Unfortunately that may indicate an issue with either something in the environment interfering with Z-wave radio, or a weakened Z-wave radio in the panel.
The last thing I would suggest is to try resetting the 2GIG Panel’s Z-wave controller in Z-wave > Advanced Settings.
Remove all devices, reset controller, then re-add the devices.
There are no wifi locks that I am aware of, battery power is a limitation. No wifi devices compatible with the alarm panel directly. Alternate lighting option is Lutron RadioRa 2 or Caseta. They do not use the Alarm panel for communication, but use their own wireless radio. The main hubs communicate with ADC via your internet.
If you still want to resolve, you might try a different model of lock, we do not generally recommend the Kwikset 910 due to it having only 5 buttons as this severely limits the number of possible combinations. A Yale or Schlage Z-wave lock may be a better bet, or a newer Kwikset. The 910 is I believe the oldest compatible model.
This may not improve signaling though, since you have tried two different locks. The issue seems a general signaling issue or specific to the panel itself.