diff --git a/client/src/composables/engine/fetchUpdate.ts b/client/src/composables/engine/fetchUpdate.ts
index 9cd926b..d69a759 100644
--- a/client/src/composables/engine/fetchUpdate.ts
+++ b/client/src/composables/engine/fetchUpdate.ts
@@ -81,17 +81,31 @@ export async function fetchUpdate(this: EngineContext) {
             const { status, statusText } = e.response
             if (status == 200) {
                 delay = 1000
-            } else {
+            } else if (status == 403) {
+                // credentials not valid any more
+                this.retry.value = -1
+                this.isActive = false
+                this.shouldStop = false
+                document.location.pathname = '/'
+                return
+        } else {
                 console.warn(`HTTP ${status} ${statusText}`)
-                if (this.retry.value <= 15) {
-                    delay = 1000
-                } else {
+                if (this.retry.value > 30) {
+                    // after 90s give up
+                    this.retry.value = -1
+                    this.isActive = false
+                    this.shouldStop = false
+                    document.location.pathname = '/'
+                    return
+                } else if (this.retry.value > 15) {
                     delay = 5000
+                } else {
+                    delay = 1000
                 }
                 this.version = -1
             }
         } else {
-            // request aborted or other causes
+            // request aborted or other causes, stop fetching
             console.warn(e.message)
 
             this.retry.value = -1