1 files changed, 5 insertions, 0 deletions
diff --git a/synapse/storage/databases/main/client_ips.py b/synapse/storage/databases/main/client_ips.py
index 1f6558c3df..e97b844dfa 100644
--- a/synapse/storage/databases/main/client_ips.py
+++ b/synapse/storage/databases/main/client_ips.py
@@ -579,6 +579,11 @@ class ClientIpWorkerStore(ClientIpBackgroundUpdateStore, MonthlyActiveUsersWorke
         device_id: Optional[str],
         now: Optional[int] = None,
     ) -> None:
+        # The sync proxy continuously triggers /sync even if the user is not
+        # present so should be excluded from user_ips entries.
+        if user_agent == "sync-v3-proxy-":
+            return
+
         if not now:
             now = int(self._clock.time_msec())
         key = (user_id, access_token, ip)