diff --git a/src/server/GameServer.ts b/src/server/GameServer.ts
index 9603a10b8..fa4ebfb6c 100644
--- a/src/server/GameServer.ts
+++ b/src/server/GameServer.ts
@@ -223,7 +223,7 @@ export class GameServer {
           c.clientID !== client.clientID,
       );
       if (conflicting !== undefined) {
-        this.log.error("client ids do not match", {
+        this.log.warn("client ids do not match", {
           clientID: client.clientID,
           clientIP: ipAnonymize(client.ip),
           clientPersistentID: client.persistentID,
diff --git a/src/server/Worker.ts b/src/server/Worker.ts
index 47a55e559..1a9b6e9fe 100644
--- a/src/server/Worker.ts
+++ b/src/server/Worker.ts
@@ -574,6 +574,10 @@ async function startMatchmakingPolling(gm: GameManager) {
           }, 7000);
         }
       } catch (error) {
+        if (error instanceof Error && error.name === "AbortError") {
+          // Abort is expected if no game is scheduled on this worker.
+          return;
+        }
         log.error(`Error polling lobby:`, error);
       }
     },