Mac client hands on first opening.

Mac client hands on first opening.

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Hello folks,

I have installed the devolutions client (just bought the license) and I'm still getting the client hanging once I first open it... It keeps like for this a long period of time...

Screenshot 2026-09-02 at 8.24.57 PM.png

Then I get this error:

Screenshot 2026-09-02 at 8.29.46 PM.png

The full error stack is this:

Devolutions.RemoteDesktopManager.Business.TryGoOfflineException: net_io_readfailure, Operation timed out

---> System.IO.IOException: net_io_readfailure, Operation timed out

---> System.Net.Sockets.SocketException (60): Operation timed out

at System.Net.Sockets.Socket.Receive(Span`1 buffer, SocketFlags socketFlags)

at System.Net.Sockets.NetworkStream.Read(Span`1 buffer)

Exception_EndOfInnerExceptionStack

at System.Net.Sockets.NetworkStream.Read(Span`1 buffer)

at System.Net.SyncReadWriteAdapter.ReadAsync(Stream stream, Memory`1 buffer, CancellationToken cancellationToken)

at System.Net.Security.SslStream.EnsureFullTlsFrameAsync[TIOAdapter](CancellationToken cancellationToken, Int32 estimatedSize)

at System.Runtime.CompilerServices.PoolingAsyncValueTaskMethodBuilder`1.StateMachineBox`1.System.Threading.Tasks.Sources.IValueTaskSource<TResult>.GetResult(Int16 token)

at System.Net.Security.SslStream.ReadAsyncInternal[TIOAdapter](Memory`1 buffer, CancellationToken cancellationToken)

at System.Runtime.CompilerServices.PoolingAsyncValueTaskMethodBuilder`1.StateMachineBox`1.System.Threading.Tasks.Sources.IValueTaskSource<TResult>.GetResult(Int16 token)

at System.Net.Security.SslStream.Read(Span`1 buffer)

at System.Net.Http.HttpConnection.Read(Span`1 destination)

at System.Net.Http.HttpConnection.ContentLengthReadStream.Read(Span`1 buffer)

at System.IO.Stream.ReadAtLeastCore(Span`1 buffer, Int32 minimumBytes, Boolean throwOnEndOfStream)

at System.Xml.XmlTextReaderImpl.InitStreamInput(Uri baseUri, String baseUriStr, Stream stream, Byte[] bytes, Int32 byteCount, Encoding encoding)

at System.Xml.XmlTextReaderImpl.FinishInitStream()

at System.Xml.XmlTextReaderImpl..ctor(Stream stream, Byte[] bytes, Int32 byteCount, XmlReaderSettings settings, Uri baseUri, String baseUriStr, XmlParserContext context, Boolean closeInput)

at System.Xml.XmlReader.Create(Stream input)

at Devolutions.RemoteDesktopManager.Managers.UpdateManager.GetNewestVersionFromFeed(String feedUrl)

Exception_EndOfInnerExceptionStack

All Comments (11)

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Hello,

Thank you for contacting Devolutions Support

I suspect the hang and the error you're seeing occur while Remote Desktop Manager checks for a new version on startup, not while connecting to your data source. When that check can't complete quickly, the app waits until it times out, which is the freeze you're experiencing.

As a first step, could you try switching that check to manual?

1. Once the app finishes loading (even after the delay), go to File > Settings > General > Application start.

2. Under Auto-update, set Frequency to "Manual checks only."

3. Restart Remote Desktop Manager and let us know if it opens normally.

If the hang disappears, that confirms the update check is the culprit, and we can look at why it's timing out (often a firewall, proxy, or antivirus blocking outbound access to cdn.devolutions.net) if you'd like it re-enabled down the line.

Looking forward to hearing how it goes.

Best regards,

Samuel Dery