Socket Error "The Requested Address Is Not Valid In Its Context"

Dec 23, 2009

"The requested address is not valid in its context."

[Code]...

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Error - The Requested Address Is Not Valid In Its Context

Sep 1, 2011

I get this error.. and I know the ip address is not valid duh! but it's a server it should be based on port only.

Error =

Errors at runProxy @ The requested address is not valid in its context
0.0.0.0:7900

[code]....

P.S.> my client I connect to 127.0.0.1 : 7900..I want it to re-route the connection to the txtIP.text : 7900 (txtListeningPort.Text)

.net - The Requested Address Is Not Valid In Its Context?

Aug 23, 2011

I have this code that keeps giving me two problems.

first:The requested address is not valid in its context

second , it receives broadcast it sends, i dont want this. I want only the listeneing server app to receive the broadcast....the sending code

Dim sendMessage As New structMessage
sendMessage.Command = Command.IP
Dim byteData As Byte() = sendMessage.ToByte()[code]....

Usage Of Each Socket Address (protocol/network Address/port) Is Normally Permitted?

Aug 11, 2009

SocketException was Unhandled: Only one usage of each socket address (protocol/network address/port) is normally permitted I get this error every time i click collect a second time.

[Code]...

Client Socket - Send Message Through Client Socket Receive Specified Argument Was Out Of Range Of Valid Values

Oct 15, 2011

Below is my code, but when i send the message thru client socket i receive Specified argument was out of the range of valid values. Parameter name: size

Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click

Dim serverStream As NetworkStream = clientSocket.GetStream()
Dim outStream As Byte() = _
System.Text.Encoding.ASCII.GetBytes("0800822000000000000004000000000000000920092126012345001")

[CODE]...

C# - How To Fix Error "Only One Usage Of Each Socket Address Is Normally Permitted"

Jan 23, 2012

I have 1 process that acts as a server (TcpListener) and one or more processes that act as clients (TcpClient). The clients are sending Tcp requests to the server every 1-2 seconds to which the server responds with a result message.

In normal conditions the server will use TcpListener.Stop when it closes, but sometimes the server will crash (for whatever reason) and then this is not done. If I then try to restart then I get the following error:

"Only one usage of each socket address (protocol/network address/port) is normally permitted"

I only get this error when there are clients running who keep trying to connect despite the TcpListener is not there anymore (crashed).I don't get this error when I first manually close/kill all clients before restarting the server/TcpListener.I'm looking for an automatic recovery procedure that deals with this error/problem. How can this be done?Below you'll find code examples of the server and the client.BTW: Although the codes examples are in VB.NET, I can also handle C# code. That's why I tagged this question with both VB and C#.Code example for server/TcpListener:

Public Shared Sub Thread_TcpListener_GUI()
While True
Dim tcpClient As TcpClient = Nothing
Dim tcpListener As TcpListener = Nothing

[code]....

VS 2008 An Address Incompatible With The Requested Protocol Was Used?

May 4, 2010

how can i solve this problem?

Vista And TCPClient - Address Incompatible With Requested Protocol Used

Feb 25, 2010

I did a simple program using tcpclient on xp last year and it worked fine but now I have vista installed and I am getting an error now when i try to connect.
The error is "An address incompatible with the requested protocol was used."

IP Address Filter Or Mask To Only Allow Valid IP Address Before Pinging Or Testing For Network Connection

Jul 6, 2011

Are there any IP Address filters or masks available in Windows Forms as per following screenshot? A backslash shouldn't be allowed or it should be filtered somehow.

Socket Can't Connect External IP Address

Apr 9, 2012

I started to setup a Server and a Client for personal purpose. When I try to connect the Server by a computer inside a shared network, with local IPs, works but when I try to connect an external IP, doesn't work.[code]

Error: The CLR Has Been Unable To Transition From COM Context 0x4cefd8 To COM Context 0x4cf148 For 60 Seconds

Aug 20, 2009

When bulk renaming files (14000 of them) i get this error: The CLR has been unable to transition from COM context 0x4cefd8 to COM context 0x4cf148 for 60 seconds. The thread that owns the destination context/apartment is most likely either doing a non pumping wait or processing a very long running operation without pumping Windows messages. This situation generally has a negative performance impact and may even lead to the application becoming non responsive or memory usage accumulating continually over time. To avoid this problem, all single threaded apartment (STA) threads should use pumping wait primitives (such as CoWaitForMultipleHandles) and routinely pump messages during long running operations.

My code is as follows:

Private Sub frmTest_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
Dim asd As List(Of String) = FileIO.FileSystem.GetFiles("D:Music").ToList
Dim rs As New ADODB.RecordSet("SELECT * FROM Songs", My.Settings.Files_Database__Connection)

[code].....

