diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 126fe79..c6b38ac 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -42,7 +42,7 @@ jobs:
       run: msbuild $env:Solution_Name /p:Configuration=Debug /p:Platform="Any CPU"
 
     - name: Telnet.CiTests
-      uses: microsoft/vstest-action@v1.0.0
+      uses: rusty-bender/vstest-action@main 
       with:
         testAssembly: PrimS.Telnet.CiTests.dll
         searchFolder: ./**/bin/Debug/**/
@@ -50,7 +50,7 @@ jobs:
 
     # Can't apparently run both full fat and core test suites together.'
     - name: Telnet.*.CiTests
-      uses: microsoft/vstest-action@v1.0.0
+      uses: rusty-bender/vstest-action@main
       with:
         testAssembly: PrimS.Telnet.*.CiTests.dll
         searchFolder: ./**/bin/Debug/**/
@@ -89,12 +89,14 @@ jobs:
     - name: Nuget pack
       run: nuget pack Telnet.nuspec -Version $Env:NuGetVersionV2ext
 
-      # Navigate to repo->Settings->Actions and check PUBLISH_TO_GITHUB_PACKAGES
+      # Navigate to https://github.com/settings/tokens and check to see if the old token has expired
       # https://github.com/settings/tokens to create a new classic token, permission write:packages, name & copy paste to PUBLISH_TO_GITHUB_PACKAGES
+      # Navigate to repo->Settings->Secrets and variables->Actions and check PUBLISH_TO_GITHUB_PACKAGES
     - name: Publish to GitHub
       run: dotnet nuget push "Telnet.$Env:NuGetVersionV2ext.nupkg" --api-key ${{ secrets.PUBLISH_TO_GITHUB_PACKAGES }}  --source "https://nuget.pkg.github.com/9swampy/index.json"
 
-      # Login to Nuget 9swampy->Api Keys and regenerate, copy to NUGET_APIKEY
+      # Login to Nuget 9swampy->Api Keys and regenerate, copy to...
+      # GitHub navigate to repo->Settings->Secrets and variables->Actions and set NUGET_APIKEY
     - name: Publish to Nuget
       if: github.ref == 'refs/heads/master'
       run: nuget push "Telnet.$Env:NuGetVersionV2ext.nupkg" ${{ secrets.NUGET_APIKEY }} -source https://api.nuget.org/v3/index.json
diff --git a/PrimS.Telnet.NetStandard/Client_Config.cs b/PrimS.Telnet.NetStandard/Client_Config.cs
index 4dedcf4..5e0103e 100644
--- a/PrimS.Telnet.NetStandard/Client_Config.cs
+++ b/PrimS.Telnet.NetStandard/Client_Config.cs
@@ -23,6 +23,11 @@ public partial class Client
     /// </summary>
     public const string Rfc854LineFeed = "\r\n";
 
+    /// <summary>
+    /// Due to https://github.com/9swampy/Telnet/issues/79 allow skip SkipProactiveOptionNegotiation.
+    /// </summary>
+    public static bool SkipProactiveOptionNegotiation { get; set; } = false;
+
     /// <summary>
     /// Initialises a new instance of the <see cref="Client"/> class.
     /// </summary>
@@ -84,14 +89,22 @@ public Client(IByteStream byteStream, TimeSpan timeout, CancellationToken token,
 #if ASYNC
 #pragma warning disable VSTHRD002 // Avoid problematic synchronous waits
         // https://stackoverflow.com/questions/70964917/optimising-an-asynchronous-call-in-a-constructor-using-joinabletaskfactory-run
-        Task.Run(async () => await ProactiveOptionNegotiation().ConfigureAwait(false)).Wait();
+        if (!SkipProactiveOptionNegotiation)
+        {
+          Task.Run(async () => await ProactiveOptionNegotiation().ConfigureAwait(false)).Wait();
+        }
+
         foreach (var option in options)
         {
           Task.Run(async () => await NegotiateOption(option.Command, option.Option).ConfigureAwait(false)).Wait();
         }
 #pragma warning restore VSTHRD002 // Avoid problematic synchronous waits
 #else
-        ProactiveOptionNegotiation();
+        if (!SkipProactiveOptionNegotiation)
+        {
+          ProactiveOptionNegotiation();
+        }
+
         foreach (var option in options)
         {
           NegotiateOption(option.Command, option.Option);
@@ -142,7 +155,7 @@ internal static byte[] SuppressGoAheadBuffer
 #if ASYNC
       return ByteStream.WriteAsync(supressGoAhead, 0, supressGoAhead.Length, InternalCancellation.Token);
 #else
-      ByteStream.Write(supressGoAhead, 0, supressGoAhead.Length);
+        ByteStream.Write(supressGoAhead, 0, supressGoAhead.Length);
 #endif
     }
 
diff --git a/Telnet.nuspec b/Telnet.nuspec
index e715471..ee3330b 100644
--- a/Telnet.nuspec
+++ b/Telnet.nuspec
@@ -17,7 +17,7 @@
     </description>
     <readme>docs\README.md</readme>
     <releaseNotes>
-      0.12 adds a Net8.0 target and extends the Client ctor to additionally accept options to send during negotiation.
+      0.13 extends the Client with a static flag SkipProactiveOptionNegotiation due to https://github.com/9swampy/Telnet/issues/79.
     </releaseNotes>
     <copyright>Copyright (c) 9swampy, Telnet contributors</copyright>
     <tags>Telnet</tags>