RDM Finder

RDM Finder support

Set up the app, solve discovery and communication problems, and understand device or store limitations without disrupting the lighting network.

QUICK CHECKS

Check the current app flow first.

RDM Finder is designed for local lighting networks. A network can work correctly for Art-Net, sACN and RDM even when that network has no internet connection.

1

Join the lighting network

Connect the phone or tablet to the Wi-Fi or LAN that can reach the lighting node. Internet access is not required for normal local discovery and device communication.

2

Allow local-network access

On iPhone or iPad, enable Local Network for RDM Finder. On Android, allow the network permissions requested by the app.

3

Follow the subnet check

During Quick Start, a detected subnet mismatch shows the node IP and mask and prevents Next until the network path is corrected. Selecting another node runs the check again.

4

Node and fixture scans can be skipped

Quick Start allows you to skip node discovery or the fixture scan when you intentionally want to continue without them. If both are skipped, you can still finish the setup flow.

5

Patch shows online fixtures

The Patch view is intended for fixtures that are currently online. If a known fixture is missing there, first confirm that it is reachable and appears online in the app.

6

Separate local network from Pro internet access

If the lighting network is offline, local control can still work. Purchasing, restoring, managing or revalidating Pro may require a temporary internet connection. After a Pro purchase handoff, use Return to Lighting Network: RDM Finder first attempts the remembered lighting Wi-Fi where the OS permits it, otherwise the same action opens the system Wi-Fi screen.

GETTING STARTED

Use Quick Start without guessing.

The current setup flow checks the network before you start changing fixtures. Discovery steps are optional, while network conflicts are shown before you continue.

  1. 01

    Open Quick Start

    Start the guided setup and make sure the phone or tablet is already connected to the intended lighting network.

  2. 02

    Grant network access

    Accept the required local-network permissions. The lighting network itself does not need internet access for normal discovery or RDM communication.

  3. 03

    Discover or select a node

    Run node discovery and select the node you want to use. If no nodes are found, Quick Start stays on Step 3 and shows Open Wi-Fi settings as the primary action so you can join the lighting network, with Find nodes again as the secondary action when you return. You may still skip this step when appropriate. If the app reports a subnet mismatch, correct the phone/network addressing or choose another reachable node before continuing.

  4. 04

    Scan fixtures or continue without a scan

    Run the RDM fixture scan on the selected output/universe when you need discovered fixtures. The scan can also be skipped; Quick Start does not force a fixture scan.

  5. 05

    Finish and verify what is online

    Complete Quick Start, then use the Fixtures, Patch and Monitor views as needed. Before editing, confirm the correct node, output, universe, fixture and current values.

  6. 06

    Use Pro only when the store path is available

    Advanced Pro features can be used on an isolated lighting network after valid access has been established. If a reviewed Quick Patch needs Pro, the app keeps the Wizard and current Step 4 review pending while you temporarily use internet. After purchase, choose Return to Lighting Network. RDM Finder attempts the remembered Wi-Fi where supported, falls back to the system Wi-Fi screen when needed, and automatically checks the same gateway when you return. Step 4 remains open until you explicitly choose Apply Changes.

FAIRPHONE · /E/OS · APP LOUNGE

Known Pro purchase limitation.

This is a store compatibility issue, not an Art-Net, RDM or Wi-Fi discovery fault.

KNOWN STORE LIMITATION

“Purchases are not allowed for this store account or device.”

We encountered this on a Fairphone running /e/OS (Murena) with App Lounge. /e/OS documents that App Lounge can install Play Store apps, but in-app purchases are not supported. As a result, RDM Finder Pro cannot be purchased through App Lounge even when the app itself runs normally.

  • RDM Finder's Free features and local lighting-network communication are separate from this store limitation.
  • Do not change fixture, node, VLAN or RDM settings to solve this purchase message.
  • On this setup, Play Protect / store certification options may not be available in the same way as on a standard Google Play installation because App Lounge controls the store path.
  • To buy or restore Pro, use a supported Google Play Billing environment. App Lounge itself cannot complete an in-app purchase.

Official /e/OS App Lounge documentation ↗

NETWORK CHECKLIST

What to verify.

Exact menus differ between access points, managed switches and node manufacturers.

Wi-FiThe phone or tablet is connected to the intended lighting-network SSID, not a guest network. No-internet status alone does not mean the lighting network is unusable.
IP addressingThe mobile device and equipment have compatible IP addresses and subnet masks, or routing between their networks is configured. Use the Quick Start subnet warning as the first indicator.
IsolationWireless client isolation, AP isolation and guest policies do not block communication between wireless and wired devices.
BroadcastArt-Net broadcast traffic can reach the relevant network segment when broadcast discovery is used.
MulticastMulticast filtering, IGMP settings and VLAN rules permit the traffic required by the equipment and protocol in use.
RDM outputRDM is enabled on the correct physical port, and the selected universe or output matches the connected DMX line.
Physical lineDMX polarity, termination, cabling and splitters are suitable for bidirectional RDM communication.

COMMON QUESTIONS

RDM Finder support

The app does not find any nodes.

Use the recovery card in Network: the gold primary action is Open Wi-Fi settings. Connect to the intended lighting network, return to RDM Finder, then use the dark secondary Find nodes again action if needed. The raw no-node error is kept out of the normal screen, but if the same discovery problem occurs twice, Send diagnostics appears and includes that technical error plus the current network context for ANLC support. Review the Quick Start subnet result too, then check client isolation, VLANs, firewall, broadcast and multicast.

The node is visible, but RDM fixtures are not.

