diff --git a/Guests/RTR-01.ps1 b/Guests/RTR-01.ps1
index b402e99..0706fbd 100644
--- a/Guests/RTR-01.ps1
+++ b/Guests/RTR-01.ps1
@@ -100,19 +100,13 @@ Start-Service RemoteAccess
 
 ### Set connection as private ###
 echo "Set connection as private"
-Set-NetConnectionProfile -networkcategory private
+Get-NetAdapter | Set-NetConnectionProfile -NetworkCategory Private
 
 ### Change ZoneAlarm rule to accept incoming ICMP ipv4 probes ###
 
-echo "Allowing ICMPv4 probes"
-$Params = @{
-	"Name"   = 'vm-monitoring-icmpv4'
-	"Action"        = 'Allow'
-}
+Get-NetFirewallRule -name "*ICMP4-ERQ-In*" | Enable-NetFirewallRule
 
-Set-NetFirewallRule @Params
-
-# End of scritlet
+#END
 
 ### Add routes
 
@@ -120,7 +114,7 @@ echo "Adding route"
 route add -p 192.168.128.8/24 192.168.255.128
 route add -p 0.0.0.0/0 192.168.255.254
 
-# End of scritlet
+# End of scriptlet
 
 
 Read-Host "Finished???"
diff --git a/Guests/RTR-02.ps1 b/Guests/RTR-02.ps1
index cfe7e5a..9b6c3fd 100644
--- a/Guests/RTR-02.ps1
+++ b/Guests/RTR-02.ps1
@@ -61,20 +61,16 @@ Start-Service RemoteAccess
 ### Set connection as Private
 
 echo "Set connection as private"
-Set-NetConnectionProfile -NetworkCategory Private
+Get-NetAdapter | Set-NetConnectionProfile -NetworkCategory Private
 #END
 
-### Activing ICMPv4 probes
+### Change ZoneAlarm rule to accept incoming ICMP ipv4 probes ###
 
-echo "Activating ICMPv4 probes"
-$Params = @{
-	"Name"   = 'vm-monitoring-icmpv4'
-	"Action"        = 'Allow'
-}
+Get-NetFirewallRule -name "*ICMP4-ERQ-In*" |Enable-NetFirewallRule
 
-Set-NetFirewallRule @Params
 #END
 
+
 ### Activate NAT and DHCP Relay
 
 echo "Activate NAT and DHCP Relay"
diff --git a/Guests/RTR-03.ps1 b/Guests/RTR-03.ps1
index 15580ac..66871a2 100644
--- a/Guests/RTR-03.ps1
+++ b/Guests/RTR-03.ps1
@@ -57,12 +57,8 @@ Start-Service RemoteAccess
 
 ### Change ZoneAlarm rule to accept incoming ICMP ipv4 probes ###
 
-echo "Allowing ICMPv4 probes"
-$Params = @{
-	"Name"   = 'vm-monitoring-icmpv4'
-	"Action"        = 'Allow'
-}
-Set-NetFirewallRule @Params
+Get-NetFirewallRule -name "*ICMP4-ERQ-In*" |Enable-NetFirewallRule
+
 #END
 
 
@@ -80,7 +76,7 @@ Start-Service RemoteAccess
 ### Set connection as Private
 
 echo "Setting connection as private"
-Set-NetConnectionProfile -networkcategory private
+Get-NetAdapter | Set-NetConnectionProfile -NetworkCategory Private
 #End
 
 # Add routes