I am master admin, I have already login my account QuickBooks , I can go to "bank" area and other area. When I go to "employee "area, the system request me to login again and I enter login ID and password. the system shows fail login in . I don't know what happened.
Let's check if this behavior is caused by a full cache.
A cache stores your browsing data so it quickly reloads when you revisit a web page. However, it can cause an unusual behavior in QuickBooks when it's full.
To start checking, you can log in to QuickBooks in a private browser. This disables the cache from saving your data and it's a good way to check issues caused by a full cache. If you can access the Employees tab, you can go back to your regular browser and clear the cache. If you can't, you can try other browsers.
Please go back to this thread if you have other questions.