diff --git a/config/config_netlify_preview.json b/config/config_netlify_preview.json
index 313f0d02..af339971 100644
--- a/config/config_netlify_preview.json
+++ b/config/config_netlify_preview.json
@@ -6,6 +6,7 @@
     }
   },
   "ssla": "https://static.element.io/legal/element-software-and-services-license-agreement-uk-1.pdf",
+  "sync_disconnect_grace_period_ms": 15000,
   "matrix_rtc_session": {
     "wait_for_key_rotation_ms": 3000,
     "membership_event_expiry_ms": 180000000,
diff --git a/src/state/CallViewModel/localMember/LocalMember.ts b/src/state/CallViewModel/localMember/LocalMember.ts
index 10a00767..95b699ab 100644
--- a/src/state/CallViewModel/localMember/LocalMember.ts
+++ b/src/state/CallViewModel/localMember/LocalMember.ts
@@ -803,6 +803,7 @@ export function enterRTCSession(
       membershipEventExpiryMs:
         matrixRtcSessionConfig?.membership_event_expiry_ms,
       unstableSendStickyEvents: matrixRTCMode === MatrixRTCMode.Matrix_2_0,
+      maximumNetworkErrorRetryCount: 60,
     },
   );
 }