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3.2. “More than one instance of ADP open” error message
- Receiving the error message “More than one instance of ADP open” generally happens if you did not log out of ADP the last time you accessed your account and either timed out or inadvertently “X’ed” out instead. ADP will mistakenly think you are still logged in when you are not.
- To remedy this issue, clear your Internet browser cache/cookies, close the browser, and then open a new browser window before going back to the ADP site. You should then be able to log in.
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