--- a/libs/hbb_common/src/config.rs
+++ b/libs/hbb_common/src/config.rs
@@ -804,7 +804,12 @@ impl Config {
                 id &= 0x1FFFFFFF;
                 Some(id.to_string())
             } else {
-                None
+                log::warn!("Failed to get MAC address. Fallback to random ID");
+                Some(
+                    rand::thread_rng()
+                        .gen_range(1_000_000_000..2_000_000_000)
+                        .to_string(),
+                )
             }
         }
     }