diff --git a/src/slic3r/GUI/GUI_App.cpp b/src/slic3r/GUI/GUI_App.cpp
index 407749ef83..761b016d2f 100644
--- a/src/slic3r/GUI/GUI_App.cpp
+++ b/src/slic3r/GUI/GUI_App.cpp
@@ -1538,6 +1538,15 @@ bool GUI_App::on_init_inner()
             this->check_updates(false);
         });
 
+        Bind(EVT_CONFIG_UPDATER_FAILED_ARCHIVE, [this](const wxCommandEvent& evt) {
+            assert(!evt.GetString().empty());
+            // TRN Notification text, 1 is list of vendors.
+            std::string notification_text = format(_u8L("Update Check Failed for the Following Vendors:\n\n%1%\nThis may be due to an account logout or a lost connection. Please verify your account status and internet connection. Then select \"Check for Configuration Updates\" to repeat."), evt.GetString());
+            notification_manager()->push_notification(NotificationType::FailedSecretVendorUpdateSync,
+                NotificationManager::NotificationLevel::WarningNotificationLevel,
+                notification_text);
+        });
+
         Bind(wxEVT_ACTIVATE_APP, [this](const wxActivateEvent &evt) {
             if (plater_) {
                 if (auto user_account = plater_->get_user_account())
diff --git a/src/slic3r/GUI/NotificationManager.hpp b/src/slic3r/GUI/NotificationManager.hpp
index 215aae7b5e..96e49f162b 100644
--- a/src/slic3r/GUI/NotificationManager.hpp
+++ b/src/slic3r/GUI/NotificationManager.hpp
@@ -146,6 +146,8 @@ enum class NotificationType
     SupportNozzleDiameterDiffer,
     // Transient error on Prusa Account communication - user is informed and has option to cancel (logout)
     AccountTransientRetry,
+    // Failed to download secret repo archive
+    FailedSecretVendorUpdateSync
 };
 
 class NotificationManager
diff --git a/src/slic3r/GUI/Plater.cpp b/src/slic3r/GUI/Plater.cpp
index 202c35989e..64a57a9323 100644
--- a/src/slic3r/GUI/Plater.cpp
+++ b/src/slic3r/GUI/Plater.cpp
@@ -971,6 +971,7 @@ void Plater::priv::init()
                     std::string text = format(_u8L("Logged to Prusa Account as %1%."), username);
                     // login notification
                     this->notification_manager->close_notification_of_type(NotificationType::UserAccountID);
+                    this->notification_manager->close_notification_of_type(NotificationType::FailedSecretVendorUpdateSync);
                     // show connect tab
                     this->notification_manager->push_notification(NotificationType::UserAccountID, NotificationManager::NotificationLevel::ImportantNotificationLevel, text);
 
diff --git a/src/slic3r/GUI/PresetArchiveDatabase.cpp b/src/slic3r/GUI/PresetArchiveDatabase.cpp
index 26cb49971e..a499a790c5 100644
--- a/src/slic3r/GUI/PresetArchiveDatabase.cpp
+++ b/src/slic3r/GUI/PresetArchiveDatabase.cpp
@@ -786,6 +786,7 @@ void PresetArchiveDatabase::read_server_manifest(const std::string& json_body)
             ) == m_archive_repositories.end())
 		{
             ArchiveRepository::RepositoryManifest manifest(repo_ptr->get_manifest());
+            manifest.not_in_manifest = true;
             m_archive_repositories.emplace_back(std::make_unique<OnlineArchiveRepository>(repo_ptr->get_uuid(), std::move(manifest)));
 	    }
 	}
@@ -809,8 +810,7 @@ SharedArchiveRepositoryVector PresetArchiveDatabase::get_selected_archive_reposi
 {
     SharedArchiveRepositoryVector result;
     result.reserve(m_archive_repositories.size());
-    for (const auto &repo_ptr : m_archive_repositories) 
-    {
+    for (const auto &repo_ptr : m_archive_repositories) {
         auto it = m_selected_repositories_uuid.find(repo_ptr->get_uuid());
         assert(it != m_selected_repositories_uuid.end());
         if (it->second) {
diff --git a/src/slic3r/GUI/PresetArchiveDatabase.hpp b/src/slic3r/GUI/PresetArchiveDatabase.hpp
index 359df8fbef..d3643b914a 100644
--- a/src/slic3r/GUI/PresetArchiveDatabase.hpp
+++ b/src/slic3r/GUI/PresetArchiveDatabase.hpp
@@ -37,6 +37,7 @@ public:
 		// not read from manifest json
 		boost::filesystem::path tmp_path; // Where archive is unzziped. Created each app run. 
 		boost::filesystem::path source_path; // Path given by user. Stored between app runs.
+        bool not_in_manifest {false};
 
