diff --git a/i18n/de.json b/i18n/de.json
index e88b79367..49ce71366 100644
--- a/i18n/de.json
+++ b/i18n/de.json
@@ -395,9 +395,9 @@
       "baudrate": "Baudrate",
       "comset": "ComSet",
       "connection": "Modbus Verbindung",
-      "connectionHintSerial": "Das Gerät ist direkt an evcc über eine RS485 Schnittstelle angeschlossen.",
-      "connectionHintTcpip": "Das Gerät ist von evcc aus über LAN/Wifi erreichbar.",
-      "connectionValueSerial": "Seriell / USB",
+      "connectionHintSerial": "Das Gerät ist direkt über RS485 (oder USB-zu-RS485 Adapter) angeschlossen.",
+      "connectionHintTcpip": "Das Gerät ist über Netzwerk (LAN/WiFi) erreichbar.",
+      "connectionValueSerial": "RS485",
       "connectionValueTcpip": "Netzwerk",
       "device": "Gerätename",
       "deviceHint": "Beispiel: /dev/ttyUSB0",
diff --git a/i18n/en.json b/i18n/en.json
index e2721878f..4d8c2acab 100644
--- a/i18n/en.json
+++ b/i18n/en.json
@@ -395,9 +395,9 @@
       "baudrate": "Baud rate",
       "comset": "ComSet",
       "connection": "Modbus connection",
-      "connectionHintSerial": "The device is directly connected to evcc via a RS485 interface.",
-      "connectionHintTcpip": "The device is addressable from evcc via LAN/Wifi.",
-      "connectionValueSerial": "Serial / USB",
+      "connectionHintSerial": "The device is directly connected via RS485 (or USB-to-RS485 adapter).",
+      "connectionHintTcpip": "The device is reachable via network (LAN/WiFi).",
+      "connectionValueSerial": "RS485",
       "connectionValueTcpip": "Network",
       "device": "Device name",
       "deviceHint": "Example: /dev/ttyUSB0",
diff --git a/tests/config-modbus-fields.spec.ts b/tests/config-modbus-fields.spec.ts
index 388da1af2..f8791cf32 100644
--- a/tests/config-modbus-fields.spec.ts
+++ b/tests/config-modbus-fields.spec.ts
@@ -48,7 +48,7 @@ test.describe("modbus fields", async () => {
 
   test("rs485serial", async ({ page }) => {
     const modal = await openMeterModal(page, "Serial Test");
-    await expect(page.getByLabel("Serial / USB")).toBeChecked();
+    await expect(page.getByLabel("RS485")).toBeChecked();
     await expect(modal.getByLabel("Device name")).toHaveValue("/dev/ttyUSB5");
     await expect(modal.getByLabel("Baud rate")).toHaveValue("19200");
     await expect(modal.getByLabel("ComSet")).toHaveValue("8E1");
diff --git a/tests/config-modbusproxy.spec.ts b/tests/config-modbusproxy.spec.ts
index 63b27c0aa..18bdd4608 100644
--- a/tests/config-modbusproxy.spec.ts
+++ b/tests/config-modbusproxy.spec.ts
@@ -50,7 +50,7 @@ test.describe("modbusproxy", async () => {
     await expect(evccBox.getByLabel("no")).toBeChecked();
     await evccBox.getByLabel("error").click();
 
-    await expect(deviceBox.getByText("Network")).toBeChecked();
+    await expect(deviceBox.getByLabel("Network")).toBeChecked();
     await deviceBox.getByLabel("IP address or hostname").fill("127.0.0.1");
 
     const devicePort = deviceBox.getByLabel("Port");
@@ -79,7 +79,7 @@ test.describe("modbusproxy", async () => {
 
     await expect(evccBox.getByLabel("Port")).toHaveValue("501");
     await expect(evccBox.getByLabel("error")).toBeChecked();
-    await expect(deviceBox.getByText("Network")).toBeChecked();
+    await expect(deviceBox.getByLabel("Network")).toBeChecked();
     await deviceBox.getByLabel("IP address or hostname").fill("127.0.0.1");
     await expect(deviceBox.getByLabel("Port")).toHaveValue("602");
     await expect(deviceBox.getByText("RTU")).toBeChecked();
@@ -109,7 +109,7 @@ test.describe("modbusproxy", async () => {
     await expect(connection1).toContainText("Connection #1");
     await expect(connection1.getByTestId("evcc-box").getByLabel("Port")).toHaveValue("5021");
     const device1 = connection1.getByTestId("device-box");
-    await expect(device1.getByText("Network")).toBeChecked();
+    await expect(device1.getByLabel("Network")).toBeChecked();
     await expect(device1.getByLabel("IP address or hostname")).toHaveValue("192.0.2.2");
     await expect(device1.getByLabel("Port")).toHaveValue("502");
     await expect(device1.getByText("TCP")).toBeChecked();
@@ -121,7 +121,7 @@ test.describe("modbusproxy", async () => {
     await expect(connection2.getByTestId("evcc-box").getByLabel("Port")).toBeVisible();
     await expect(connection2.getByTestId("evcc-box").getByLabel("Port")).toHaveValue("5022");
     const device2 = connection2.getByTestId("device-box");
-    await expect(device2.getByText("Serial")).toBeChecked();
+    await expect(device2.getByLabel("RS485")).toBeChecked();
     await expect(device2.getByLabel("Device")).toHaveValue("/dev/ttyUSB0");
     await expect(device2.getByLabel("Baud rate")).toHaveValue("9600");
     await expect(device2.getByLabel("ComSet")).toHaveValue("8N1");
@@ -131,7 +131,7 @@ test.describe("modbusproxy", async () => {
     await expect(connection3).toContainText("Connection #3");
     await expect(connection3.getByTestId("evcc-box").getByLabel("Port")).toHaveValue("5023");
     const device3 = connection3.getByTestId("device-box");
-    await expect(device3.getByText("Network")).toBeChecked();
+    await expect(device3.getByLabel("Network")).toBeChecked();
     await expect(device3.getByLabel("IP address or hostname")).toHaveValue("192.0.2.3");
     await expect(device3.getByLabel("Port")).toHaveValue("502");
     await expect(device3.getByText("RTU")).toBeChecked();