Mimosa returning to password page

Dear all,
We have a Mimosa C5C Master and Slave,
Recently, there has been an issue, when I enter the password for the Mimosa, it enters and then quickly goes back to the password page, (in both the master and slave), even though there’s no “wrong password prompt”…

I would recommend double checking that you do not have duplicated IP addresses, then I would try using a different web browser, clearing your browsing data or running your browser in “incognito or private browsing” mode.