What is ERR_CONNECTION_TIMED_OUT?
The ERR_CONNECTION_TIMED_OUT error occurs when your browser sends a connection request to a server but does not receive a response within the allotted time. By default, most browsers will wait for approximately 30 seconds. If the server remains silent after this period, the browser terminates the connection and displays the error.
On Chrome, you will typically see a notification like: “This site can’t be reached. domain.com took too long to respond,” accompanied by the error code ERR_CONNECTION_TIMED_OUT. Other browsers display similar messages with slight variations: Firefox says “The connection has timed out,” while Edge shows “Hmmm… can’t reach this page.”
Simply put, your computer is “calling” the server, but the server is not “picking up” within the specified time limit. It is similar to making a phone call where the other end keeps ringing, but no one answers.
This error is distinct from ERR_CONNECTION_REFUSED (where the server actively refuses the connection) or a 504 Gateway Timeout (where a proxy/gateway fails to receive a response from an upstream server). With ERR_CONNECTION_TIMED_OUT, the core issue is that the connection cannot be established in the first place.
To understand this simply, accessing a website involves several steps: the browser resolves the domain name via DNS, opens a TCP connection to the server’s IP, and then sends an HTTP request. If any of these steps are “stuck” for too long, a timeout error will occur. Therefore, the root cause can lie anywhere along the path from your computer to the server.
The installation steps are relatively lengthy, so you can access and follow the instructions here:
https://haduymusic.com/knowledge-base/err_connection_timed_out-error-causes-and-how-to-fix-it/
