hello, the api url change try this (it's working for me)    https://your-ip:5001/webapi/auth.cgi?api=SYNO.API.Auth&version=3&method=login&account=admin&passwd=your_admin_password&format= cookie   the other url (for activation) not change   https://URL:PORT/webapi/entry.cgi?api=SYNO.ActiveBackup.Activation&method=set&version=1&activated=true&serial_number="SERIALNUMBER"   regards
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