![]() Does anyone know of a solution to this problem? I have tested this issue on both the Panasonic recommended driver and the latest driver offered by Sierra Wireless and got the same results.Īt this point, I’m out of ideas on where to go next. So far, the only way that I have found to reset this timer is using AT!RESET or power cycling the card. I found that the reason the COM port was closing was because the card itself was rebooting as the uptime timer in AT!GSTATUS was being reset. All the laptops are running Windows 10 v20H2 and the tracking software accesses the GPS via the NMEA COM port.Īfter doing some troubleshooting in these laptops, I found that the COM port was randomly closing and would only reinitialize once either the tracking software or the laptop restarted. After the switch over, we began experiencing issues where the vehicles would random disappear off the tracking map. We recently switched from using external USB GPS pucks to using the EM7355’s internal GPS receiver for our vehicle tracking software. ![]() We have a fleet of Panasonic CF-53 MK4 laptops with Sierra Wireless EM7355 air cards. ![]()
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