Confirm that RDM is enabled on the relevant node output, that the correct universe/output is selected, and that the physical DMX/RDM line is healthy. If a fixture rescan returns an unexpected warning or incomplete device-list error, use the Send diagnostics button shown directly with that message; you do not need to navigate to Settings first.

How do Android testers receive newer Google Play builds?

During the current Google Play test phase, RDM Finder checks Google Play once after startup without blocking the normal interface. If a newer build is available to that tester account, the app shows Update available with Update now and Later. Choosing Later only dismisses it for that app session. Testers can also use Settings → App updates → Check for updates. Offline startup remains silent.

Is the ELC dmXLAN NodeGBx series supported?

Possibly, but it has not yet been verified on physical NodeGBx hardware. RDM Finder includes an experimental standard Art-Net/RDM baseline for recognizable ELC dmXLAN NodeGBx 8 and NodeGBx 8 Slave nodes, including multi-output/multi-bind discovery. This does not guarantee compatibility with every firmware or configuration, and proprietary dmXLAN/rdmLAN node programming is not currently claimed. If you test a NodeGBx, please use Send diagnostics after unexpected discovery or RDM behaviour so ANLC can validate and refine support.

Why does the lighting Wi-Fi say “No internet”?

That can be normal. RDM Finder is designed to communicate with lighting equipment on the local network, so Art-Net, sACN and RDM workflows do not require internet access. Store actions such as buying Pro, Restore purchase or Manage / Cancel Subscription can require internet. When they do, RDM Finder shows an internet-help window with Open Wi-Fi settings instead of treating the local lighting network as broken.

Will Quick Patch restart after I switch Wi-Fi to unlock Pro?

No. If you reach Step 4 of 4 with a reviewed patch, RDM Finder keeps that Wizard step and reviewed plan while you temporarily switch to internet Wi-Fi for Pro. After purchase, choose Return to Lighting Network. The app tries the remembered Wi-Fi where supported and otherwise opens the system Wi-Fi screen; when you return, it checks the same selected gateway automatically. Apply Changes stays blocked until that gateway is found again, and nothing is applied automatically.

What happens after Apply Changes in Patch?

In both normal Patch and Quick Patch Wizard, every fixture shown with a green planned address is treated as approved when you apply the plan. A green fixture that is already on the planned address is marked DONE without a redundant RDM write; a fixture that needs an address change is marked DONE after the write is confirmed. If a required write fails, that fixture stays not-DONE. Gray/current fixtures are never marked DONE by Apply.

Why is a known fixture missing from Patch?

Patch only shows RDM fixtures that the app currently sees as online. If a known fixture is missing, confirm that it is powered on, that the DMX/RDM line is not interrupted by a loose or damaged cable, connector or splitter, and that the device actually supports RDM. A DMX-only fixture cannot be discovered as an RDM fixture. Also confirm that the fixture is reachable and shown as online, then refresh or run discovery again.

Why does iOS ask for Local Network access?

RDM Finder needs local-network access to discover and communicate with lighting equipment on your network. Denying that permission can prevent discovery or device communication.

How do I enable Local Network access again on iPhone or iPad?

Open Settings, find RDM Finder and enable Local Network. Depending on the iOS or iPadOS version, the setting may also appear under Settings, Privacy & Security, Local Network. Reopen RDM Finder after changing it.

I use a Fairphone with /e/OS and App Lounge. Why can’t I buy Pro?

App Lounge does not support in-app purchases. RDM Finder may therefore report that purchases are not allowed for the store account or device. This does not indicate a problem with RDM discovery or the lighting network. See the Fairphone /e/OS section above.

The node appears, but its information is incomplete.

Wait for discovery to finish and refresh the device. Confirm that the node supports the requested information and that no firewall, routing rule or unstable wireless link is interrupting replies. Include the node manufacturer, model and firmware version in a support request.

A setting does not change or returns to its old value.

The fixture may not support that parameter, may reject the requested value, or may be locked by its own configuration. Change one setting at a time, read it back, and check the fixture manufacturer’s RDM documentation.

Can I use RDM Finder through a VPN or over the internet?

RDM Finder is designed for equipment reachable on the local lighting network. VPNs and routed links do not always carry the broadcast or multicast traffic used for discovery. Test on the local network first.

Does RDM Finder change fixtures during discovery?

Discovery and reading device information are separate from intentional configuration changes. Before writing settings, verify that you selected the correct device and record the original value.

Does RDM Finder require an ANLC account?

No ANLC account is required for the normal local commissioning workflow. The app is designed to communicate directly with compatible equipment on the local network.

Where is app data stored?

RDM Finder processes app data locally on your device. See the RDM Finder privacy policy for storage, deletion and support-email details.

WORK SAFELY

Before changing equipment.

Confirm the selected device by its manufacturer label, model, RDM UID and physical location. Record the current address, personality and other critical settings before editing them.

Configuration changes can affect output, patching or show operation. Coordinate with the responsible technician, make changes one at a time, verify the result, and follow the equipment manufacturer’s documentation and site safety procedures.

CONTACT SUPPORT

Still stuck?

[email protected]

Use “RDM Finder support” in the subject line and include:

  • RDM Finder version
  • Phone or tablet model and operating-system version
  • App-store source (for example Google Play or /e/OS App Lounge) when the issue involves Pro or purchases
  • Node or gateway manufacturer, model and firmware
  • Network layout, IP range, VLAN and Wi-Fi details that are relevant
  • Fixture manufacturer and model when the issue involves RDM
  • What you expected, what happened and the exact steps to reproduce it
  • Screenshots or diagnostic files when useful

Do not send passwords, Wi-Fi keys, private keys or unrelated personal information. We use what you send to investigate and follow up on your request. See the RDM Finder privacy policy for details.