diff --git a/oml/localnodes.py b/oml/localnodes.py
index 8fb7eb5..6bf9233 100644
--- a/oml/localnodes.py
+++ b/oml/localnodes.py
@@ -70,7 +70,8 @@ class LocalNodes(dict):
 
     def _update_if_ip_changed(self):
         local_ips = get_broadcast_interfaces()
-        if local_ips != self.local_ips:
+        username = settings.preferences.get('username', 'anonymous')
+        if local_ips != self.local_ips or self.username != username:
             self.close()
             self.setup()
 
@@ -88,8 +89,9 @@ class LocalNodes(dict):
 
         local_name = socket.gethostname().partition('.')[0] + '.local.'
         port = settings.server['node_port']
+        self.username = settings.preferences.get('username', 'anonymous')
         desc = {
-            'username': settings.preferences.get('username', 'anonymous')
+            'username': self.username
         }
         self.local_info = []
         for i, local_ip in enumerate(get_broadcast_interfaces()):