Telethon bot connection issue: TimeoutError persists

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1

I’m having trouble with my Telethon-based Telegram bot. It keeps timing out when I try to run it. Here’s my code:

from telethon import TelegramClient, events
from secret_config import api_id, api_hash

bot = TelegramClient('my_bot', api_id, api_hash)

@bot.on(events.NewMessage(pattern='/hello'))
async def greet(event):
    await bot.send_message(event.chat_id, 'Hey there!')

bot.start()
bot.run_until_disconnected()

When I run this, I get a bunch of TimeoutErrors:

Connecting attempt 1 failed: TimeoutError
Connecting attempt 2 failed: TimeoutError
Connecting attempt 3 failed: TimeoutError
...
ConnectionError: Failed to connect to Telegram after 5 tries

I’ve tried using a VPN and even a VPS, but no luck. Any ideas what could be causing this? Has anyone else run into this problem before?

2

I’ve encountered similar issues with Telethon timeouts before. Often, it’s related to network restrictions or firewall settings. Have you checked if your ISP is blocking Telegram’s MTProto protocol? Some ISPs do this, causing connection problems.

Another potential cause could be outdated API credentials. Make sure your api_id and api_hash are current and correctly entered in your secret_config file.

If those don’t help, try increasing the timeout value:

bot = TelegramClient(‘my_bot’, api_id, api_hash, connection_retries=10, retry_delay=5)

This gives Telethon more attempts and time to establish a connection. If the problem persists, you might want to look into using a different DC (data center) or considering alternative libraries like python-telegram-bot.

3

I’ve dealt with this exact issue before, and it can be incredibly frustrating. One thing that worked for me was adjusting the proxy settings. Telethon allows you to use proxies, which can sometimes bypass network restrictions causing these timeouts.

Try adding this to your code:

import socks
proxy = (socks.SOCKS5, '11.22.33.44', 1080)
bot = TelegramClient('my_bot', api_id, api_hash, proxy=proxy)

Replace the IP and port with a reliable SOCKS5 proxy. This approach helped me when I was working on a project in a country with strict internet regulations.

Also, double-check your system’s date and time. Surprisingly, an incorrect system clock can cause connection issues with Telegram’s servers. Ensure your system time is accurately synced.

If nothing else works, you might want to consider using Telethon’s asynchronous methods more extensively. Sometimes, the synchronous connection attempts can be problematic.

4

hey mate, have u tried clearing ur session files? sometimes old sessions can mess things up. delete the .session file in ur working directory and try again. also, check ur internet connection - maybe ur wifi’s acting up? good luck!