RSM Wi-Fi Recovery — Field Guide

RSM Wi-Fi Recovery — Field Guide

RSM Wi-Fi Recovery — Field Guide

AlertIMPORTANT: Captive portals, guest networks, or Wi-Fi networks with login timeouts are not supported.
The RSM cannot authenticate through web-based splash pages or maintain sessions that expire after inactivity.
Always connect to a standard WPA2/WPA3-secured network with persistent access.

Scope

For Raspberry Pi OS units (RSM) that lose Wi-Fi or fail to rejoin after Wi-Fi changes.

1. Basic Checks

  • Verify power LED solid; reseat PSU.
  • Disconnect nonessential USB devices.
  • Confirm proximity to AP, no RF interference.
  • Verify client SSID, passphrase, security type (WPA2/3), and 2.4 GHz availability.
  • Disconnect Ethernet if testing Wi-Fi only.

2. Reboot Sequence

sudo reboot

Or power-cycle (disconnect 10 s, then reconnect). Wait 60–90 s for reconnection.

3. Collect Wi-Fi Details

Record SSID, passphrase, security type, band, captive-portal status, and country.
Configure via raspi-config → System Options → Wireless LAN.

4. Reconnect via GUI (Keyboard/Mouse/Monitor)

Method A – Panel Icon

  1. Click Wi-Fi icon (top-right).
  2. Select SSID → enter password → verify connected.

Method B – If icon missing

  1. Right-click top panel → Add/Remove Panel Items.
  2. Add Wireless & Wired Network → connect via new icon.

Method C – Enable Radio

  1. Open Raspberry Pi Configuration → Localisation.
  2. Click Set WLAN Country… → choose correct region.

Verification

iwgetid -r
ip -4 addr show wlan0
ping -c3 8.8.8.8
ping -c3 google.com

5. SSH Reconnect via Avaya PBX Port

  1. Unplug cable from PBX; connect to laptop.
  2. Set static IP: 192.168.43.10 / 255.255.255.0 / Gateway & DNS blank.
  3. SSH:
    ssh pi@192.168.43.25
    If unreachable, scan subnet to find active IP.
  4. Run:
    sudo raspi-config
    Navigate System Options → Wireless LAN → SSID + Passphrase → Finish → Reboot.
  5. Restore cabling and DHCP on laptop.

6. Windows (PuTTY)

  1. Open PuTTY.
  2. Host Name: 192.168.43.25 → Open.
  3. Accept host key → log in.
  4. Run sudo raspi-config → update Wi-Fi.

For key auth: Connection → SSH → Auth → Private key file (.ppk) → Open.

7. macOS

ssh pi@192.168.43.25
sudo raspi-config

Navigate System Options → Wireless LAN → set credentials → reboot.

8. Post-Reconnect Validation

iwgetid -r
ip -4 route
ping -c3 8.8.8.8
ping -c3 google.com

Confirm RSM resumes check-ins or remote heartbeat.

9. If Still Not Joining

  • Re-enter SSID/passphrase exactly.
  • Ensure WLAN country set.
  • Confirm AP mode (WPA2/WPA3).
  • Check for MAC filtering.
  • If wpa_supplicant errors persist, reboot and retry.

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