McAfee Stinger won't update

This is more of an FYI. Sometime last week McAfee Stinger stopped updating. I have my USB drive setup to check for updates on platform startup, but each time it starts it errors out when trying to update the program. This is on multiple computers. I thought I'd try to right click and uninstall, but no success there either. I was, however, able to delete the folder, reinstall Stinger from the PortableApps.com website, and update it successfully.