diff --git a/app/main.py b/app/main.py
index 8825e36..d430c19 100644
--- a/app/main.py
+++ b/app/main.py
@@ -265,9 +265,11 @@ async def _ha_replicate_to_ha(request: Request, background_tasks: BackgroundTask
     if HA_REPLICATE is None or HA_ROLE is None:
         logger.warning('HA replicate endpoint triggerd, but no value for "HA_REPLICATE" or "HA_ROLE" is set!')
         return JSONr(status_code=503, content={'status': 503, 'detail': 'no value for "HA_REPLICATE" or "HA_ROLE" set'})
+
     session = sessionmaker(bind=db)()
-    origins = session.query(Origin).all()
-    leases = session.query(Lease).all()
+    origins = [origin.serialize() for origin in session.query(Origin).all()]
+    leases = [lease.serialize(renewal_period=LEASE_RENEWAL_PERIOD, renewal_delta=LEASE_RENEWAL_DELTA) for lease in session.query(Lease).all()]
+
     background_tasks.add_task(ha_replicate, logger, HA_REPLICATE, HA_ROLE, VERSION, DLS_URL, DLS_PORT, SITE_KEY_XID, INSTANCE_REF, origins, leases)
     return JSONr(status_code=202, content=None)
 
@@ -295,7 +297,7 @@ async def _ha_replicate_by_ha(request: Request):
         logger.error(f'Version missmatch on HA replication task!')
         return JSONr(status_code=503, content={'status': 503, 'detail': 'Missmatch for "INSTANCE_REF"'})
 
-    sync_timestamp, max_seconds_behind = j.get('sync_timestamp'), 30
+    sync_timestamp, max_seconds_behind = datetime.fromisoformat(j.get('sync_timestamp')), 30
     if sync_timestamp <= cur_time - timedelta(seconds=max_seconds_behind):
         logger.error(f'Request time more than {max_seconds_behind}s behind!')
         return JSONr(status_code=503, content={'status': 503, 'detail': 'Request time behind'})
@@ -310,7 +312,7 @@ async def _ha_replicate_by_ha(request: Request):
     for lease in leases:
         lease_ref = lease.get('lease_ref')
         x = Lease.find_by_lease_ref(db, lease_ref)
-        if x.lease_updated > remote_time:
+        if x is not None and x.lease_updated > sync_timestamp:
             continue
         logging.info(f'> [    ha    ]: lease {lease_ref}')
         data = Lease.deserialize(lease)
diff --git a/app/orm.py b/app/orm.py
index d7f5570..c4795ba 100644
--- a/app/orm.py
+++ b/app/orm.py
@@ -110,10 +110,9 @@ class Lease(Base):
         return Lease(
             lease_ref=j.get('lease_ref'),
             origin_ref=j.get('origin_ref'),
-            lease_created=j.get('lease_created'),
-            lease_expires=j.get('lease_expires'),
-            lease_updated=j.get('lease_updated'),
-            lease_renewal=j.get('lease_renewal'),
+            lease_created=datetime.fromisoformat(j.get('lease_created')),
+            lease_expires=datetime.fromisoformat(j.get('lease_expires')),
+            lease_updated=datetime.fromisoformat(j.get('lease_updated')),
         )
 
     @staticmethod
diff --git a/app/util.py b/app/util.py
index 1b66999..7113543 100644
--- a/app/util.py
+++ b/app/util.py
@@ -28,23 +28,27 @@ def generate_key() -> "RsaKey":
     return RSA.generate(bits=2048)
 
 
-def ha_replicate(logger: "logging.Logger", ha_replicate: str, ha_role: str, version: str, dls_url: str, dls_port: int, site_key_xid: str, instance_ref: str, origins: list["Origin"], leases: list["Lease"]):
+def ha_replicate(logger: "logging.Logger", ha_replicate: str, ha_role: str, version: str, dls_url: str, dls_port: int, site_key_xid: str, instance_ref: str, origins: list, leases: list) -> bool:
     from datetime import datetime
     import httpx
 
+    if f'{dls_url}:{dls_port}' == ha_replicate:
+        logger.error(f'Failed to replicate this node ({ha_role}) to "{ha_replicate}": can\'t replicate to itself')
+        return False
+
     data = {
         'VERSION': str(version),
         'HA_REPLICATE': f'{dls_url}:{dls_port}',
         'SITE_KEY_XID': str(site_key_xid),
         'INSTANCE_REF': str(instance_ref),
-        'origins': [origin.serialize() for origin in origins],
-        'leases': [lease.serialize() for lease in leases],
+        'origins': origins,
+        'leases': leases,
         'sync_timestamp': datetime.utcnow().isoformat(),
     }
 
     r = httpx.put(f'https://{ha_replicate}/-/ha/replicate', json=data, verify=False)
     if r.status_code == 202:
         logger.info(f'Successfully replicated this node ({ha_role}) to "{ha_replicate}".')
-    else:
-        logger.error(f'Failed to replicate this node ({ha_role}) to "{ha_replicate}": {r.status_code} - {r.content}')
-
+        return True
+    logger.error(f'Failed to replicate this node ({ha_role}) to "{ha_replicate}": {r.status_code} - {r.content}')
+    return False