Upon login you see a “Security check failed on login” message such as the one you see below.
This is an error caused by your browser.
How To Fix This Error
To fix this error, there are a number of things that you can do.
1) The easiest way to fix this error is to close your browser down and reboot your computer or tablet. That should fix the issue.
2) Clear the cache or temporary files your browser has been collecting. If you are unaware of how to clear your cache or temporary internet files, simply use google.com and search under the name of your browser and the issue on clearing your cache. For example:
“Firefox clear cache” or “Chrome clear cache” and these will take you to various articles and youtube videos that explain how to clear the cache or temporary files from your computer.
Often after clearing the cache you will have to reboot your computer which is why the best suggestion is number 1 above.