Sometimes, Battle.net fails to recognize the games installed on your PC. You need to locate them and make Battle.net scan them. To do so, The error you are seeing is ...
There are many reasons why you are getting the “Could not log in to Battle.net” message with error code BLZBNTBNA00000A8D, BLZBNTBNA00000A8E, or BLZBNTBNA00000A8F ...