Login to China 21vianet customized domain account in PBI Desktop more easy
When China 21vianet user set a custom domain (eg. abc.com), it's hard to login to PBI Desktop with customized domain (eg. firstname.lastname@example.org)
Junwei Huang (MVP) commented
In this case, PBI Desktop will direct user to the International login page, but not China 21vianet page. So they're not able to login.