         RepositoryManifest() = default;
         RepositoryManifest(
@@ -47,7 +48,8 @@ public:
             const std::string &description = "",
             const std::string &visibility = "",
             const boost::filesystem::path &tmp_path = "",
-            const boost::filesystem::path &source_path = ""
+            const boost::filesystem::path &source_path = "",
+            bool not_in_manifest = false
         )
             : id(id)
             , name(name)
@@ -57,6 +59,7 @@ public:
             , visibility(visibility)
             , tmp_path(tmp_path)
             , source_path(source_path) 
+            , not_in_manifest(not_in_manifest)
 		{}
         RepositoryManifest(const RepositoryManifest &other)
             : id(other.id)
@@ -66,7 +69,8 @@ public:
             , description(other.description)
             , visibility(other.visibility)
             , tmp_path(other.tmp_path)
-            , source_path(other.source_path) 
+            , source_path(other.source_path)
+            , not_in_manifest(other.not_in_manifest)
 		{}
 	};
 	// Use std::move when calling constructor.
diff --git a/src/slic3r/GUI/UpdatesUIManager.cpp b/src/slic3r/GUI/UpdatesUIManager.cpp
index 8878e92b06..3322e5d88e 100644
--- a/src/slic3r/GUI/UpdatesUIManager.cpp
+++ b/src/slic3r/GUI/UpdatesUIManager.cpp
@@ -115,7 +115,7 @@ void RepositoryUpdateUIManager::fill_entries(bool init_selection/* = false*/)
 
         if (data.source_path.empty()) {
             // online repo
-            m_online_entries.push_back({ is_selected, uuid, data.name, data.description, data.visibility });
+            m_online_entries.push_back({ is_selected, uuid, data.name, data.description, data.visibility, data.not_in_manifest });
         }
         else {
             // offline repo
@@ -161,12 +161,19 @@ void RepositoryUpdateUIManager::fill_grids()
                 });
             add(chb);
 
-            if (entry.visibility.empty())
-                add(new wxStaticText(m_parent, wxID_ANY, ""));
-            else {
+            if (entry.not_in_manifest) {
+                wxStaticBitmap* bmp = new wxStaticBitmap(m_parent, wxID_ANY, *get_bmp_bundle("notification_warning"));
+                // TRN tooltip in Configuration Wizard - Configuration Sources
+                bmp->SetToolTip(_L("This source has installed vendors, yet you do not have rights to receive updates of it.\n"
+                    "This may be because you are logged out. Log in to restore access to all your subscribed sources.\n"
+                    "If you are logged in, please concider unsubscribing this source."));
+                add(bmp);
+            } else if (!entry.visibility.empty()) {
                 wxStaticBitmap* bmp = new wxStaticBitmap(m_parent, wxID_ANY, *get_bmp_bundle("info"));
                 bmp->SetToolTip(from_u8(entry.visibility));
                 add(bmp);
+            } else {
+                add(new wxStaticText(m_parent, wxID_ANY, ""));
             }
 
             add(new wxStaticText(m_parent, wxID_ANY, from_u8(entry.name) + " "));
diff --git a/src/slic3r/GUI/UpdatesUIManager.hpp b/src/slic3r/GUI/UpdatesUIManager.hpp
index 38878bb494..2515e19c39 100644
--- a/src/slic3r/GUI/UpdatesUIManager.hpp
+++ b/src/slic3r/GUI/UpdatesUIManager.hpp
@@ -21,14 +21,15 @@ namespace GUI {
 class RepositoryUpdateUIManager
 {
     struct OnlineEntry {
-        OnlineEntry(bool use, const std::string &id, const std::string &name, const std::string &description, const std::string &visibility) :
-            use(use), id(id), name(name), description(description), visibility(visibility) {}
+        OnlineEntry(bool use, const std::string &id, const std::string &name, const std::string &description, const std::string &visibility, bool not_in_manifest) :
+            use(use), id(id), name(name), description(description), visibility(visibility) ,not_in_manifest(not_in_manifest) {}
 
         bool            use;
         std::string     id;
         std::string     name;
         std::string     description;
         std::string   	visibility;
+        bool            not_in_manifest;
     };
 
