Hi, AndyB2013
welcome to the community and raise your issue here.
I guess it is caused by your WiFi, could you please bridge your vm network with your cable network adpater, instead of the WiFi, then to see the VM connection is stable or not?
you can complete the configuration through "Edit--Virtual network editor", then selct vmNet0 in the top table and select cable network adpater to bridge in below.
Regards
xisheng