News
Release 1.11.3
In this release.
1. Added a cancel button to the connecting progress dialog.
2. Moved the acquiring local address, binding, and acquiring server address functions to their own thread. Added a progress / cancel dialog for this thread.
3. Added detection of system logout / shutdown signals to close the application, destroy temporary files, and flush the trace file.
System logout / shutdown signals differ between operating systems.
Windows: The application will clean up on logout, reboot, and shutdown. The application will NOT clean up when closed from the task manager.
Linux: The application will clean up when closed from the System Monitor, and depending on the Linux configuration, logout, reboot, and shutdown. The Linux configuration must be set to issue SIGHUP signals (by default, Ubuntu does, Fedora does NOT. Check the documentation on your particular operating system to enable SIGHUP signals.)
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User login
You've stopped for a cup of coffee or you've checked into a hotel. You've connected to their WiFi but you can't get any web sites to display. The hotel gave you a password but you never see a place to enter it. This simple application will usually fix the problem. Start it up and press the button.
The "Initiate WiFi Login" Android app is available at Google play and the Amazon Appstore.
Are you interested in a custom app for your own blog or business?
Contact us.
What is this trace telling me?
How do I use "Why Can't I Connect?"
TCP/IP sockets are asynchronous so there is no way to lay out a simple set of rules. The following is a common sequence of events you would expect to see while connecting to a server.
Here is an example of a successful connection to a MySQL server and the steps used.
Try to find the local machine name.
Check for a usable IP address.
A usable IP address has been found. If this fails, the network connection on the local machine has failed.
Bind the socket handle to a system assigned port. Now it can be used to connect.
Set the timeouts.
Resolve the server name to an IP address. If this fails, DNS is down, the server can't be seen from your machine, or the server is not in your host file.
The connection is successful. If this fails, the port is probably blocked by a firewall or the service is not available.
An opening message from the server. Everything looks OK.
We're done, close the connection.
On the lighter side
WhyCantIConnect.com
Release 1.12.0
In this release
1. Added SSL / TLS support for IMAP, POP3, SMTP, LDAP, Usenet, and Generic Client connections.
2. Added a trace showing the SSL / TLS certificate information after a connection.
3. Fixed a bug when connecting a Generic Client that expects a response.
Warning: this application links to the openssl libraries. Do not download this application if this is illegal in your country.
The SSL / TLS certificate information trace shows the valid date range and subject information if the trace detail level is set to Medium. The trace additionally shows the issuer information if the trace detail level is set to High.