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"Why Can't I Connect?" is a network diagnostic tool that makes it easier to resolve TCP/IP connection errors. Use it to diagnose connections to common server types (Microsoft SQL Server, MySQL Server, FTP, SFTP, IMAP, POP3, SMTP, IRC, LDAP, Usenet) and create generic / user defined TCP/IP clients and servers. Maybe a firewall is blocking the requested port, the port isn't listening, DNS isn't returning the expected address, DHCP hasn't supplied a local IP address, the SSL / TLS certificate has expired, the WiFi login isn't complete... The application will step through the connection process, resolving all IP addresses, displaying all sent and received messages in both hexadecimal and ascii. Any errors will be reported with possible causes for the error. "Why Can't I Connect?" is a DIAGNOSTIC TOOL ONLY. It will find the root cause of the error but it will not, apart from incomplete WiFi / wired network logins, attempt to repair the connection. The application is intended for users with some network experience or users who wish to be able to supply technical details to a help desk. There is currently support for Windows and Linux operating systems.
The "Why Can't I Connect?" Android companion app is now available at Google play and the Amazon Appstore.
Android is a trademark of Google Inc.
A Windows install executable, 32 and 64 bit Fedora rpms, 32 and 64 bit Ubuntu debians, and a Raspbian / armhf debian are available as well as source code. There is language support for Chinese (simplified character set), Czech, Danish, Dutch, English, French, German, Hindi, Italian, Polish, Portuguese, and Spanish. Visit the Quick Tour and the Smartphone Quick Tour for screenshots and an overview of "Why Can't I Connect?". Visit Help / Instructions for a more detailed explanation of the functionality. Visit the Knowledge Base to find useful information, make requests, report bugs, ask questions, and view solutions.
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Or browse all the available Downloads.
Custom Builds / Custom User Interfaces are now available to match exactly to your company needs. A small, easy to use application for your employees and customers. With the simple press of a button, your custom application will search for any problems and create a detailed report for your help desk matching to your company's services and specifications. Save help desk time and relieve customer frustration.
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"Why Can't I Connect?" Features:
- Network diagnostics
- Email connection debugging
- Database connection debugging
- Debug all TCP/IP connection issues on any address and port
- Create TCP/IP servers on any port
"Why Can't I Connect?" is licensed under the General Public License version 3 (GPLv3), free to download and distribute.
Warning: this application links to the openssl libraries for SSL / TLS connections. Do not download this application if this is illegal in your country.
WhyCantIConnect.com
Release 1.10.2
In this release:
1. Optimized the "Ports In Use" and the "Neighbors" tools. The "Ports In Use" tool runs significantly faster. Both the "Ports In Use" and "Neighbors" tools' "Cancel" buttons are quicker to respond to a user request.