diff --git a/csaxs_bec/bec_ipython_client/plugins/flomni/flomni_webpage_generator.py b/csaxs_bec/bec_ipython_client/plugins/flomni/flomni_webpage_generator.py
index 945856a..a11c6da 100644
--- a/csaxs_bec/bec_ipython_client/plugins/flomni/flomni_webpage_generator.py
+++ b/csaxs_bec/bec_ipython_client/plugins/flomni/flomni_webpage_generator.py
@@ -237,7 +237,7 @@ class HttpUploader:
         self._busy     = False   # True while an upload thread is running
         self._warn_at: dict[str, float] = {}    # key -> epoch of last warning
 
-    _WARN_COOLDOWN_S = 60   # only repeat the same warning once per minute
+    _WARN_COOLDOWN_S = 600   # only repeat the same warning once per minute
 
     def _warn(self, key: str, msg: str) -> None:
         """Log a warning at most once per _WARN_COOLDOWN_S for a given key."""