I have the following setup and I try to activate active backup application. DSM version: DSM 7.1.1-42962 Update 1 - baremetal - HP Proliant microserver GEN10+ I have tried the following:   https://my_IP:5001/webapi/auth.cgi?api=SYNO.API.Auth&version=3&method=login&account=my_user&passwd=my-password&format= cookie After the first link I get error403 - which means 403 One time password not specified.   https://my_IP:5001/webapi/entry.cgi