diff --git a/config.js b/config.js
index 0209cf1..888ab55 100644
--- a/config.js
+++ b/config.js
@@ -9,7 +9,7 @@ module.exports = {
     webrtc_port_begin: parseInt(process.env.WEBRTC_PORT_BEGIN),
     session_limit: 100,
     log_path: "./logs/runtime.log",
-    webrtc_server_path: "C:/Users/c/Documents/Projects/pixel-streaming-webrtc/WebServers/SignallingWebServer/cirrus.js",
+    webrtc_server_path: "../pixel-streaming-webrtc/WebServers/SignallingWebServer/cirrus.js",
     app_args: {
         runtime: {
             port: "-PixelStreamingPort="
diff --git a/src/modules/port_alloc.js b/src/modules/port_alloc.js
index 8ee66ba..275c488 100644
--- a/src/modules/port_alloc.js
+++ b/src/modules/port_alloc.js
@@ -38,51 +38,3 @@ module.exports = {
     get_webrtc_port,
     get_app_port
 }
-
-// class port {
-//     constructor(value) {
-//         this.#value = value
-//         this.#free = true
-//     }
-//     get_value() {
-//         return this.#value
-//     }
-//     set_free() {
-//         this.#free = true
-//     }
-//     set_busy() {
-//         this.#free = false
-//     }
-//     is_free() {
-//         return this.#free
-//     }
-//     #value
-//     #free
-// }
-
-// class port_alloc {
-//     constructor(port_begin, count) {
-//         this.#ports = new Array()
-//         for (var i = port_begin; i < port_begin + count; ++i) {
-//             this.#ports.push(new port(i))
-//         }
-//     }
-//     get() {
-//         for (var i in this.#ports) {
-//             if (this.#ports[i].is_free()) {
-//                 this.#ports[i].set_busy()
-//                 return this.#ports[i].get_value()
-//             }
-//         }
-//         throw new Error('no free ports')
-//     }
-//     free(busy_port) {
-//         for (var i in this.#ports) {
-//             if (this.#ports[i].get_value() == busy_port) {
-//                 this.#ports[i].set_free()
-//                 return
-//             }
-//         }
-//     }
-//     #ports
-// }
\ No newline at end of file
diff --git a/tests/config.js b/tests/config.js
index b62c9c6..a2a9f6b 100644
--- a/tests/config.js
+++ b/tests/config.js
@@ -1,4 +1,5 @@
-var config = require('../config')
+const config = require('../config')
+const fs = require('fs')
 
 const not_valid = (message) => {
     console.error('not valid (config.js): ', message)
@@ -57,6 +58,13 @@ const test_config = () => {
         config_pass = false
     }
 
+    if (config.webrtc_server_path) {
+        if (!fs.existsSync(config.webrtc_server_path)) {
+            not_valid('wbertc_server_path exists in config BUT not in the filesystem (file not exists)')
+            config_pass = false
+        }
+    }
+
     if (!config.app_args) {
         not_valid('webrtc_server_path')
         config_pass = false