diff --git a/cista/preview.py b/cista/preview.py
index 2a1552a..5a9ea91 100644
--- a/cista/preview.py
+++ b/cista/preview.py
@@ -12,6 +12,7 @@ from urllib.parse import unquote
 from wsgiref.handlers import format_date_time
 
 import httpx
+from mediapreview import CachedPreview, PreviewCache, is_previewable_path
 from mediapreview.formats import OFFICE_PREVIEW_SUFFIXES
 from mediapreview.formats import expected_backend as _expected_preview_backend
 from mediapreview.office import onlyoffice_error_short_text
@@ -30,7 +31,6 @@ from sanic.log import logger
 from cista import auth, config, sharefs, watching
 from cista.fileio import fuid
 from cista.util.filename import sanitize
-from mediapreview import CachedPreview, PreviewCache, is_previewable_path
 
 bp = Blueprint("preview", url_prefix="/preview")
 
diff --git a/cista/sanic_logging.py b/cista/sanic_logging.py
index 8e38fba..adf9d8b 100644
--- a/cista/sanic_logging.py
+++ b/cista/sanic_logging.py
@@ -286,9 +286,14 @@ def configure_main_logging() -> None:
     LOGGING_CONFIG_DEFAULTS["formatters"]["generic"] = {
         "class": "cista.sanic_logging._EmojiFormatter",
     }
-    # Silence websockets' built-in "connection closed" INFO messages; we log WS
-    # open/close ourselves in the custom access log instead.
-    logging.getLogger("websockets.server").setLevel(logging.WARNING)
+    # Sanic passes its "sanic.websockets" logger to websockets' ServerProtocol,
+    # so "connection closed" (websockets >= 17, INFO) and Sanic's own
+    # "Websocket timed out waiting for pong" (WARNING) both emit via
+    # sanic.websockets, not websockets.server. Raise it to ERROR so these
+    # routine disconnect messages are dropped while real errors still show.
+    # Patch the config defaults too, so the level survives Sanic's dictConfig.
+    LOGGING_CONFIG_DEFAULTS["loggers"]["sanic.websockets"]["level"] = "ERROR"
+    logging.getLogger("sanic.websockets").setLevel(logging.ERROR)
     # Also reformat any handlers already attached (covers the initial Sanic() call)
     for name in ("sanic.root", "sanic.error", "sanic.server", "sanic.websockets"):
         for handler in logging.getLogger(name).handlers: