MS Project 2016 無法登入"很抱歉 發生暫時性的伺服器問題"

 在使用租用一年的MS Project2016版時，要先去office365下載安裝程式，安裝完後執行程式時，需要做登入，登入有授權使用的帳號，才能使用Project上的功能。

但按下登入時，無法正常出現登入的視窗提供輸入，反而是顯示"很抱歉 發生暫時性的伺服器問題"。

一開始以為是OS的問題，但試了其他台的WIN7 OR WIN10，都OK。

後來又想是不是本機office版本的問題，但在其他台office2010沒問題，在使用者上的2007或2010都不行。

最後發現使用者電腦只裝到IE9，試著升到IE11，Project的登入視窗就正常了，搞死人了。

"Unable to log in to MS Project 2016" Sorry, there was a temporary server issue.

When using the one-year subscription of MS Project 2016, you need to first download the installation program from Office 365. After installation, when you run the program, you are required to log in with an authorized account in order to access the features of Project.

However, when you click on the login button, the login window doesn't appear as expected and instead shows the message "Sorry, there was a temporary server issue."

Initially, it was thought to be an issue with the operating system (OS), but after trying on other computers running Windows 7 or Windows 10, it worked fine.

Later, it was considered that it might be an issue with the local version of Office, but on other computers with Office 2010, there were no problems. However, when using versions 2007 or 2010 on the user's computer, the issue persisted.

Finally, it was discovered that the user's computer had only Internet Explorer 9 installed. After upgrading to Internet Explorer 11, the login window for Project started functioning properly.