diff --git a/ui/src/views/network/CreateIsolatedNetworkForm.vue b/ui/src/views/network/CreateIsolatedNetworkForm.vue
index e421ca6db66..9ebde9a36c3 100644
--- a/ui/src/views/network/CreateIsolatedNetworkForm.vue
+++ b/ui/src/views/network/CreateIsolatedNetworkForm.vue
@@ -270,7 +270,7 @@ export default {
       return array !== null && array !== undefined && Array.isArray(array) && array.length > 0
     },
     isValidTextValueForKey (obj, key) {
-      return key in obj && obj[key] != null && obj[key].length > 0
+      return key in obj && obj[key] != null && String(obj[key]).length > 0
     },
     fetchZoneData () {
       this.zones = []
diff --git a/ui/src/views/network/CreateL2NetworkForm.vue b/ui/src/views/network/CreateL2NetworkForm.vue
index 0b0ff04dcf8..7109c2664c5 100644
--- a/ui/src/views/network/CreateL2NetworkForm.vue
+++ b/ui/src/views/network/CreateL2NetworkForm.vue
@@ -258,7 +258,7 @@ export default {
       return key in obj && obj[key] != null
     },
     isValidTextValueForKey (obj, key) {
-      return this.isValidValueForKey(obj, key) && obj[key].length > 0
+      return this.isValidValueForKey(obj, key) && String(obj[key]).length > 0
     },
     fetchZoneData () {
       this.zones = []
diff --git a/ui/src/views/network/CreateSharedNetworkForm.vue b/ui/src/views/network/CreateSharedNetworkForm.vue
index c6f2b27d876..401acd1c3e9 100644
--- a/ui/src/views/network/CreateSharedNetworkForm.vue
+++ b/ui/src/views/network/CreateSharedNetworkForm.vue
@@ -442,7 +442,7 @@ export default {
       return this.isValidValueForKey(obj, key) && obj[key] === true
     },
     isValidTextValueForKey (obj, key) {
-      return this.isValidValueForKey(obj, key) && obj[key].length > 0
+      return this.isValidValueForKey(obj, key) && String(obj[key]).length > 0
     },
     fetchZoneData () {
       this.zones = []