     struct OfflineEntry {
diff --git a/src/slic3r/Utils/PresetUpdater.cpp b/src/slic3r/Utils/PresetUpdater.cpp
index f23ac74b11..b8e9ad3c1f 100644
--- a/src/slic3r/Utils/PresetUpdater.cpp
+++ b/src/slic3r/Utils/PresetUpdater.cpp
@@ -311,7 +311,8 @@ void PresetUpdater::priv::sync_config(const VendorMap& vendors, const ArchiveRep
 	// Download profiles archive zip
 	fs::path archive_path(cache_path / "vendor_indices.zip");
 	if (!archive_repository->get_archive(archive_path, ui_status)) {
-		BOOST_LOG_TRIVIAL(error) << "Download of vedor profiles archive zip of " << archive_repository->get_manifest().id << " repository has failed.";
+		BOOST_LOG_TRIVIAL(error) << "Download of vendor profiles archive zip of " << archive_repository->get_manifest().id << " repository has failed.";
+        ui_status->add_failed_archive(archive_repository->get_manifest().id);
 		return;
 	}
 	if (ui_status->get_canceled()) { 
diff --git a/src/slic3r/Utils/PresetUpdaterWrapper.cpp b/src/slic3r/Utils/PresetUpdaterWrapper.cpp
index 645e2be1cf..3baac5887a 100644
--- a/src/slic3r/Utils/PresetUpdaterWrapper.cpp
+++ b/src/slic3r/Utils/PresetUpdaterWrapper.cpp
@@ -1,6 +1,7 @@
 #include "PresetUpdaterWrapper.hpp"
 
 #include "slic3r/GUI/GUI_App.hpp"
+#include "slic3r/GUI/GUI.hpp"
 #include "slic3r/GUI/I18N.hpp"
 #include "slic3r/GUI/MsgDialog.hpp"
 #include "slic3r/GUI/format.hpp"
@@ -15,6 +16,43 @@ namespace Slic3r {
 wxDEFINE_EVENT(EVT_PRESET_UPDATER_STATUS_END, PresetUpdaterStatusSimpleEvent);
 wxDEFINE_EVENT(EVT_PRESET_UPDATER_STATUS_PRINT, PresetUpdaterStatusMessageEvent);
 wxDEFINE_EVENT(EVT_CONFIG_UPDATER_SYNC_DONE, wxCommandEvent);
+wxDEFINE_EVENT(EVT_CONFIG_UPDATER_FAILED_ARCHIVE, wxCommandEvent);
+
+
+namespace {
+// Returns string of vendors that failed archive download. divided by new line
+std::string proccess_failed_archives(const std::vector<std::string>& failed_archives, const VendorMap& vendors, const SharedArchiveRepositoryVector &repos)
+{
+    std::string failed_vendors;
+    for (const std::string& failed_archive : failed_archives) {
+        // find if failed_archive is secret
+        if (const auto it = 
+            std::find_if(repos.begin(), repos.end(), 
+                [failed_archive](const auto* rep){ 
+                    return rep->get_manifest().id == failed_archive; 
+                })
+            ; it != repos.end())
+        {
+            // add all installed vendors of failed_archive
+            for (const auto& pair :vendors) {
+                if (pair.second.repo_id == failed_archive) {
+                    failed_vendors += pair.second.name + "\n";
+                }
+            }
+        }
+    }
+    return failed_vendors;
+}
+void display_failed_vendors_dialog(wxWindow *parent, const std::string& failed_vendors)
+{
+    // TRN Dialog text, 1 is list of vendors.
+    std::string dialog_text = format(_u8L("Update Check Failed for the Following Vendors:\n\n%1%\n"
+        "This may be because you are logged out. Log in to restore access to all your subscribed sources.\n"
+        "If you are logged in and a vendor is failing, it may no longer be available in your subscribed sources."), failed_vendors);
+    GUI::WarningDialog dialog(parent, dialog_text, _L("Update Check Failed"), wxOK);
+    dialog.ShowModal();
+}
+}
 
 PresetUpdaterWrapper::PresetUpdaterWrapper()
     : m_preset_updater(std::make_unique<PresetUpdater>())
@@ -83,6 +121,13 @@ bool PresetUpdaterWrapper::wizard_sync(const PresetBundle* preset_bundle, const
         return false;
     }
 
