diff --git a/systemd_units/RdkWanManager.service b/systemd_units/RdkWanManager.service
index 56494dd0..91ba491c 100644
--- a/systemd_units/RdkWanManager.service
+++ b/systemd_units/RdkWanManager.service
@@ -28,6 +28,7 @@ Environment="LOG4C_RCPATH=/etc"
 EnvironmentFile=/etc/device.properties
 WorkingDirectory=/usr/rdk/wanmanager
 ExecStartPre=/bin/touch /tmp/OS_WANMANAGER_ENABLED
+ExecStartPre=-/bin/sh -c '[ -x /usr/ccsp/dhcpmgr/DHCPMgrPSMValueCheck.sh ] && (/usr/ccsp/dhcpmgr/DHCPMgrPSMValueCheck.sh)'
 ExecStartPre=/bin/sh -c '(/usr/ccsp/utopiaInitCheck.sh)'
 ExecStart=/usr/rdk/wanmanager/wanmanager -subsys $Subsys
 ExecStop=/bin/sh -c 'echo "`date`: Stopping/Restarting RdkWanManager" >> ${PROCESS_RESTART_LOG}'