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When connecting to my Azure Web App protected by Azure WAF/FrontDoor, I cannot connect to the debugger, it seems like inbound port 4024 is blocked on the WAF/FronDoor. Remote debugging is enabled and outbound ports are open on the dev server. Any idea if this should be working or how to get this working?

Thanks.

Full error:

System.Runtime.InteropServices.COMException (0x89710023): Unable to connect to the Microsoft Visual Studio Remote Debugger named '*.'. The Visual Studio 2019 Remote Debugger (MSVSMON.EXE) does not appear to be running on the remote computer. This may be because a firewall is preventing communication to the remote computer. Please see Help for assistance on configuring remote debugging. at Microsoft.WebTools.Azure.VS.Operations.IDebuggerInternal120.ConnectToServer(String szServerName, VsDebugRemoteConnectOptions[] pConnectOptions, CONNECT_REASON ConnectReason, Int32 fIncrementUsageCount, IDebugCoreServer3& ppServer) at Microsoft.WebTools.Azure.VS.Operations.RemoteDiagnosticsSessionBase`1.ConnectToServer(String site, String user, String password)

JeroenP
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1 Answers1

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If you are using 64-bit you must enable the port 4025. For 32-bit you must enable the port 4024.

I also had this problem. I solved it by changing the Platform from 32-bit to 64-bit. Go to App Service -> configuration -> General Settings. Now change the Platform from 32-bit to 64 bit.

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Refer here for remote debugger port assignments vs 2019 & configure the windows firewall for remote debugging vs 2019

Refer for more info

Delliganesh Sevanesan
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