diff --git a/web/src/client/l10n.js b/web/src/client/l10n.js
index e6b61f4c39..140842ee94 100644
--- a/web/src/client/l10n.js
+++ b/web/src/client/l10n.js
@@ -62,7 +62,7 @@ class L10nClient {
   async getUILocale() {
     const response = await this.client.get("/l10n/config");
     if (!response.ok) {
-      console.log("Failed to get localizaation config: ", response);
+      console.error("Failed to get localization config: ", response);
       return "";
     }
     const config = await response.json();
@@ -89,7 +89,7 @@ class L10nClient {
   async getUIKeymap() {
     const response = await this.client.get("/l10n/config");
     if (!response.ok) {
-      console.log("Failed to get localizaation config: ", response);
+      console.error("Failed to get localizaation config: ", response);
       return "";
     }
     const config = await response.json();
@@ -116,7 +116,7 @@ class L10nClient {
   async timezones() {
     const response = await this.client.get("/l10n/timezones");
     if (!response.ok) {
-      console.log("Failed to get localizaation config: ", response);
+      console.error("Failed to get localizaation config: ", response);
       return [];
     }
     const timezones = await response.json();
@@ -153,7 +153,7 @@ class L10nClient {
   async locales() {
     const response = await this.client.get("/l10n/locales");
     if (!response.ok) {
-      console.log("Failed to get localizaation config: ", response);
+      console.error("Failed to get localizaation config: ", response);
       return [];
     }
     const locales = await response.json();
@@ -191,7 +191,7 @@ class L10nClient {
   async keymaps() {
     const response = await this.client.get("/l10n/keymaps");
     if (!response.ok) {
-      console.log("Failed to get localizaation config: ", response);
+      console.error("Failed to get localizaation config: ", response);
       return [];
     }
     const keymaps = await response.json();
@@ -269,7 +269,7 @@ class L10nClient {
   async getConfig() {
     const response = await this.client.get("/l10n/config");
     if (!response.ok) {
-      console.log("Failed to get localization config: ", response);
+      console.error("Failed to get localization config: ", response);
       return {};
     }
     return await response.json();
diff --git a/web/src/client/manager.js b/web/src/client/manager.js
index ffe8eb51be..03c691d6cb 100644
--- a/web/src/client/manager.js
+++ b/web/src/client/manager.js
@@ -72,7 +72,7 @@ class ManagerBaseClient {
   async canInstall() {
     const response = await this.client.get("/manager/installer");
     if (!response.ok) {
-      console.log("Failed to get installer config: ", response);
+      console.error("Failed to get installer config: ", response);
       return false;
     }
     const installer = await response.json();
@@ -97,7 +97,7 @@ class ManagerBaseClient {
   async getPhase() {
     const response = await this.client.get("/manager/installer");
     if (!response.ok) {
-      console.log("Failed to get installer config: ", response);
+      console.error("Failed to get installer config: ", response);
       return 0;
     }
     const installer = await response.json();
@@ -133,7 +133,7 @@ class ManagerBaseClient {
   async useIguana() {
     const response = await this.client.get("/manager/installer");
     if (!response.ok) {
-      console.log("Failed to get installer config: ", response);
+      console.error("Failed to get installer config: ", response);
       return false;
     }
     const installer = await response.json();
diff --git a/web/src/client/network.test.js b/web/src/client/network.test.js
index 5834e08dde..aadbbcb345 100644
--- a/web/src/client/network.test.js
+++ b/web/src/client/network.test.js
@@ -68,6 +68,15 @@ const mockSettings = {
   networking_enabled: true
 }
 
+const mockJsonFn = jest.fn();
+
+const mockGetFn = jest.fn().mockImplementation(() => {
+  return {
+    ok: true,
+    json: mockJsonFn,
+  };
+});
+
 jest.mock("./http", () => {
   return {
     HTTPClient: jest.fn().mockImplementation(() => {
@@ -78,14 +87,12 @@ jest.mock("./http", () => {
   };
 });
 
-const mockGetFn = jest.fn();
-
 describe("NetworkClient", () => {
   describe("#connections", () => {
     it("returns the list of active connections from the adapter", async () => {
       const http = new HTTPClient(new URL(ADDRESS));
       const client = new NetworkClient(http);
-      mockGetFn.mockResolvedValue([mockWiredConnection, mockWirelessConnection]);
+      mockJsonFn.mockResolvedValue([mockWiredConnection, mockWirelessConnection]);
       const connections = await client.connections();
       const eth0 = connections.find(c => c.id === "eth0");
       expect(eth0).toEqual(mockConnection);
@@ -96,7 +103,7 @@ describe("NetworkClient", () => {
     it("returns the list of addresses", async () => {
       const http = new HTTPClient(new URL(ADDRESS));
       const client = new NetworkClient(http);
-      mockGetFn.mockResolvedValue([mockWiredConnection, mockWirelessConnection]);
+      mockJsonFn.mockResolvedValue([mockWiredConnection, mockWirelessConnection]);
       const addresses = await client.addresses();
       expect(addresses).toEqual([{ address: "192.168.122.100", prefix: 24 }]);
     });
@@ -107,7 +114,7 @@ describe("NetworkClient", () => {
     it("returns network general settings", async () => {
       const http = new HTTPClient(new URL(ADDRESS));
       const client = new NetworkClient(http);
-      mockGetFn.mockResolvedValue(mockSettings);
+      mockJsonFn.mockResolvedValue(mockSettings);
       const settings = await client.settings();
       expect(settings.hostname).toEqual("localhost.localdomain");
     });
diff --git a/web/src/client/network/index.js b/web/src/client/network/index.js
index 7cdc257aeb..3eb5e52ffe 100644
--- a/web/src/client/network/index.js
+++ b/web/src/client/network/index.js
@@ -106,8 +106,13 @@ class NetworkClient {
    * @return {Promise<Connection[]>}
    */
   async connections() {
-    const connections = await this.client.get("/network/connections");
+    const response = await this.client.get("/network/connections");
+    if (!response.ok) {
+      console.error("Failed to get list of connections", response);
+      return [];
+    }
 
