Lan connection Err_connection_timed_out Error

We have a self-hosted cloud-based server with 25 users in our company, and when we are operating from companies wifi, sometimes the connection to the server gets this error of connection timeout or DNS error. Same time if we switch to a different connection the site opens. After waiting for some time, again the page is accessible. But this keeps on happening again and again.

The load on the server is not going up and even though the CPU usage is low, still the issue keeps on happening. The problem is only on our internal connection but we are not able to identify the reason for the issue.

If anyone is able to guide us then it would be very helpful

having same issue have you found any solution?

is it similar to this?

https://github.com/frappe/frappe/issues/16500

we did this and it solved our issue
run this command
sudo apt remove --purge fail2ban

2 Likes

Thanks!

We faced the same ERR_CONNECTION_TIMED_OUT issue on our internal company Wi-Fi, even though the server load and CPU usage were normal. The site worked fine on mobile data or other networks, which pointed to a local DNS or routing problem. Try setting a reliable external DNS (like 8.8.8.8) on your router or client devices and check for IP conflicts or firewall rules on your LAN. You can also review any security software or proxy settings that might be interfering. For a detailed breakdown of causes and fixes, https://cheapsslweb.com/blog/fix-err_connection_timed_out-error-in-chrome/ has a useful guide on this error.

I hope it helps!

The error ERR_CONNECTION_TIMED_OUT does not indicate a dangerous problem or an infected file that can harm your system. Instead, it denotes that the system could not connect successfully with the target server. This connection facilitates the transfer of data packets between the two systems. But, when this connection establishment process fails, which can be due to a ā€œnā€ number of issues, such as a bad local network connection. There are ā€˜n’ number of reasons for the error to be occured which are as follows:-

  1. Invalid URL
  2. Slow internet connection
  3. Firewall settings
  4. Server delay or error

There are many different ways to fix the error which can be able to solve the error issue. Hope it helps!