diff --git a/docs/changes/5.2.2.md b/docs/changes/5.2.2.md
index 836b8f62df..7acc46a895 100644
--- a/docs/changes/5.2.2.md
+++ b/docs/changes/5.2.2.md
@@ -24,6 +24,7 @@ Release date: `2021-0x-xx`
 - [NXDRIVE-2687](https://jira.nuxeo.com/browse/NXDRIVE-2687): Fix new errors found by codespell 2.1.0
 - [NXDRIVE-2698](https://jira.nuxeo.com/browse/NXDRIVE-2698): Specify the UFT-8 encoding when reading/writing text files
 - [NXDRIVE-2700](https://jira.nuxeo.com/browse/NXDRIVE-2700): Prevent `Comparison between bytes and string` warning
+- [NXDRIVE-2701](https://jira.nuxeo.com/browse/NXDRIVE-2701): Lower logging level of unknown connection error
 
 ### Direct Edit
 
diff --git a/nxdrive/gui/api.py b/nxdrive/gui/api.py
index 35a9dcdb0e..b28742f61c 100644
--- a/nxdrive/gui/api.py
+++ b/nxdrive/gui/api.py
@@ -825,8 +825,9 @@ def web_authentication(
             )
             self.openAuthenticationDialog.emit(auth.connect_url(), callback_params)
         except Exception:
-            log.exception(
-                "Unexpected error while trying to open web authentication window"
+            log.warning(
+                "Unexpected error while trying to open web authentication window",
+                exc_info=True,
             )
             self.setMessage.emit("CONNECTION_UNKNOWN", "error")