diff --git a/README.md b/README.md
index 5f002c1..b8bd758 100644
--- a/README.md
+++ b/README.md
@@ -140,7 +140,7 @@ export PASS="1"
 - Block DNS leaks on Windows 10
 - Randomised server certificate name
 - Choice to protect clients with a password (private key encryption)
-- Option to allow multiple devices to use the same client profile simultaneously
+- Option to allow multiple devices to use the same client profile simultaneously (disables persistent IP addresses)
 - Many other little things!
 
 ## Compatibility
diff --git a/openvpn-install.sh b/openvpn-install.sh
index 2ed9da2..1d86962 100755
--- a/openvpn-install.sh
+++ b/openvpn-install.sh
@@ -636,6 +636,7 @@ function installQuestions() {
 	done
 	log_menu ""
 	log_prompt "Do you want to allow a single .ovpn profile to be used on multiple devices simultaneously?"
+	log_prompt "Note: Enabling this disables persistent IP addresses for clients."
 	until [[ $MULTI_CLIENT =~ (y|n) ]]; do
 		read -rp "Allow multiple devices per client? [y/n]: " -e -i n MULTI_CLIENT
 	done
@@ -1124,8 +1125,12 @@ persist-key
 persist-tun
 keepalive 10 120
 topology subnet
-server 10.8.0.0 255.255.255.0
-ifconfig-pool-persist ipp.txt" >>/etc/openvpn/server.conf
+server 10.8.0.0 255.255.255.0" >>/etc/openvpn/server.conf
+
+	# ifconfig-pool-persist is incompatible with duplicate-cn
+	if [[ $MULTI_CLIENT != "y" ]]; then
+		echo "ifconfig-pool-persist ipp.txt" >>/etc/openvpn/server.conf
+	fi
 
 	# DNS resolvers
 	case $DNS in