diff --git a/src/DIRAC/Core/Utilities/ElasticSearchDB.py b/src/DIRAC/Core/Utilities/ElasticSearchDB.py
index 465b17001a4..4d9897bc921 100644
--- a/src/DIRAC/Core/Utilities/ElasticSearchDB.py
+++ b/src/DIRAC/Core/Utilities/ElasticSearchDB.py
@@ -503,7 +503,7 @@ def bulk_index(self, indexPrefix, data=None, mapping=None, period="day", withTim
             res = bulk(client=self.client, index=indexName, actions=generateDocs(data, withTimeStamp))
         except (BulkIndexError, RequestError) as e:
             sLog.exception()
-            return S_ERROR(e)
+            return S_ERROR(f"Failed to index by bulk {e!r}")
 
         if res[0] == len(data):
             # we have inserted all documents...
diff --git a/src/DIRAC/DataManagementSystem/Agent/FTS3Agent.py b/src/DIRAC/DataManagementSystem/Agent/FTS3Agent.py
index 3b59495578b..4151a3fffb8 100644
--- a/src/DIRAC/DataManagementSystem/Agent/FTS3Agent.py
+++ b/src/DIRAC/DataManagementSystem/Agent/FTS3Agent.py
@@ -48,7 +48,10 @@
 AGENT_NAME = "DataManagement/FTS3Agent"
 
 # Lifetime in seconds of the proxy we download for submission
-PROXY_LIFETIME = 43200  # 12 hours
+# Because we force the redelegation if only a third is left,
+# and we want to have a quiet night (~12h)
+# let's make the lifetime 12*3 hours
+PROXY_LIFETIME = 36 * 3600  # 36 hours
 
 # Instead of querying many jobs at once,
 # which maximizes the possibility of race condition
diff --git a/src/DIRAC/DataManagementSystem/Client/FTS3Job.py b/src/DIRAC/DataManagementSystem/Client/FTS3Job.py
index 5a8645d93e8..94f3e4b021a 100644
--- a/src/DIRAC/DataManagementSystem/Client/FTS3Job.py
+++ b/src/DIRAC/DataManagementSystem/Client/FTS3Job.py
@@ -763,15 +763,13 @@ def generateContext(ftsServer, ucert, lifetime=25200):
             # decides that there is not enough timeleft.
             # At the moment, this is 1 hour, which effectively means that if you do
             # not submit a job for more than 1h, you have no valid proxy in FTS servers
-            # anymore. In future release of FTS3, the delegation will be triggered when
+            # anymore, and all the jobs failed. So we force it when
             # one third of the lifetime will be left.
             # Also, the proxy given as parameter might have less than "lifetime" left
             # since it is cached, but it does not matter, because in the FTS3Agent
             # we make sure that we renew it often enough
-            # Finally, FTS3 has an issue with handling the lifetime of the proxy,
-            # because it does not check all the chain. This is under discussion
-            # https://its.cern.ch/jira/browse/FTS-1575
-            fts3.delegate(context, lifetime=datetime.timedelta(seconds=lifetime))
+            td_lifetime = datetime.timedelta(seconds=lifetime)
+            fts3.delegate(context, lifetime=td_lifetime, delegate_when_lifetime_lt=td_lifetime // 3)
 
             return S_OK(context)
         except FTS3ClientException as e:
diff --git a/src/DIRAC/DataManagementSystem/ConfigTemplate.cfg b/src/DIRAC/DataManagementSystem/ConfigTemplate.cfg
index f6b84a764a3..ef20117d498 100644
--- a/src/DIRAC/DataManagementSystem/ConfigTemplate.cfg
+++ b/src/DIRAC/DataManagementSystem/ConfigTemplate.cfg
@@ -144,8 +144,8 @@ Agents
     KickAssignedHours  = 1
     # Max number of kicks per cycle
     KickLimitPerCycle = 100
-    # Lifetime in sec of the Proxy we download to delegate to FTS3 (default 12h)
-    ProxyLifetime = 43200
+    # Lifetime in sec of the Proxy we download to delegate to FTS3 (default 36h)
+    ProxyLifetime = 129600
   }
   ##END FTS3Agent
 }