diff --git a/CLAUDE.md b/CLAUDE.md
index 655a735..add112a 100644
--- a/CLAUDE.md
+++ b/CLAUDE.md
@@ -44,7 +44,7 @@ title-bar controls). The rules that matter most:
 - `prodcom-listener/` — live ProdCom transcript web app. Zero-dependency Node
   `server.js` that serves `public/` and proxies `/prodcom/*` (including the SSE
   transcript stream) to the ProdCom API at `config.json → prodcomUrl`
-  (default `http://10.3.11.152:24480`). Good reference for: SSE handling,
+  (set per site; each campus runs its own). Good reference for: SSE handling,
   reconnect logic, channel colors/filtering, PWA install.
 - `band-lineup-display/` — backstage Electron app (stage lineup photos with
   mic/pack labels) plus ProPresenter Now/Next:
diff --git a/SPEC.md b/SPEC.md
index 048af6b..f72cbd6 100644
--- a/SPEC.md
+++ b/SPEC.md
@@ -129,7 +129,7 @@ modules/<id>/
   "minSize": { "w": 2, "h": 2 },
   "defaultSize": { "w": 4, "h": 3 },
   "configSchema": {
-    "prodcomUrl": { "type": "string", "label": "ProdCom URL", "default": "http://10.3.11.152:24480" },
+    "prodcomUrl": { "type": "string", "label": "ProdCom URL", "default": "" },
     "apiKey":     { "type": "password", "label": "API key (if PSK auth enabled)", "default": "" }
   },
   "instanceSchema": {
diff --git a/modules/prodcom-transcript/module.json b/modules/prodcom-transcript/module.json
index 55c4e04..2fecb62 100644
--- a/modules/prodcom-transcript/module.json
+++ b/modules/prodcom-transcript/module.json
@@ -1,7 +1,7 @@
 {
   "id": "prodcom-transcript",
   "name": "ProdCom",
-  "version": "1.3.0",
+  "version": "1.3.1",
   "proddash": ">=1.1.0",
   "description": "Live ProdCom transcript",
   "permissions": [
@@ -26,9 +26,10 @@
       "type": "endpoint",
       "label": "ProdCom server",
       "default": {
-        "host": "10.3.11.152",
+        "host": "",
         "port": 24480
-      }
+      },
+      "help": "The ProdCom server at THIS location — every campus has its own. Blank until you set it, so a new install never reads another campus's comms."
     },
     "apiKey": {
       "type": "password",
diff --git a/modules/prodcom-transcript/server.js b/modules/prodcom-transcript/server.js
index 3d9531f..73b40f0 100644
--- a/modules/prodcom-transcript/server.js
+++ b/modules/prodcom-transcript/server.js
@@ -269,6 +269,9 @@ module.exports = {
       streams,
       health() {
         if (status.state === 'ok') return { status: 'ok', message: `Live — ${channels.length} channel${channels.length === 1 ? '' : 's'}, ${entries.size} entries` };
+        // Nothing to connect to is a setting that is missing, not a link that
+        // is coming up — it reads red, like the other modules say it.
+        if (!target) return { status: 'error', message: status.message };
         return { status: status.state === 'error' ? 'error' : 'connecting', message: status.message };
       },
     };
diff --git a/prodcom-listener/README.md b/prodcom-listener/README.md
index 38ddbdc..f2adc31 100644
--- a/prodcom-listener/README.md
+++ b/prodcom-listener/README.md
@@ -38,7 +38,7 @@ Edit [config.json](config.json):
 
 | Key | Meaning |
 | --- | --- |
-| `prodcomUrl` | Where the ProdCom API lives (default `http://10.3.11.152:24480`) |
+| `prodcomUrl` | Where the ProdCom API lives — set it per site, e.g. `http://<prodcom-host>:24480` |
 | `port` | Port this listener serves on (default `24481`) |
 | `apiKey` | Only needed if PSK auth is enabled in ProdCom settings |
 
diff --git a/prodcom-listener/config.json b/prodcom-listener/config.json
index d3ff07e..60fb5f3 100644
--- a/prodcom-listener/config.json
+++ b/prodcom-listener/config.json
@@ -1,5 +1,5 @@
 {
-  "prodcomUrl": "http://10.3.11.152:24480",
+  "prodcomUrl": "",
   "port": 24481,
   "apiKey": ""
 }
diff --git a/prodcom-listener/server.js b/prodcom-listener/server.js
index a3cd2b1..937ed5b 100644
--- a/prodcom-listener/server.js
+++ b/prodcom-listener/server.js
@@ -23,10 +23,15 @@ try {
   console.warn('config.json not found or invalid, using defaults/env vars');
 }
 
-const PRODCOM_URL = process.env.PRODCOM_URL || cfg.prodcomUrl || 'http://10.3.11.152:24480';
+const PRODCOM_URL = process.env.PRODCOM_URL || cfg.prodcomUrl || '';
 const PORT = Number(process.env.PORT || cfg.port || 24481);
 const API_KEY = process.env.PRODCOM_API_KEY || cfg.apiKey || '';
 
+if (!PRODCOM_URL) {
+  console.error('No ProdCom API configured. Set prodcomUrl in config.json (or the PRODCOM_URL');
+  console.error('environment variable) to this site\'s ProdCom, e.g. http://<prodcom-host>:24480');
+  process.exit(1);
+}
 const target = new URL(PRODCOM_URL);
 const PUBLIC_DIR = path.join(__dirname, 'public');