diff --git a/src/opengnsys/RESTApi.py b/src/opengnsys/RESTApi.py
index 3abcfc9..a59630e 100644
--- a/src/opengnsys/RESTApi.py
+++ b/src/opengnsys/RESTApi.py
@@ -58,8 +58,12 @@ class ConnectionError(RESTError):
 # Disable warnings log messages
 try:
     import urllib3  # @UnusedImport
+    requests_log = logging.getLogger ('urllib3')
+    requests_log.setLevel (logging.INFO)
 except Exception:
     from requests.packages import urllib3  # @Reimport
+    requests_log = logging.getLogger ('requests.packages.urllib3')
+    requests_log.setLevel (logging.INFO)
 
 try:
     urllib3.disable_warnings()  # @UndefinedVariable
@@ -148,7 +152,9 @@ class REST(object):
                 raise Exception (f'response content-type is not "application/json" but "{ct}"')
             r = json.loads(r.content)  # Using instead of r.json() to make compatible with old requests lib versions
         except requests.exceptions.RequestException as e:
-            raise ConnectionError(e)
+            code = e.response.status_code
+            logger.warning (f'request failed, HTTP code "{code}"')
+            return None
         except Exception as e:
             raise ConnectionError(exceptionToMessage(e))
 
@@ -160,13 +166,13 @@ class REST(object):
         @param data: if None or omitted, message will be a GET, else it will send a POST
         @param processData: if True, data will be serialized to json before sending, else, data will be sent as "raw" 
         """
-        logger.debug('Invoking post message {} with data {}'.format(msg, data))
+        #logger.debug('Invoking post message {} with data {}'.format(msg, data))
 
         if processData and data is not None:
             data = json.dumps(data)
 
         url = self._getUrl(msg)
-        logger.debug('Requesting {}'.format(url))
+        #logger.debug('Requesting {}'.format(url))
 
         try:
             res = self._request(url, data)
diff --git a/src/opengnsys/workers/oglive_worker.py b/src/opengnsys/workers/oglive_worker.py
index 0347dad..78a7883 100644
--- a/src/opengnsys/workers/oglive_worker.py
+++ b/src/opengnsys/workers/oglive_worker.py
@@ -198,7 +198,7 @@ class ogLiveWorker(ServerWorker):
         progress = None
         for i in ary:
             if m := re.search (r'^\[([0-9]+)\]', i):     ## look for strings like '[10]', '[60]'
-                logger.debug (f"matched regex, m.groups ({m.groups()})")
+                #logger.debug (f"matched regex, m.groups ({m.groups()})")
                 progress = float (m.groups()[0]) / 100
         return progress
 
@@ -211,7 +211,7 @@ class ogLiveWorker(ServerWorker):
                 for k in self.thread_list:
                     elem = self.thread_list[k]
                     if 'thread' not in elem: continue
-                    logger.debug (f'considering thread ({k})')
+                    #logger.debug (f'considering thread ({k})')
 
                     if self.pid_q:
                         if not self.pid_q.empty():
@@ -240,11 +240,20 @@ class ogLiveWorker(ServerWorker):
             time.sleep (1)
             n += 1
             if not n % 10:
+                alive_threads = []
+                for k in self.thread_list:
+                    elem = self.thread_list[k]
+                    if 'thread' not in elem: continue
+                    alive_threads.append (k)
+                if alive_threads:
+                    s = ','.join (alive_threads)
+                    logger.debug (f'alive threads: {s}')
+
                 body = {
                     'iph': self.IPlocal,
                     'timestamp': int (time.time()),
                 }
-                logger.debug (f'about to send ping ({body})')
+                #logger.debug (f'about to send ping ({body})')
                 self.REST.sendMessage ('clients/status/webhook', body)
 
     def interfaceAdmin (self, method, parametros=[]):
@@ -277,7 +286,8 @@ class ogLiveWorker(ServerWorker):
             self.pid_q.put (p.pid)
         else:
             ## esto sucede por ejemplo cuando arranca el agente, que estamos en interfaceAdmin() en el mismo hilo, sin _long_running_job ni hilo separado
-            logger.debug ('no queue--not writing any PID to it')
+            #logger.debug ('no queue--not writing any PID to it')
+            pass
 
         sout = serr = ''
         while p.poll() is None:
@@ -293,12 +303,12 @@ class ogLiveWorker(ServerWorker):
         serr = serr.strip()
 
         ## DEBUG
-        logger.info (f'stdout follows:')
+        logger.debug (f'stdout follows:')
         for l in sout.splitlines():
-            logger.info (f'  {l}')
-        logger.info (f'stderr follows:')
-        for l in serr.splitlines():
-            logger.info (f'  {l}')
+            logger.debug (f'  {l}')
+        #logger.debug (f'stderr follows:')
+        #for l in serr.splitlines():
+        #    logger.debug (f'  {l}')
         ## /DEBUG
         if 0 != p.returncode:
             cmd_txt = ' '.join (proc)
@@ -337,9 +347,7 @@ class ogLiveWorker(ServerWorker):
         res = self.REST.sendMessage ('/'.join ([self.name, path]), obj)
 
         if (type (res) is not dict):
-            #logger.error ('No se ha podido establecer conexión con el Servidor de Administración')   ## Error de conexión con el servidor
-            logger.debug (f'res ({res})')
-            logger.error ('Error al enviar trama ***send() fallo')
+            logger.error (f'response is not a dict ({res})')
             return False
 
         return res
@@ -366,9 +374,7 @@ class ogLiveWorker(ServerWorker):
         p = subprocess.Popen (['/usr/bin/browser', '-qws', url])
         try:
             p.wait (2)       ## if the process dies before 2 seconds...
-            logger.error ('Error al ejecutar la llamada a la interface de administración')
-            logger.error ('Error en la creación del proceso hijo')
-            logger.error ('return code "{}"'.format (p.returncode))
+            logger.error ('Error al ejecutar browser, return code "{}"'.format (p.returncode))
             return False
         except subprocess.TimeoutExpired:
             pass
@@ -388,7 +394,7 @@ class ogLiveWorker(ServerWorker):
             logger.error (e)
             logger.error ('No se ha podido recuperar la dirección IP del cliente')
             return None
-        logger.debug ('parametroscfg ({})'.format (parametroscfg))
+        #logger.debug ('parametroscfg ({})'.format (parametroscfg))
         return parametroscfg
 
     def cfg2obj (self, cfg):