concurrent RDP sessions in reality, and these MUST be from two different user profiles, so I was unable to have more than 1 Bastion session per user profile on the Virtual Machine.
Any way I can achieve multiple concurrent connection like we used to have back then in Win Server 2003 remote terminals?
Although it is true that with the Azure Bastion can support up to 25 concurrent RDP, this is still dependent on the Azure Virtual Machines.
Azure servers only support 2 concurrent RDP sessions by default, and these MUST be from two different user profiles, hence the reason you will be unable to have more than 1 Bastion session per user profile on the Virtual Machine.
This behavior I believe is by design and is exclusive to Azure Servers from Windows 2012 R2 and above.
A Remote Desktop Service (RDS) license for your virtual machine server would need to be acquired for multiple concurrent sessions on the server, however, a workaround exists but this would last for about 120 days.
You would need to take the following steps:
This should restart your virtual machine server.
Once this is completed and you have set up the required number of user profiles, you should be able to have concurrent Bastion sessions on par with the number of user profiles set up on your server.