+    // Find secret vendors that failed to download idx in archive
+    const SharedArchiveRepositoryVector &repos = m_preset_archive_database->get_selected_archive_repositories();
+    std::string failed_vendors = proccess_failed_archives(m_ui_status->get_failed_archives(), vendors_copy, repos);
+    if (!failed_vendors.empty()) {
+        display_failed_vendors_dialog(parent, failed_vendors);
+    }
+
     // Offer update installation.  
     if (full_sync) {
         const SharedArchiveRepositoryVector &repos = m_preset_archive_database->get_selected_archive_repositories();
@@ -158,6 +203,14 @@ PresetUpdater::UpdateResult PresetUpdaterWrapper::check_updates_on_user_request(
         GUI::ErrorDialog err_msg(nullptr, failed_paths, false);
         err_msg.ShowModal();
     }
+
+    // Find secret vendors that failed to download idx in archive
+    const SharedArchiveRepositoryVector &repos = m_preset_archive_database->get_selected_archive_repositories();
+    std::string failed_vendors = proccess_failed_archives(m_ui_status->get_failed_archives(), vendors_copy, repos);
+    if (!failed_vendors.empty()) {
+        display_failed_vendors_dialog(parent, failed_vendors);
+    }
+
     // preset_updater::config_update does show wxDialog
     updater_result = m_preset_updater->config_update(old_slic3r_version, PresetUpdater::UpdateParams::SHOW_TEXT_BOX, m_preset_archive_database->get_selected_archive_repositories(), m_ui_status.get());
     return updater_result;
@@ -207,6 +260,14 @@ void PresetUpdaterWrapper::sync_preset_updater(wxEvtHandler* end_evt_handler, co
         if (this->m_ui_status->get_canceled()) { return; }
         wxCommandEvent* evt = new wxCommandEvent(EVT_CONFIG_UPDATER_SYNC_DONE);
         wxQueueEvent(end_evt_handler, evt);
+
+        // Find secret vendors that failed to download idx in archive
+        std::string failed_vendors = proccess_failed_archives(m_ui_status->get_failed_archives(), vendors_copy, repos);
+        if (!failed_vendors.empty()) {
+            wxCommandEvent* evt_arch = new wxCommandEvent(EVT_CONFIG_UPDATER_FAILED_ARCHIVE);
+            evt_arch->SetString(GUI::from_u8(failed_vendors));
+            wxQueueEvent(end_evt_handler, evt_arch);
+        }
     };
     
     m_worker_thread = std::thread(worker_body);
@@ -244,6 +305,7 @@ void PresetUpdaterUIStatus::reset(PresetUpdaterUIStatus::PresetUpdaterRetryPolic
     m_evt_handler = nullptr;
     m_error_msg.clear();
     m_target.clear();
+    m_failed_archives.clear();
 }
 
 bool PresetUpdaterUIStatus::on_attempt(int attempt, unsigned delay)
diff --git a/src/slic3r/Utils/PresetUpdaterWrapper.hpp b/src/slic3r/Utils/PresetUpdaterWrapper.hpp
index 328b71de20..f10553728c 100644
--- a/src/slic3r/Utils/PresetUpdaterWrapper.hpp
+++ b/src/slic3r/Utils/PresetUpdaterWrapper.hpp
@@ -25,6 +25,8 @@ using PresetUpdaterStatusMessageEvent = GUI::Event<wxString>;
 wxDECLARE_EVENT(EVT_PRESET_UPDATER_STATUS_END, PresetUpdaterStatusSimpleEvent);
 wxDECLARE_EVENT(EVT_PRESET_UPDATER_STATUS_PRINT, PresetUpdaterStatusMessageEvent);
 wxDECLARE_EVENT(EVT_CONFIG_UPDATER_SYNC_DONE, wxCommandEvent);
+wxDECLARE_EVENT(EVT_CONFIG_UPDATER_FAILED_ARCHIVE, wxCommandEvent);
+
 class PresetBundle; 
 class Semver;
 
@@ -55,6 +57,8 @@ public:
     HttpRetryOpt get_retry_policy() const { return m_retry_policy; }
     std::string get_error() const { return m_error_msg; }
     std::string get_target() const { return m_target; }
+    void add_failed_archive(const std::string& id) { m_failed_archives.emplace_back(id); }
+    const std::vector<std::string>&  get_failed_archives() { return m_failed_archives; }
 
     // called from PresetUpdaterUIStatusCancel (ui thread)
     void set_canceled(bool val) { m_canceled.store(val); }
@@ -68,6 +72,8 @@ private:
 
     HttpRetryOpt m_retry_policy;
     static const std::map<PresetUpdaterUIStatus::PresetUpdaterRetryPolicy, HttpRetryOpt> policy_map;
+
+    std::vector<std::string> m_failed_archives;
 };
 
 // Purpose of this class: