diff --git a/monitoring/edge-monitoring-server/templates/prometheusrule.yaml b/monitoring/edge-monitoring-server/templates/prometheusrule.yaml
index fc29f2a..ecc6acf 100644
--- a/monitoring/edge-monitoring-server/templates/prometheusrule.yaml
+++ b/monitoring/edge-monitoring-server/templates/prometheusrule.yaml
@@ -47,7 +47,7 @@
         annotations:
           message: |
             {{`{{ $value | humanizePercentage }}`}} of the clusters are reporting UE connect failures.
-        expr: avg(aetheredge_connect_test_ok{endpoint="metrics80"}) < 0.5
+        expr: avg(clamp_max(aetheredge_connect_test_ok{endpoint="metrics80"} + aetheredge_in_maintenance_window{endpoint="metrics80"}, 1)) < 0.5
         for: 10m
         labels:
           severity: critical