diff --git a/src/constants.js b/src/constants.js
index 2e248cd..ee5d1ce 100644
--- a/src/constants.js
+++ b/src/constants.js
@@ -109,6 +109,7 @@ const ZITI_CONSTANTS =
     'ZITI_EVENT_NESTED_TLS_HANDSHAKE_TIMEOUT':     'nestedTLSHandshakeTimeout',
     'ZITI_EVENT_NO_CONFIG_PROTOCOL_FOR_SERVICE':  'noConfigProtocolForServiceEvent',
     'ZITI_EVENT_WSS_ROUTER_CONNECTION_ERROR':  'WSSEnabledEdgeRouterConnectionErrorEvent',
+    'ZITI_EVENT_CONTROLLER_CONNECTION_ERROR':  'ControllerConnectionErrorEvent',
 
     /**
      * Name of event indicating encrypted data for a nestedTLS connection has arrived and needs decryption
diff --git a/src/context/context.js b/src/context/context.js
index 0b396c9..a4d9a86 100644
--- a/src/context/context.js
+++ b/src/context/context.js
@@ -1095,8 +1095,14 @@ class ZitiContext extends EventEmitter {
    */
   async listControllerVersion() {
      
+    let self = this;
+
     let res = await this._zitiBrowzerEdgeClient.listVersion({ 
     }).catch((error) => {
+      // Let listeners know we failed to connect to the Controller
+      self.emit(ZITI_CONSTANTS.ZITI_EVENT_CONTROLLER_CONNECTION_ERROR, {
+        controllerApi: self.controllerApi,
+      });
       throw error;
     });