@Joseph_Meyer1 the device sync code is pretty much one to one with device’s IP addresses. These usually are given by the wifi router DHCP service.
I’d suggest to check your wifi router/hotspot settings to make sure DHCP lease time is long enough and that devices are not assigned the same IP addresses.
The following article has some additional details at the end on how to get additional technical info about device’s wifi - Syncing with PractiScore app for Android running on Chromebook or in Bluestacks