diff --git a/src/change-defaultRoute.pl b/src/change-defaultRoute.pl
new file mode 100644
index 0000000..2781af9
--- /dev/null
+++ b/src/change-defaultRoute.pl
@@ -0,0 +1,49 @@
+# for this you 
+# this script depends on 5 routes
+# 1. with the comment "MAINGW" this will be always changed depends on if DSL is available  
+# 2. with comment "DSL" this is your route where normally all your traffic goes
+# 3. 1.1.1.1 over DSL fixed
+# 4. with comment "LTE" if ping to 1.1.1.1 fails 
+# 5. route to your uptime kuma,  
+#
+# uptime kuma is externally hosted and only available over a vpn 
+#
+
+
+
+:local LanInterface ether1
+
+:local PingTargetOne 1.1.1.1
+:local FailThreshholdOne 3
+
+:global PingFailCountOne
+
+:local maingw [/ip route get [find comment="MAINGW"] gateway ];
+:local dslgw [/ip route get [find comment="DSL"] gateway ];
+:local ltegw [/ip route get [find comment="LTE"] gateway ];
+
+:set $PingResult [ping 1.1.1.1 count=1]
+:put $PingResult
+
+:if ($PingResult = 0) do={
+    :if ($PingFailCountONE < ($FailTresholdOne+2)) do={
+        :set $PingFailCountOne ($PingFailCountOne + 1)
+        :log warning "Ping to $PingTargetONE failed."
+        
+        :if ( PingFailCountOne >= $FailTreshold) do={
+            :log warning "Change default route to LTE Backup!"
+            :log info "Change default route to LTE Backup!"
+
+            /ip route set [find comment="MAINGW"] gateway=$ltegw
+            /ip route set [find comment="UPTIME_KUMA"] type=blackhole
+        }
+    }
+}
+:if ($PingResult = 1) do={
+    :if ($PingFailCountOne > 0) do={
+        :set PingFailCountOne 0
+        :log info "Reset route to DSL"
+        /ip route set [find comment="MAINGW"] gateway=$dslgw
+        /ip route set [find comment="UPTIME_KUMA"] type=unicast
+    }
+}
\ No newline at end of file