diff --git a/HQ%2FNetzwerk%2FPPPoE_failover.mw b/HQ%2FNetzwerk%2FPPPoE_failover.mw
index 64346ec1..8b9cc898 100644
--- a/HQ%2FNetzwerk%2FPPPoE_failover.mw
+++ b/HQ%2FNetzwerk%2FPPPoE_failover.mw
@@ -311,10 +311,20 @@ vi /root/ucarp_up.sh
 #// Load variables from rc.conf
 . /etc/rc.subr
 load_rc_config ucarp
+#// check weird behavior
+ping -S .92 -c 4 -q .91 > /dev/null
+if [ $? -eq 0 ]
+then
+   /usr/bin/logger "[WARNING] PPPoE Failover false/positive!"
+   exit 1
+else
+   : # dummy
+fi
+#// starting CARP failover
 /sbin/ifconfig $ucarp_if alias $ucarp_addr/24
 /sbin/ifconfig $ucarp_if inet6 2001:BLA:BLA:BLA::5 prefixlen 64 alias
 #// force arp refresh for the shared ip
-ping -S 172.22.99.4 -c 2 -q 172.22.99.7 > /dev/null
+ping -S .4 -c 2 -q .7 > /dev/null
 #// delete default gateway
 route -n delete default >/dev/null 2>&1
 #// clean ppp log