> For the complete documentation index, see [llms.txt](https://help.simnetonline.com/blog/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://help.simnetonline.com/blog/2015-posts/notice-system-maintenance-november-14th-12am-7am-eastern-up-to-15-minutes-only.md).

# Notice: System Maintenance: November 14th, 12AM-7AM Central (up to 15-minutes only)

SIMnet will be unavailable Saturday, November 14th, 2015 for up to 15-minutes between 12:00AM – 7:00AM Central. We are performing a high priority patch related to a denial of service vulnerability on the firewall. This maintenance is part of our continuous effort to improve security.

Sincerely,

McGraw-Hill Product Team