I have been having some issues with ArcMap running and crashing due to the reference tile service provided by ESRI through the imagery with labels service. Whenever the labels are added to the map there are significant performance issues and the program will end up crashing. I have just recently upgraded from 10.5 to 10.6 and while the problem seemed to evident in the 10.5 install the 10.6 install seems to be unmanagable with this issue. Is anyone else having this problem? Or should I be talking to network people?