diff --git a/src/renderer/App.tsx b/src/renderer/App.tsx
index 5f52ace..934d635 100644
--- a/src/renderer/App.tsx
+++ b/src/renderer/App.tsx
@@ -2861,7 +2861,7 @@ export function App(): ReactElement {
 
   const persistAccountToggle = async (
     nextDraft: RendererSettingsDraft,
-    refreshBeforePersist?: () => Promise<void>
+    refreshBeforePersist?: () => ReturnType<typeof window.rd.checkAccountCredentials>
   ): Promise<RendererSettings> => {
     const previousDraft = settingsDraft;
     const previousDirty = settingsDirtyRef.current;
@@ -2905,7 +2905,7 @@ export function App(): ReactElement {
       };
       await persistAccountToggle(
         nextDraft,
-        enabled ? async () => { await window.rd.checkAccountCredentials({ kind: "debridlink-api", accountId: key.id }); } : undefined
+        enabled ? () => window.rd.checkAccountCredentials({ kind: "debridlink-api", accountId: key.id }) : undefined
       );
       showToast(
         enabled
@@ -2953,7 +2953,7 @@ export function App(): ReactElement {
         megaDebridApiDisabledAccountIds: apiDisabledIds,
         megaDebridWebDisabledAccountIds: webDisabledIds
       }, enabled
-        ? async () => { await window.rd.checkAccountCredentials({ kind, accountId }); }
+        ? () => window.rd.checkAccountCredentials({ kind, accountId })
         : undefined
       );
       showToast(enabled ? "Account aktiviert" : "Account deaktiviert", 2000);
@@ -3010,7 +3010,7 @@ export function App(): ReactElement {
         disabledProviders: nextState.disabledProviders,
         realDebridDisabledAccountIds: nextState.disabledAccountIds
       }, enabled
-        ? async () => { await window.rd.checkAccountCredentials({ kind, accountId }); }
+        ? () => window.rd.checkAccountCredentials({ kind, accountId })
         : undefined
       );
       showToast(enabled ? "Account aktiviert" : "Account deaktiviert", 2000);
diff --git a/src/renderer/account-ui.ts b/src/renderer/account-ui.ts
index 47045bd..ea9fdf2 100644
--- a/src/renderer/account-ui.ts
+++ b/src/renderer/account-ui.ts
@@ -146,11 +146,14 @@ export async function runOptimisticAccountUpdate<T>(
 }
 
 export async function runAccountEnableRefresh<T>(
-  refresh: (() => Promise<void>) | undefined,
+  refresh: (() => Promise<{ valid: boolean; message?: string }>) | undefined,
   persist: () => Promise<T>
 ): Promise<T> {
   if (refresh) {
-    await refresh();
+    const status = await refresh();
+    if (!status.valid) {
+      throw new Error(status.message || "Accountprüfung fehlgeschlagen");
+    }
   }
   return persist();
 }
diff --git a/tests/account-ui.test.ts b/tests/account-ui.test.ts
index b84bb3f..383c057 100644
--- a/tests/account-ui.test.ts
+++ b/tests/account-ui.test.ts
@@ -141,7 +141,7 @@ describe("account activation refresh", () => {
     const events: string[] = [];
 
     await runAccountEnableRefresh(
-      async () => { events.push("check"); },
+      async () => { events.push("check"); return { valid: true, message: "Premium aktiv" }; },
       async () => { events.push("persist"); }
     );
 
@@ -158,4 +158,15 @@ describe("account activation refresh", () => {
 
     expect(events).toEqual(["persist"]);
   });
+
+  it("does not enable an account whose silent refresh is invalid", async () => {
+    const events: string[] = [];
+
+    await expect(runAccountEnableRefresh(
+      async () => { events.push("check"); return { valid: false, message: "Sitzung abgelaufen" }; },
+      async () => { events.push("persist"); }
+    )).rejects.toThrow("Sitzung abgelaufen");
+
+    expect(events).toEqual(["check"]);
+  });
 });