What log in credentials you mentioned? Power bi account or datasource credentials? (These scenario not appears on my side)
Can you confirm if your device contains any rule/setting to control write permission? Any restore feature enabled?
It will be help if you share more detail contents about your scenario.
so sorry for the late response. I was talking about the PBI account, not data source credentials.
I'm not quite sure what you mean with rules/settings to control my write permission and what restore features you was talking about.
I'm having the same issue on my work PC as well as on my home PC - where I definitely have all the permissions and no strange network administrator rules...
Actually, it seems like a known issue(fixed in mar 2018), have you test with last version of power bi?
I still can't reproduce your issue, have you test in other device or network? Does same issue appears?
In addition, you can also use fiddler to trace you login operations and submit a support ticket with these traced session to power bi team to get further support.