Fleet and GPS Connectivity Problems

Why Northern Ontario is genuinely harder on connectivity

Cell towers are spaced further apart across the highways connecting Sudbury, North Bay, Espanola, Elliot Lake, and Sault Ste. Marie than they are in southern Ontario, and long stretches of Highway 17, 69, and 144 run through terrain with limited coverage. A GPS or telematics unit that works flawlessly in the city will predictably lose signal on these routes, and no software fix changes the physical coverage available at a given location.

Device and antenna placement

A surprising share of GPS connectivity complaints trace back to where the device or antenna sits in the vehicle. Metal cab roofs, aftermarket window tint, and interior mounting positions can all attenuate cellular and GPS signal significantly.

• Mount external antennas on the exterior of the cab where possible, not behind metal or tinted glass
• Keep telematics units away from other electronics that can cause interference
• Use a properly rated cellular antenna, not the smallest unit that happened to be in stock
• Verify GPS antennas have a clear view of the sky, not tucked under the dash

Firmware and device health

Telematics and GPS units run their own firmware, and outdated firmware can cause devices to lose their cellular connection or fail to reconnect properly after a dead zone. Devices that haven't been remotely updated in months are a common, overlooked cause of intermittent tracking gaps.

Account, SIM, and data-plan issues

GPS and telematics devices typically use dedicated cellular data SIMs, and those accounts can lapse, hit data caps, or get suspended without an obvious alert reaching dispatch. A device that suddenly stops reporting after working fine for months is worth checking against the carrier's account status before assuming it's a hardware failure.

Where dispatch software sync problems overlap

GPS connectivity gaps often show up alongside the dispatch sync issues covered in our article on dispatch software sync problems, since both depend on the same underlying cellular connection. Fixing one frequently improves the other.

Practical steps that reduce dropouts

1. Map known dead zones along your regular routes and set dispatcher expectations accordingly
2. Check and correct antenna placement on vehicles with chronic tracking gaps
3. Push firmware updates to telematics devices on a regular schedule
4. Confirm SIM and data-plan status for devices reporting no signal at all
5. Consider dual-carrier or roaming-enabled SIMs for routes with known single-carrier gaps

When connectivity redundancy makes sense

For carriers running consistent long-haul routes with known dead zones, dual-SIM or dual-carrier telematics hardware can measurably reduce tracking gaps, since a route without coverage on one network may have partial coverage on another. This is the same redundancy principle we apply to yard and dispatch office networking, covered in warehouse and dispatch office Wi-Fi, and to network and Wi-Fi design generally.

Frequently asked questions