Troubleshooting a Check for Updates Failed Error
This page explains how to resolve the following error in your Utilities > Logs > Activity Log during the daily automation tasks:
Check for Updates Failed: Unable to connect to the WHMCS Update Server. Please try again later or contact support.
Set a Temporary Update Path
Begin by navigating to Utilities > Update WHMCS

The following warning is displayed:

Click the Configure Uprate Settings button in the top-right corner

In the pop-up modal which appears, use the Temporary Path field to specify a writeable directory which WHMCS can use for temporary auto-update files:

If a suitable directory does not exist already, you will need to create one.
Click Save Changes
The warning message will now disappear, indicating the problem is resolved.
More guidance on setting a temporary update path can be found at:
Check Network Connectivity
If the issue persists after setting a valid temporary update path directory, refer to this link for advanced troublehsooting: