Asset Tracker V2: No GPS, GPS AT commands don't seem to work

Thanks in advance for the help.

I connected my 9160DK (V1.0.1), loaded Asset Tracker V2, etc., and seem to be connected to nrfCloud fine. 

I don't seem to ever receive GPS data. 

It is snowing and I don't have a box for the DK so I have it beside a window instead of outside. All my other hardware, even those with primitive GPS, usually lock near that window.

the LTE Link Monitor shows all green and

event_manager: GPS_EVT_TIMEOUT

I would like to query the GPS to determine if it is enabled, etc.. 

If I attempt follow these examples

https://developer.nordicsemi.com/nRF_Connect_SDK/doc/latest/nrf/applications/serial_lte_modem/doc/GNSS_AT_commands.html the

AT commands do not work. For example, if I enter 

AT%XSYSTEMMODE=0,0,1,0

I get
11:03:57.569
Error: 'AT%XSYSTEMMODE=0,0,1,0 ' timed out
I get a similar message for 
at#xgps=1,1

Because much of the set up documentation seems to apply to earlier hardware and software I do not know how to proceed.
I assume the GPS is disabled but I do not know how to enable it.


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