The Problem
Your Zap shows:
✅ Green Power LED is on
❌ Blue Status LED blinks briefly then turns off
❌ Cannot find device in Sourceful app
This indicates your Zap has WiFi credentials saved but cannot connect to the network.
Understanding the Status LED
The Status LED is the blue LED next to the reset button. Its behaviors tell you the WiFi state:
Status LED Pattern | Meaning | Status |
Solid blue | No WiFi configured | Ready for setup |
Single blink then off | WiFi saved but can't connect | Your issue |
Single blink at startup then a double blink after some time. | The double blink indicates that the Zap has connected to the configured WiFi network. | Working normally |
Why This Happens
Your Zap remembers WiFi settings but can't connect because:
Network changes
Router replaced or reset
WiFi password changed
Network name (SSID) changed
Router upgraded from 2.4GHz to 5GHz only
Configuration issues
Zap trying to connect to 5GHz (only supports 2.4GHz)
Router has disabled 2.4GHz band
MAC filtering blocking new devices
DHCP pool full (no IP addresses available)
Signal problems
Meter location has poor WiFi coverage
Metal meter cabinet blocking signal
Router too far away
Solution: Factory Reset and Reconnect
Keep Zap connected to meter
Press and hold button firmly (should feel click)
Watch Status LED for changes:
2-5 seconds: LED blinks slowly
5+ seconds: LED blinks rapidly
Release when rapidly blinking
Status LED should stay solid = reset successful
Ensuring 2.4GHz Network
Most routers support both bands. To check:
Router Admin Panel:
Access router (usually 192.168.1.1)
Find Wireless/WiFi settings
Enable 2.4GHz band if disabled
Consider separate SSIDs:
"HomeWiFi_2.4G" for 2.4GHz
"HomeWiFi_5G" for 5GHz
Common Router Locations:
TP-Link: Advanced → Wireless → Wireless Settings
Netgear: Wireless → Wireless Settings
Asus: Wireless → General
Linksys: Wireless → Basic Settings
If Reset Button Not Working
Physical checks:
Use pen tip for firmer press
Should feel/hear small click
Try USB-C power instead of meter power
Check for debris blocking button
Alternative approach:
Power Zap via USB-C only
Attempt reset again
If still unresponsive, contact support
Still Having Issues?
Document for support:
Which reset method tried
LED behaviors observed
Router make/model
Network configuration (2.4/5GHz)
Video of LED behavior if possible
Common solutions:
Move router closer or add WiFi extender
Create dedicated 2.4GHz network for IoT devices
Disable MAC filtering temporarily
Increase DHCP pool size
Prevention Tips
To avoid future connection issues:
Keep 2.4GHz network active even if you prefer 5GHz
Document Zap's network for future reference
Test after router changes to ensure connection
Update app for latest compatibility
Remember: The single blink means Zap knows your WiFi but can't reach it. A proper reset returns it to setup mode (solid LED) so you can reconfigure with current network details.