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I have successfully set up an Azure VM instance and configured the NSG to allow an inbound security rule for the RDP service over port 3389. I am able to connect to the VM using my laptop on RDP without a problem. However, a colleague of mine is not. We use the same public IP address (provided by our ISP), which has been verified.
He attempts the same connection over RDP and gets a message that he is unable to connect, so it doesn't get to the authentication stage at all.
This is not a load balanced instance. It is a single VM instance.
Any help or assistance would be appreciated.
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For whatever reason, we are now able to connect through the second computer, after about 24 hours. Not sure what fixed it, but it is now working.
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I am glad to hear that you were able to get connected. What OS and version are you using. You are likely limited on the number of RDP sessions, this depends on the specific OS. It is possible that you had a session still open that was preventing the second user from logging in. If you need more sessions consider using Azure Virtual Desktop which supports multi-session remote desktops.
If you still have questions, please let us know in the "comments" and we would be happy to help you. Comment is the fastest way of notifying the experts.
If the answer has been helpful, we appreciate hearing from you and would love to help others who may have the same question. Accepting answers helps increase visibility of this question for other members of the Microsoft Q&A community.
Thank you for helping to improve Microsoft Q&A!