Hi,
I think the particular Active Directory account might be blocked by IT policy or security software to connect the Office.com.
Firstly, disable the firewall and antivirus. Then, try to download the template manually.
Allow *.msecnd.net inside your firewall that is being used to download template.
If your connection is having problem, then do the following:
1. Start Command Prompt with administrative privilege by right-clicking on it and selecting Run as administrator.
2. Run the following commands simultaneously:
ipconfig /release
ipconfig /renew
3. Try to download the template.
If youre still unable to use the template, you have to get the template manually from Microsoft. Download the template you want form here.
Now, open the application you want to use your custom template, for example, Word or Excel.
1. From the File tab, select Options.
2. Select Save from the left panel menu.
3. Find out the field Default personal templates location. Enter your customized template folder.
4. Press OK.
5. Copy the template(s) you have downloaded from Microsoft and paste them there.
Regards,
George Zhao
TechNet Community Support