> For the complete documentation index, see [llms.txt](https://docs.acecloud.ai/knowledge-base/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.acecloud.ai/knowledge-base/support/why-does-my-ace-linux-instance-keep-stopping.md).

# Why does my Ace Linux Instance keep stopping?

If your instance is overused, it may fail health checks. If you over-utilize resources, there are several reasons why your health check might fail. There are a few common reasons for an instance's inactivity:

* **CPU**: All the preceding processes necessitate CPU time to work. The kernel cannot perform standard operating system activities if the CPU is used at 100% for an extended period of time. 
* **Networking**: Your system won't be able to respond to ARP requests from status checks without networking. If this happens, your instance cannot communicate with other hosts.