Detailed description:
The "Wrong port number" error in Telegram is related to incorrect proxy server configuration and occurs when an invalid port value is passed in a request to the Telegram API. For proper operation of Telegram and automation tools, it is essential to specify correct connection parameters, including the proxy IP address and port number. If a negative number, zero, or an invalid character is entered, the system returns this error and stops processing the request.
Main reasons for the "Wrong port number" error:
1. An incorrect proxy port was entered — for example, a value lower than 1 or higher than the allowed range.
2. Manual configuration errors — such as adding letters or extra characters to the "Port" field.
3. Use of outdated or invalid proxy configurations in Telegram automation software.
4. Technical issues while passing connection parameters to the Telegram API.
This error indicates that a connection to the server through the proxy cannot be established, making it impossible to send messages, invites, or perform other automated actions.
Solution:
1. Make sure the proxy port is a positive number within the valid range (1–65535).
2. Verify that the proxy settings are entered correctly and contain no invalid characters.
3. If the error occurs in automation software, recheck the configuration file or reset the connection parameters.
4. Try using a different proxy server if the current one does not function properly.
The "Wrong port number" error is a technical issue that can be resolved fairly easily. For stable performance of the Telegram API and automation programs, it is recommended to carefully check connection parameters and always use valid port values.