diff --git a/src/common/WiFiSettings/WiFiSettings.js b/src/common/WiFiSettings/WiFiSettings.js
index ded5214..9f7fa15 100644
--- a/src/common/WiFiSettings/WiFiSettings.js
+++ b/src/common/WiFiSettings/WiFiSettings.js
@@ -64,7 +64,7 @@ function prepDataToSubmit(formData) {
     return formData;
 }
 
-function validator(formData) {
+export function validator(formData) {
     const formErrors = formData.devices.map(
         (device) => {
             if (!device.enabled) return {};
@@ -89,5 +89,5 @@ function validator(formData) {
             return errors;
         },
     );
-    return JSON.stringify(formErrors) === "[{},{}]" ? null : formErrors;
+    return JSON.stringify(formErrors).match(/\[[{},?]+\]/) ? null : formErrors;
 }
diff --git a/src/common/WiFiSettings/__tests__/WiFiSettings.test.js b/src/common/WiFiSettings/__tests__/WiFiSettings.test.js
index 1622fba..2f4d0eb 100644
--- a/src/common/WiFiSettings/__tests__/WiFiSettings.test.js
+++ b/src/common/WiFiSettings/__tests__/WiFiSettings.test.js
@@ -13,8 +13,8 @@ import { fireEvent, render, wait } from "customTestRender";
 import { WebSockets } from "webSockets/WebSockets";
 import { mockJSONError } from "testUtils/network";
 
-import { wifiSettingsFixture } from "./__fixtures__/wifiSettings";
-import { WiFiSettings } from "../WiFiSettings";
+import { wifiSettingsFixture, oneDevice, twoDevices, threeDevices } from "./__fixtures__/wifiSettings";
+import { WiFiSettings, validator } from "../WiFiSettings";
 
 describe("<WiFiSettings/>", () => {
     let firstRender;
@@ -159,4 +159,18 @@ describe("<WiFiSettings/>", () => {
         };
         expect(mockAxios.post).toHaveBeenCalledWith(endpoint, data, expect.anything());
     });
+
+    it("Validator function using regex for one device", () => {    
+        expect(validator(oneDevice)).toEqual(null);      
+    });
+
+    it("Validator function using regex for two devices", () => {
+        const twoDevicesFormErrors = [{SSID: "SSID can't be empty"}, {}];    
+        expect(validator(twoDevices)).toEqual(twoDevicesFormErrors);
+    });
+
+    it("Validator function using regex for three devices", () => {
+        const threeDevicesFormErrors = [{}, {}, {password: "Password must contain at least 8 symbols"}];    
+        expect(validator(threeDevices)).toEqual(threeDevicesFormErrors);
+    });
 });
diff --git a/src/common/WiFiSettings/__tests__/__fixtures__/wifiSettings.js b/src/common/WiFiSettings/__tests__/__fixtures__/wifiSettings.js
index 71c8eb2..4ee0091 100644
--- a/src/common/WiFiSettings/__tests__/__fixtures__/wifiSettings.js
+++ b/src/common/WiFiSettings/__tests__/__fixtures__/wifiSettings.js
@@ -316,3 +316,85 @@ export function wifiSettingsFixture() {
         ],
     };
 }
+const oneDevice = {
+    devices: [
+        {
+            SSID: "Turris1",
+            channel: 60,
+            enabled: true,
+            guest_wifi: { enabled: false },
+            hidden: false,
+            htmode: "HT40",
+            hwmode: "11a",
+            id: 0,
+            password: "TestPass"
+        }
+    ]
+};
+
+const twoDevices = {
+    devices: [
+        {
+            SSID: "",
+            channel: 60,
+            enabled: true,
+            guest_wifi: { enabled: false },
+            hidden: false,
+            htmode: "HT40",
+            hwmode: "11a",
+            id: 0,
+            password: "TestPass"
+        },
+        {
+            SSID: "Turris2",
+            channel: 60,
+            enabled: true,
+            guest_wifi: { enabled: false },
+            hidden: false,
+            htmode: "HT40",
+            hwmode: "11a",
+            id: 0,
+            password: "TestPass"
+        }
+    ]
+};
+
+const threeDevices = {
+    devices: [
+        {
+            SSID: "Turris1",
+            channel: 60,
+            enabled: true,
+            guest_wifi: { enabled: false },
+            hidden: false,
+            htmode: "HT40",
+            hwmode: "11a",
+            id: 0,
+            password: "TestPass"
+        },
+        {
+            SSID: "Turris2",
+            channel: 60,
+            enabled: false,
+            guest_wifi: { enabled: false },
+            hidden: false,
+            htmode: "HT40",
+            hwmode: "11a",
+            id: 0,
+            password: "TestPass"
+        },
+        {
+            SSID: "Turris3",
+            channel: 60,
+            enabled: true,
+            guest_wifi: { enabled: false },
+            hidden: false,
+            htmode: "HT40",
+            hwmode: "11a",
+            id: 0,
+            password: ""
+        }
+    ]
+};
+
+export {oneDevice, twoDevices, threeDevices};
\ No newline at end of file