Are you getting the error message:

Please check the NAS network preferences, and then reopen the app.

From Acronis True Image on your
Synology or Qnap.



You can solve this
by loading the page without ssl (https://).

Just use http:// and you may have to change the port at the end, the default DSM should be changed from :5001 to :5000

DSM example: 

http://"NAS-IP":5000/webman/3rdparty/AcronisTrueImage/index.html

Change "NAS-IP" to the address you got the error massage from in the first place.