Multiple Socket Connections - Address Of Parameters?

Mar 2, 2012

I am writing a socket client into my application. I have multiple socket connections to make to different servers.
ClientSocket(1).BeginConnect(endpoint1, AddressOf Connected, Nothing)
ClientSocket(2).BeginConnect(endpoint2, AddressOf Connected, Nothing)
Both clients call the connected sub... how do I know which one is which?
Private Sub Connected(ByVal ar As IAsyncResult)

Specific Cast Is Not Valid In Client Server Socket Program

Jun 14, 2012

I am Working on Teghax Component.Using This Component we want to find out Block title attribute of dwg file in a client server socket application.

1> We get Block title attributes properly of dwg file in windows application form using the getattribute function().

2> We get Block title Attributes properly in that way:-We take a class library where we take a class.in this class we use getattribute function().Then We access the particular class from another project

But when we use the same class(Keep same structure) in client server socket program.Then it gives an exception.i.e ,"Spaicfied cast is not valid"I am Not getting any reply form teghax developer..I attached exception screen sort.Give me Suggestion How to solve this Exception

Code given Bellow :

Public Function Get_DwgFileAttribute(ByVal Sender As ClsTcpConnection, ByVal msgTag As Byte, ByVal message As String) As String
Dictionary = GetHashtable(message)
Dim varfilepath As String = CStr(Dictionary.Item("filePath"))

[code]....

Mds - Error "The CLR Has Been Unable To Transition From COM Context 0x3dc190 To COM Context 0x3dc300 For 60 Seconds"

Jun 8, 2011

I got this message because of a long process: ContextSwitchDeadlock was detected
Message: The CLR has been unable to transition from COM context 0x3dc190 to COM context 0x3dc300 for 60 seconds. The thread that owns the destination context/apartment is most likely either doing a non pumping wait or processing a very long running operation without pumping Windows messages. This situation generally has a negative performance impact and may even lead to the application becoming non responsive or memory usage accumulating continually over time.

To avoid this problem, all single threaded apartment (STA) threads should use pumping wait primitives (such as CoWaitForMultipleHandles) and routinely pump messages during long running operations. I've poked around on the internet and on a forum, someone suggested to use application.doevents(). I did that and the messaged goes away. In an earlier thread a member wrote that using application.doevents rarely was used appropriately. Is my situation a proper usage of application.doevents or is there something else I should be doing?

IDE :: Requested Registry Access Is Not Allowed Error

Oct 3, 2007

When ever I try to create a new project, any project using VS2008 B2 running on Vista I get this error. "Requested Registry Access is not allowed." Obvious registry thing bu t would rather not get into and mess with any hives

Check Valid E-mail Address?

Feb 2, 2011

I am developing client application I store client details with e-mail address. but I give permission to users to entry valid e-mail address of every client, In that case I will check valid e-mail address for that how to check the given valid e-mail address

Test If The Characters In A String Is A Valid MAC Address?

Apr 8, 2012

i am trying to test if the characters in a string is a valid MAC Address

but my code

dim getMAC as string = "22:13:35:67:49:ab"
If Regex.IsMatch(getMAC, "/^([0-9a-fA-F]{2}:){5}[0-9a-fA-F]{2}$") = True Then
messagebox.show("is valid")

[Code].....

Asp.net - Check That Email Address Is Valid For System.Net.Mail.MailAddress?

Aug 11, 2011

Currently, to avoid errors from being thrown up due to invalid email addresses, I do the following:

Dim mailAddress As MailAddress
Try
mailAddress = New MailAddress("testing@invalid@email.com")
Catch ex As Exception
'Invalid email
End Try

However, rather than depending on Try..Catch, is there a way of validating that the email address will be 100% valid for the MailAddress type?I know there a plenty of regex functions out there for validating emails, but I'm looking for the function which the MailAddress type uses to validate its addresses.

Error: Mscorlib: The Requested Operation Cannot Be Performed On A File With A User-mapped Section Open

Apr 6, 2012

I've written a VB.NET program for a client that stores all of its data in XML files. I use the XMLReader to read the data into a dataset. When I run the sub to encrypt the XML file, I'll get the following message: Error: mscorlib: The requested operation cannot be performed on a file with a user-mapped section open.

It doesn't happen all the time, so I know it does work. But on occassion, I'll get this message. I've been all over the forums and I've tried everything I've read to try and stop this error.

I close the reader object and set it equal to Nothing. I've even tried using DoEvents to make sure the object finished closing before running the Encrypt sub. Nothing has helped.

