34:c3:d2:32:82:d8 is not the MAC address of the dongle, which is 7C:DD:90:B7:69:F2, so that connection is being made using the internal WiFi.
You probably need to disable the internal WiFi. According to this post, you should add the line blacklist r8189es to file /etc/modules, though I can see no mention of r8189* in the log. Perhaps @sam_nazarko can advise.
Edit: I read to the end of the thread and r8189es was a typo by Sam. The line should be blacklist 8189es.