Nayax Card Readers: MQQT vs VPN Communication
MQTT vs VPN – Which Communication Is Better?
| Aspect |
VPN mode (IP-sec) |
MQTT mode (TLS 8883) |
| Connection method |
Opens full IP tunnel to Nayax |
Outbound encrypted publish/subscribe |
| Bandwidth overhead |
High (keep-alives, routing) |
Low (optimized for telemetry) |
| Carrier compatibility |
Often breaks behind NAT or IPv6 |
Rarely filtered – NAT-friendly |
| If disabled |
Lose legacy desktop tools |
All core services still work |
Bottom line: Stay on MQTT unless Nayax explicitly instructs otherwise.
2. T-Mobile MQT
| Parameter |
Value |
Notes |
| APN |
fast.t-mobile.com |
Public T-Mobile APN |
| Communication Mode |
MQTT Enabled |
Leave VPN unchecked |
| GSM Network ID |
310260 |
Improves network registration |
| MQTT Broker |
brokerir1.nayax.com:1883 |
Default Nayax broker |
| MQTT Ping Interval |
600s |
10-minute keep-alive |
3. Verizon MQTT Settings
| Parameter |
Value |
Notes |
| APN |
vzwinternet |
Dynamic IP default |
| Communication Mode |
MQTT Enabled |
VPN must remain OFF |
| GSM Network ID |
311480 |
Verizon PLMN code |
| Keep-Alive Interval |
2500s |
~42 minutes |
4. VPOS Touch MDB Level 3 Optimal Settings
| Setting |
Optimal Configuration |
Purpose |
| MDB Level |
3 |
Enables Always Idle mode |
| Contactless Delay |
1 second |
Prevents accidental double-tap |
| Decimal Place |
2 |
USD pricing format |
| EMV Contactless Limit |
9900¢ |
Max $99 tap-to-pay |
| Extended Card Support |
MAESTRO + DDA |
Accepts broader EMV cards |
| Country Code |
840 |
USA |
Buy the VPOS Touch here: VPOS Touch on VapeTM
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