diff --git a/luci-app-openmptcprouter/luasrc/controller/openmptcprouter.lua b/luci-app-openmptcprouter/luasrc/controller/openmptcprouter.lua
index 690045e88..77d324ce7 100644
--- a/luci-app-openmptcprouter/luasrc/controller/openmptcprouter.lua
+++ b/luci-app-openmptcprouter/luasrc/controller/openmptcprouter.lua
@@ -272,6 +272,9 @@ function wizard_add()
 		elseif typeintf == "" and device ~= "" and proto == "modemmanager" then
 			ucic:set("network",intf,"device",device_manager)
 		end
+		if proto == "pppoe" then
+			ucic:set("network",intf,"pppd_options","persist maxfail 0")
+		end
 		if proto ~= "other" then
 			ucic:set("network",intf,"proto",proto)
 		end
diff --git a/luci-mod-network/htdocs/luci-static/resources/view/network/interfaces.js b/luci-mod-network/htdocs/luci-static/resources/view/network/interfaces.js
index 9d7a219ca..c76e02dec 100644
--- a/luci-mod-network/htdocs/luci-static/resources/view/network/interfaces.js
+++ b/luci-mod-network/htdocs/luci-static/resources/view/network/interfaces.js
@@ -511,8 +511,8 @@ return view.extend({
 
 					var new_ifnames = L.toArray(value);
 
-					if (!value)
-						new_ifnames.length = Math.max(new_ifnames.length, 1);
+					if (value == undefined)
+						return;
 
 					old_ifnames.sort();
 					new_ifnames.sort();