Please follow the steps below if the problem persists:
- Close Internet Explorer.
- Open Internet Explorer and make sure the Isabel website is not opened.
- Open the Delete Browser History window by using the key combination CTRL + SHIFT + DEL. If the window does not appear go to the Tools menu (> Safety) > Delete browser history.
- Here you can select what you want to delete. Make sure Temporary Internet Files and Cookies are selected and Preserve Favorites website data is not selected.
- Confirm by clicking Delete.
- Try again to sign in to Isabel 6.