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Solved: How do I fix the controller constantly rebooting every hour?

This article describes how to fix an issue where the Virtual Controller reboots every hour.


Wireless Controllers.


This issue occurs if the IP address on the Virtual Controller changes, which causes the system ID to change. Because the system ID in the license file becomes outdated, the license becomes invalid.

To fix this issue, request a new license file on the Fortinet Support Portal and import it on the Wireless Controller. This will stabilise the Virtual Controller.

See the FortiWLC Deployment Guide for steps on how to import a license file.

Alex Lim is a certified IT Technical Support Architect with over 15 years of experience in designing, implementing, and troubleshooting complex IT systems and networks. He has worked for leading IT companies, such as Microsoft, IBM, and Cisco, providing technical support and solutions to clients across various industries and sectors. Alex has a bachelor’s degree in computer science from the National University of Singapore and a master’s degree in information security from the Massachusetts Institute of Technology. He is also the author of several best-selling books on IT technical support, such as The IT Technical Support Handbook and Troubleshooting IT Systems and Networks. Alex lives in Bandar, Johore, Malaysia with his wife and two chilrdren. You can reach him at [email protected] or follow him on Website | Twitter | Facebook

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