diff --git a/parts/linux/cloud-init/artifacts/aks-localdns-hosts-setup.timer b/parts/linux/cloud-init/artifacts/aks-localdns-hosts-setup.timer
index d8c8458fbb3..34c1edc75d4 100644
--- a/parts/linux/cloud-init/artifacts/aks-localdns-hosts-setup.timer
+++ b/parts/linux/cloud-init/artifacts/aks-localdns-hosts-setup.timer
@@ -4,13 +4,15 @@ Description=Run AKS LocalDNS hosts setup periodically
 [Timer]
 # Run immediately on boot
 OnBootSec=0
-# Refresh every 15 minutes. AKS critical FQDN IPs can change due to load balancer
-# rotation, Traffic Manager failover, or regional DNS updates. 15 minutes balances
-# freshness against unnecessary DNS traffic — stale IPs would cause the hosts plugin
-# to serve unreachable addresses until the next refresh.
-OnUnitActiveSec=15min
+# Refresh 10 seconds after each run completes. AKS critical FQDN IPs can change
+# due to load balancer rotation, Traffic Manager failover, or regional DNS updates.
+# Frequent refreshes keep stale IPs from causing the hosts plugin to serve
+# unreachable addresses for long.
+OnUnitInactiveSec=10s
+# De-synchronize nodes so refreshes do not all hit DNS at the same time.
+RandomizedDelaySec=5s
 # Timer accuracy (how much systemd can delay)
-AccuracySec=1min
+AccuracySec=1s
 
 [Install]
 WantedBy=timers.target