I develop on a x32 PC. It works fine on the development machine. But then, when the client runs it on a x64 PC, he gets these errors. Could the x64 system really be running so fast that the .Close() and the = Nothing and evern the .DoEvents() can't keep up?

Error When Working With Socket TCP IP

Jan 12, 2011

this is the first time I try to study the socket of .NET. I configed follow the tutorial here [URL] . Then I try to write some execute code for my project. I insert an "Add item" to a listbox after socket server receiving Data from client. However, the server doesn't execute my "Add item" code and it disconnect to the client? If I erase this code, everything is ok!

[Code]...

Error "The Requested FTP Command Is Not Supported When Using HTTP Proxy"

Nov 2, 2011

I used the following code to upload a file to a web server through FTP, but it fails when calling clsRequest.GetRequestStream() with the error...

Quote:

System.InvalidOperationException: The requested FTP command is not supported when using HTTP proxy.

Here's the

Dim clsRequest As System.Net.FtpWebRequest = DirectCast(System.Net.WebRequest.Create("ftp://server/directory/myfile.txt), System.Net.FtpWebRequest)
clsRequest.Credentials = New System.Net.NetworkCredential("mylogin", "mypassword")
clsRequest.Method = System.Net.WebRequestMethods.Ftp.UploadFile

[code].....

IDE :: "requested Registry Access Not Allowed" Error In Visual Studio 2005 / 2008

Oct 2, 2007

I'm using Vista home premium and VS2005 (and VS2008 beta 2) When trying to make a new project or and a new file,class,libraryn,... I get the error "requested registry access not allowed".

C# - Error - Cannot Open Database "LIC" Requested By The Login

Jan 14, 2012

I am using the following code to backup my database...

Dim con As SqlConnection
Dim cmd As SqlCommand
con = New SqlConnection("Data Source=.SQLEXPRESS;Initial Catalog=LIC;Trusted_Connection = yes")

[code]...

But I get this error

Cannot open database "LIC" requested by the login. The login failed.Login failed for user 'mono-PCmono'.

Runtime Error: This Application Has Requested The Runtime To Terminate In An Unusual Way

Aug 6, 2007

I have a Visual Basic 2005 program which runs fine if I execute the built Executable. However if I start the application in VS2005 debugger it gives a weird error

[Code]...

Communications :: Socket Connection Error

Aug 1, 2008

I'm working on an application that communicates to torque controllers on the factor floor. The user inputs an IP address and a port and clicks the btnConnect button to make the initial connection. Once that completes a KeepAlive message must be sent periodically to maintain communication with the torque controller. The initial connection works very well but a socket error (see below) grinds everything to a halt when the KeepAlive message is sent. I would appreiciate any ideas the readers may have on the root cause. I'm quite confused because basically the same code is use for both the initial connection and then the KeepAlive messages. I have pasted some of the code as well below.

[code]...

Windows Socket Error (VB 2008)?

Jan 25, 2011

My code works fine under xp pro but not under windows 7 ?System.Net.Sockets.SocketException = {"The system detected an invalid pointer address in attempting to use a pointer argument in a call"}

Identify Connection Lost Between Socket Server And Socket Client?

May 21, 2011

I wrote a Socket Client which will send the Socket Server some data and get some response from Server. This process will be running once in every 2 seconds.

Now what I need to know is How we can identify the connection lost between Server and Client?

I need this to be implemented in the Client side. If there is no connection then Client should automatically close the connection. Once the connection with the server is available in the next attempt it should connect automatically.

Error With AddEclippse - The Error Is: Cross-thread Operation Not Valid?

May 5, 2012

I am having a problem that I keep getting the following error when I try to run my program.I am trying to make a circle the size of the value of FrameSize.A first chance exception of type 'System.InvalidOperationException' occurred in System.Windows.Forms.dll

This is the details of the error:

System.InvalidOperationException was unhandled

Message=An error occurred creating the form. See Exception.InnerException for details. The error is: Cross-thread operation not valid: Control '' accessed from a thread other than the thread it was created on.
Source=DreamCatcher[code]......

Socket Error 'A Blocking Operation Was Interrupted By A Call To WS?

Mar 23, 2011

making an sort server/client app and i can start the server and such... , but when i trie to stop the server i got this error:

A blocking operation was interrupted by a call to WSACancelBlockingCall
This is the code where i get the error:
Public Sub StartServer()

[code]....

TCP Client Error While Reading Data From Socket Server?

Apr 20, 2012

I have a TCP Socket Client (using the Socket Class) that is connected to a simple TCP socket server (just for testing)I have this code snippet :

Dim aSocket as Socket
While aSocket.Connected = True
byteRead = aSocket.Receive(dataByte) 'number of bytes

[code].....

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