I have a handful of Panasonic CF-33’s, all of which have the EM7455 card with LTE service via Verizon. Currently, four of these units are in service. One of which has been flawless since day 1 several months ago. The other three, put in service last week, are very slow with GPS coordinates or even stuck. Positioning is at least 60-90 seconds behind realtime location and can get up to several minutes delayed, if at all. I am at my end figuring this out as I have never seen this behavior before. I have well over 100 Dell laptops with their DW Gobi product manufactured by Sierra Wireless, all using the GPS without problems. But these three units are making me pull my hair out.
All three of them are running Windows 10 1803. Drivers and firmware are up to date. Using the Sierra Skylight connection manager.
Would anyone be able to point me in a workable direction?