Commented Issue: Seeing a protected memory exception [1549]

I am seeing a protected memory exception when connecting to device.

```
Attempted to read or write protected memory. This is often an indication that other memory is corrupt. at System.Threading.Monitor.ObjWait(Boolean exitContext, Int32 millisecondsTimeout, Object obj)
at Renci.SshNet.Common.SemaphoreLight.Wait()
at Renci.SshNet.Session.Connect()
at Renci.SshNet.BaseClient.Connect()
at nls.protocols.ssh.SshTerminal.InsureConnectionOpen() in d:\NLS\protocols\ssh\SshTerminal.cs:line 111
at nls.protocols.ssh.SshTerminal.GetCommandResults(String commandText) in d:\NLS\protocols\ssh\SshTerminal.cs:line 80
at nls.protocols.ssh.Ssh.IdentifyDevice(SshTerminal terminal) in d:\NLS\protocols\ssh\ssh.cs:line 135
at nls.protocols.ssh.Ssh.ProcessHostData(XmlDocument sshData, Host host) in d:\NLS\protocols\ssh\ssh.cs:line 226
at nls.lib.discoveryAgent.SingleDeviceProtocol.<>c__DisplayClass1.<ProcessHost>b__0() in d:\NLS\lib\discoveryAgent\SingleDeviceProtocol.cs:line 24
at System.Threading.Tasks.Task`1.InnerInvoke()
at System.Threading.Tasks.Task.Execute()
at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
at System.Threading.Tasks.Task.ExecuteWithThreadLocal(Task& currentTaskSlot)
at System.Threading.Tasks.Task.ExecuteEntry(Boolean bPreventDoubleExecution)
at System.Threading.ThreadPoolWorkQueue.Dispatch()
```
Comments: ** Comment from web user: trapalas **

I have also seen this error, randomly, when trying to receive the response to a web request through a tunnel created with a ForwardedPortLocal object

My environment: Window 7 Professional 32-bits, .Net 4.0, SSH.Net vs 2013.4.7.0

Find below the code I'm running (the exception is raised in the GetResponse call). It is working well most of the times and there is not a particular request provoking the problem.

```
var webReq = (HttpWebRequest)WebRequest.Create(url);
webReq.Timeout = 15000;
webReq.Method = "GET";
using (var webRes = webReq.GetResponse())
{...}
```