diff --git a/apps/abs/views.py b/apps/abs/views.py
index be7cfe0..1cb2f25 100644
--- a/apps/abs/views.py
+++ b/apps/abs/views.py
@@ -257,6 +257,7 @@ def start(request, id_conf, id_beam):
     for i, beam in enumerate(beams_list):
         if i==int(id_beam):
             conf.active_beam = beam.pk
+            conf.save()
             break
 
     return HttpResponse(json.dumps({'result':1}), content_type='application/json')
diff --git a/devices/dds/api.py b/devices/dds/api.py
index e34f131..3e40709 100644
--- a/devices/dds/api.py
+++ b/devices/dds/api.py
@@ -22,7 +22,7 @@ answer = enable_rf(ip, port)
 import json
 from devices.dds import data
 
-from devices.jro_device import eth_device, IdClass
+from devices.jro_device import eth_device, eth_devices, IdClass
 
 ID_CLASS = IdClass["dds"]
 
@@ -54,11 +54,16 @@ def reset():
 
     return cmd, payload
 
-@eth_device(ID_CLASS)
+@eth_devices(ID_CLASS)
 def change_ip(new_ip, mask="255.255.255.0", gateway="0.0.0.0"):
 
     cmd = CMD_CHANGEIP
-    payload = new_ip + '/' + mask + '/' + gateway
+    payload = b''
+    payload += new_ip.encode()
+    payload += b'/'
+    payload += mask.encode()
+    payload += b'/'
+    payload += gateway.encode()
 
     return cmd, payload
 
diff --git a/devices/jro_device.py b/devices/jro_device.py
index e2a167f..ee5b96d 100644
--- a/devices/jro_device.py
+++ b/devices/jro_device.py
@@ -412,3 +412,18 @@ def eth_device(id_class):
 
         return func_wrapper
     return inner_func
+
+def eth_devices(id_class):
+    def inner_func(func):
+        def func_wrapper(ip, port, **kwargs):
+
+            cmd, payload = func(**kwargs)
+
+            ipObj = IPData(ip, port, id_class=id_class)
+            rx = ipObj.sendData(cmd, payload)
+            
+            return rx
+
+        return func_wrapper
+    return inner_func
+