[RESOLVED] Socket/Port remains open after app crashes

Posted on 16th Feb 2014 07:03 pm by admin

I'm having this problem with a networked app in vb.net.

If the program exits normally the port closes fine, however, if it crashes sometimes it remains open and I am unable to close it. The next time I run the program it is unable to open the port because it is already in use. Here's the exception:
10048: Only one usage of each socket address (protocol/network address/port) is normally permittedAny ideas on how I can reclaim this port, or how I can close it?
I tried using the reuse address socket option

Code: SetSocketOption(SocketOptionLevel.Socket, SocketOptionName.ReuseAddress, 1) but that just opens the port again and does not close the old one. see this netstat output:

TCP PCISERVER:14000 PCISERVER.cpwpci.cpwgroup.net:0 LISTENING 4320
[System]

TCP PCISERVER:14000 PCISERVER.cpwpci.cpwgroup.net:0 LISTENING 5808
[System]

TCP PCISERVER:14001 PCISERVER.cpwpci.cpwgroup.net:0 LISTENING 5808
[System]

TCP PCISERVER:14001 PCISERVER.cpwpci.cpwgroup.net:0 LISTENING 4320
[System]

As you can see once the program exits the ports remain opened by the System process.
I don't know of a way to stop them from listening besides a restart.

Your Answer:

Login to answer

Other forums

How to Handle more than one submit button in single form?
Hi
I have one PHP file which contains one Form. In this form there are two Submit type Buttons

SQl num_rows problem
when i try to count rows from an SQL select i get an warning

Code: [Select]$countviews = mysq

Do not allow posting of whitespace
Currently the script below works if the user does not type a name/message, but if i create a whitesp

records between 2 dates
Hello all,

I have a date tracked table which contains effective_start_date and effective

Problem with php's rename function
So, i'm having a problem with the php rename function. Basically my script 'delete_user.php' attempt

Multiple WHILE loops help
Hi there. I'm writing an application that is pulling and displaying results for real estate listing

Binding 2 UDP sockets on same port, connected to different destinations, 1 receives
Hello,
My application wants to send/recv data to 2 different UDP ports on a remote computer, us

SWF image using php?
Hello once again.

My latest en devour requires me to produce an image of a static .swf that i

Strange array issue, never happened before.
mysql_fetch_array returns 1 array per call. Generally that's why it is inserted into a while statem

serializing objects - loses methods - the point being?
Hi

I know that serializing an object will lose the methods. But whats the point in that? What