+    const connections = await response.json();
     return connections.map(this.fromApiConnection);
   }
 
@@ -141,9 +146,14 @@ class NetworkClient {
    * @return {Promise<AccessPoint[]>}
    */
   async accessPoints() {
-    const access_points = await this.client.get("/network/wifi");
-
-    return access_points.map(ap => {
+    const response = await this.client.get("/network/wifi");
+    if (!response.ok) {
+      console.error("Failed to get list of APs", response);
+      return [];
+    }
+    const access_points = await response.json();
+
+    return access_points.map((ap) => {
       return createAccessPoint({
         ssid: ap.ssid,
         hwAddress: ap.hw_address,
@@ -169,7 +179,7 @@ class NetworkClient {
    * Apply network changes
    */
   async apply() {
-    return this.client.put("/network/system/apply");
+    return this.client.put("/network/system/apply", {});
   }
 
   /**
@@ -205,7 +215,13 @@ class NetworkClient {
    * @return {Promise<Connection>} the added connection
    */
   async addConnection(connection) {
-    return this.client.post("/network/connections", this.toApiConnection(connection));
+    const response = await this.client.post("/network/connections", this.toApiConnection(connection));
+    if (!response.ok) {
+      console.error("Failed to post list of connections", response);
+      return null;
+    }
+
+    return response.json();
   }
 
   /**
@@ -232,7 +248,7 @@ class NetworkClient {
   async updateConnection(connection) {
     const conn = this.toApiConnection(connection);
     await this.client.put(`/network/connections/${conn.id}`, conn);
-    return this.apply();
+    return (await this.apply()).ok;
   }
 
   /**
@@ -246,7 +262,7 @@ class NetworkClient {
    */
   async deleteConnection(id) {
     await this.client.delete(`/network/connections/${id}`);
-    return this.apply();
+    return (await this.apply()).ok;
   }
 
   /*
@@ -266,8 +282,13 @@ class NetworkClient {
   *
    * @return {Promise<NetworkSettings>}
   */
-  settings() {
-    return this.client.get("/network/state");
+  async settings() {
+    const response = await this.client.get("/network/settings");
+    if (!response.ok) {
+      console.error("Failed to get settings", response);
+      return {};
+    }
+    return response.json();
   }
 }
 
diff --git a/web/src/client/software.test.js b/web/src/client/software.test.js
index 5aeeaf6339..c714ef4590 100644
--- a/web/src/client/software.test.js
+++ b/web/src/client/software.test.js
@@ -25,6 +25,15 @@ import DBusClient from "./dbus";
 import { HTTPClient } from "./http";
 import { ProductClient, SoftwareClient } from "./software";
 
+const mockJsonFn = jest.fn();
+
+const mockGetFn = jest.fn().mockImplementation(() => {
+  return {
+    ok: true,
+    json: mockJsonFn,
+  };
+});
+
 jest.mock("./http", () => {
   return {
     HTTPClient: jest.fn().mockImplementation(() => {
@@ -35,8 +44,6 @@ jest.mock("./http", () => {
   };
 });
 
-const mockGetFn = jest.fn();
-
 jest.mock("./dbus");
 
 const PRODUCT_IFACE = "org.opensuse.Agama.Software1.Product";
@@ -82,7 +89,7 @@ describe("ProductClient", () => {
     it.only("returns the list of available products", async () => {
       const http = new HTTPClient(new URL("http://localhost"));
       const client = new ProductClient(http);
-      mockGetFn.mockResolvedValue([tumbleweed, microos]);
+      mockJsonFn.mockResolvedValue([tumbleweed, microos]);
       const products = await client.getAll();
       expect(products).toEqual([
         { id: "Tumbleweed", name: "openSUSE Tumbleweed", description: "Tumbleweed is..." },
@@ -95,7 +102,7 @@ describe("ProductClient", () => {
     it.only("returns the selected product", async () => {
       const http = new HTTPClient(new URL("http://localhost"));
       const client = new ProductClient(http);
-      mockGetFn.mockResolvedValue({ product: "microos" });
+      mockJsonFn.mockResolvedValue({ product: "microos" });
       const selected = await client.getSelected();
       expect(selected).toEqual("microos");
     });