diff --git a/src/components/Dashboard/context/AuthContext.jsx b/src/components/Dashboard/context/AuthContext.jsx
index c9e88dc4..639c9059 100644
--- a/src/components/Dashboard/context/AuthContext.jsx
+++ b/src/components/Dashboard/context/AuthContext.jsx
@@ -43,6 +43,13 @@ const AuthContext = createContext()
 
 const { Text } = Typography
 
+const pendingLoginTokenRequests = new Map()
+
+const getSlicerAppKey = (location) => {
+  if (location?.pathname !== '/slicer') return null
+  return new URLSearchParams(location.search).get('authCode') || null
+}
+
 const extractUserFromAuthData = (authData) => {
   if (!authData || typeof authData !== 'object') return null
   if (authData.user && typeof authData.user === 'object') return authData.user
@@ -113,6 +120,10 @@ const AuthProvider = ({ children }) => {
   } = useContext(ElectronContext)
   const location = useLocation()
   const navigate = useNavigate()
+  const slicerAuthPendingRef = useRef(Boolean(getSlicerAppKey(location)))
+  const [slicerAuthPending, setSlicerAuthPending] = useState(
+    slicerAuthPendingRef.current
+  )
   const locationRef = useRef(location)
   locationRef.current = location
   const sessionRef = useRef({
@@ -123,6 +134,9 @@ const AuthProvider = ({ children }) => {
   })
   sessionRef.current = { token, expiresAt, userProfile, authenticated }
   const isDesktopHelperRoute = location.pathname.startsWith('/desktop')
+  const slicerAppKey = getSlicerAppKey(location)
+  const suppressUnauthorizedModal =
+    isDesktopHelperRoute || Boolean(slicerAppKey) || slicerAuthPending
 
   var redirectType = 'web'
 
@@ -458,10 +472,17 @@ const AuthProvider = ({ children }) => {
       setShowUnauthorizedModal(false)
       setShowSessionExpiredModal(false)
       setAuthError(null)
-      try {
-        const response = await axios.get(
+
+      let request = pendingLoginTokenRequests.get(code)
+      if (!request) {
+        request = axios.get(
           `${config.backendUrl}/auth/${redirectType}/token?code=${code}`
         )
+        pendingLoginTokenRequests.set(code, request)
+      }
+
+      try {
+        const response = await request
 
         if (response.status === 200 && response.data) {
           logger.debug('Got auth token!')
@@ -513,6 +534,8 @@ const AuthProvider = ({ children }) => {
         }
         setAuthenticated(false)
       } finally {
+        slicerAuthPendingRef.current = false
+        setSlicerAuthPending(false)
         setLoading(false)
         setRetreivedTokenFromCookies(true)
       }
@@ -582,7 +605,11 @@ const AuthProvider = ({ children }) => {
     if (hadSession) {
       clearPersistedSession()
     }
-    if (showSessionExpiredModal == false) {
+    if (
+      showSessionExpiredModal == false &&
+      !slicerAuthPendingRef.current &&
+      !getSlicerAppKey(locationRef.current)
+    ) {
       setShowUnauthorizedModal(true)
     }
   }, [clearPersistedSession, showSessionExpiredModal])
@@ -768,13 +795,25 @@ const AuthProvider = ({ children }) => {
     }
     const authCode =
       new URLSearchParams(location.search).get('authCode') || null
+    const slicerKey = getSlicerAppKey(location)
     if (
       authCode != null &&
       processedAuthCodeRef.current !== authCode
     ) {
       processedAuthCodeRef.current = authCode
+      if (slicerKey) {
+        slicerAuthPendingRef.current = true
+        setSlicerAuthPending(true)
+        setShowUnauthorizedModal(false)
+        setInitialized(true)
+      }
       getLoginToken(authCode)
-    } else if (
+      return
+    }
+    if (slicerAuthPendingRef.current || slicerKey) {
+      return
+    }
+    if (
       token == null &&
       retreivedTokenFromCookies == true &&
       initialized == false &&
@@ -786,10 +825,9 @@ const AuthProvider = ({ children }) => {
     }
   }, [
     checkAuthStatus,
-    location.search,
+    location,
     getLoginToken,
     initialized,
-    location.pathname,
     navigate,
     token,
     retreivedTokenFromCookies
@@ -870,7 +908,7 @@ const AuthProvider = ({ children }) => {
         }
         open={
           showUnauthorizedModal &&
-          !isDesktopHelperRoute &&
+          !suppressUnauthorizedModal &&
           !authenticated &&
           !loading &&
           !showAuthErrorModal