504 Yahoo Errors are amongst the most common errors faced while working online. It indicates that your server didn’t receive a quick response from the upstream server. There might be several behind this, so read out the information below of Yahoo Error code 504, including the cause and solution.
Server connectivity issues
When the server needs maintenance or any other reason; then, your homepage may highlight such an error. The accurate way to troubleshoot this error is to wait for your server to finish the maintenance or establish the problem causing the error. You can also check your internet connectivity since the server may work slowly due to an improper internet connection.
Fix faulty firewall configuration.
Firewalls are provided to protect the system from unwanted data or errors. However, there are situations when these firewall configurations may become the reason behind your Yahoo error 504. To overcome such a problem, you can deactivate your firewall temporarily. Once you’ve deactivated the firewall from the settings, check whether the error is resolved or not. If it’s resolved, then make sure to either reconfigure the settings of your existing anti-virus program or go for a new one.
Check for DNS changes.
Your DNS server needs an update if you’ve recently changed your host providers or moved to a different IP address. In such a case, the DNS changes take a few hours to get updated; meanwhile, you may face such issues as Yahoo error code 504 on your screen. The most proper solution to this issue is to wait for the changes that come into effect via new DNS.