ATM Wireless Modem vs. Internet vs. Phone Line: Which Is Best?
Written by the myFloridaATM.com install team — Winter Park-based, ATM-only techs with 10 years and 75+ installs across Central Florida. Last updated October 20, 2026.
What is the best way to connect an ATM?
Short answer: For most Florida businesses, a cellular wireless modem is the best way to connect an ATM: it needs no dedicated line, installs quickly, and keeps the ATM online when store internet goes down during storms. Ethernet is cheap and fast but fails when your internet does; dial-up phone lines still work but are slower and increasingly rare.
The Central Florida Angle
In Central Florida, storm resilience is the deciding factor:
- Afternoon thunderstorms regularly knock out plaza internet for hours.
- Cellular networks usually recover faster than cable internet after outages.
- Metal buildings can block signal — we test before installing.
Which cellular carrier works best for ATMs here?
It depends on your exact location. We test signal strength on site.
Comparison
| Wireless modem | Internet (Ethernet) | Phone line | |
|---|---|---|---|
| Setup | Fast, no wiring | Needs network drop | Needs landline |
| Monthly cost | Data plan | Uses existing internet | Phone bill |
| Storm resilience | High | Depends on your ISP | Moderate |
| Speed | Fast | Fast | Slow |
| Best for | Most locations | Stable networks with backup | Legacy setups |
Frequently Asked Questions
Does an ATM need internet?
No. A cellular wireless modem connects the ATM without store internet.
Can I use my store Wi-Fi for an ATM?
We don’t recommend relying on store Wi-Fi alone; a wired or cellular connection is more reliable and secure.
Why does my ATM keep losing connection?
Common causes include weak cellular signal, network outages or loose cables. A local tech can test signal and reposition the antenna.
Related: ATM processing · ATM error codes · Installation checklist
Get your free ATM: call (786) 554-3977 or check if your business qualifies. For qualifying businesses. No upfront cost — we install, maintain and service it.
