Purpose: To assist users in identifying and resolving issues based on LED light indicators during Ray APN (Access Point Node) setup or operation. 


No LED Light – Power Issue

  • Meaning: Device has no power. 

  • Action: 

  • Check power adapter or PoE connection. 

  • Replace cable or adapter if necessary. 




Red LED – IP Address Issue 

  • Meaning: The APN is not receiving an IP address. 


Initial Checks: 

  1. Connect a laptop to the same network. 

  1. If the laptop gets an IP via DHCP, check the APN. 

  1. If the laptop does not get an IP, ask the customer to verify DHCP settings on their network. 

 

Solution – Method 1: Manual Configuration 

If DHCP is not used (Static IP, VLAN)  Guide to Configure Static IP – Click Here

  1. Connect APN directly to a PC. 

  1. Open a browser and access: http://192.168.33.33/ 

  1. Alternatively, connect to the WiFi SSID broadcasted by the AP (named with MAC address). 

  1. Use the MAC (from device label) as the WiFi password. 


Depending on the network setup: 

  • VLAN: Go to WAN interface → set VLAN ID and tagging. 

  • Static IP: Enter static IP, gateway, subnet, and DNS details. 


Red LED often means DHCP is not available, or VLAN tagging is misconfigured (e.g., wrong trunk, access/native VLAN on switch port). 


Solution – Method 2: Cloud Configuration 

If the AP is online via DHCP: 

  1. Go to https://cloud.ray.life 

  1. Login using Ray credentials. 

  1. Navigate to: 

 Access Points → AP Profiles 

  1. Choose the appropriate network mode: VLAN or Static IP.


 

Green LED – Firewall/Connectivity Issue 

  • Meaning: Device is blocked by the customer's firewall or cannot connect to the cloud. 


✅ Checklist for Firewall & Network Requirements: 

MAC Bypass for Access Point (Two MAC Addresses required) 

Example MACs: 

  • xx:xx:xx:xx:xx:6f 

  • xx:xx:xx:xx:xx:6g 


⚠️ Note: The last character or number in the MAC address should follow a sequential pattern for example: 

  • 6f → 6g 

  • 80 → 81 

  • v8 → v9 


This helps ensure the MACs are correctly paired for bypass  

 

Certificate Error (Regenerate Certificate)  

To resolve the certificate error: 

  1. Regenerate the certificate from the controller or device interface. 

  1. Reboot the Access Point by removing the PoE cable or disconnecting the power source. 

  1. Once powered back on, the device will apply the new certificate. 

 

 

Ports to Allow (Outbound Only): 

  • 8884 – MQTT (mqttcloud.ray.life) 

  • 443 – HTTPS (hubcloud.ray.life) 


Protocols Used: 

  • MQTT – for device-controller communication 

  • HTTPS – for registration & restarts 

  • Ping – for performance checks 


Domains to Whitelist: 

  • ray.life 

  • captivecloud.ray.life 

  • s3.amazonaws.com 

  • time1.google.com to time4.google.com (for NTP) 


Important: 

  • Firewalls must allow long-lived TCP connections. 

  • If hostname whitelisting fails, use IP address whitelisting. 

 Contact Ray Support to get the current IP list. 


Blue LED – Normal Operation 

  • Meaning: Device is connected to the internet and functioning correctly. 

  • Action: No action needed. Setup complete. 

 



Note: Access Point Keeps Rebooting? 

Check These Common Causes: 

1. Power Issue 

  • Make sure the power adapter or PoE cable is properly connected. 

  • Try a different port or power source. 

2. Low PoE Power 

  • Some APs need more power (PoE+). 

  • Confirm your switch or injector supports it. 

3. Overheating 

  • Keep the AP in a cool, well-ventilated place. 

4. Firmware Problem 

  • Update the firmware or do a factory reset. 

5. Network Conflicts 

  • Check for duplicate IPs or looping cables.