diff --git a/krusader/Panel/panelfunc.cpp b/krusader/Panel/panelfunc.cpp
--- a/krusader/Panel/panelfunc.cpp
+++ b/krusader/Panel/panelfunc.cpp
@@ -308,6 +308,7 @@
 
         // may get a new vfs for this url
         vfs* vfs = KrVfsHandler::instance().getVfs(url, files());
+        vfs->setParentWindow(krMainWindow);
         connect(vfs, &vfs::aboutToOpenDir, &krMtMan, &KMountMan::autoMount, Qt::DirectConnection);
         if (vfs != vfsP) {
             panel->view->setFiles(0);
diff --git a/krusader/VFS/default_vfs.cpp b/krusader/VFS/default_vfs.cpp
--- a/krusader/VFS/default_vfs.cpp
+++ b/krusader/VFS/default_vfs.cpp
@@ -40,6 +40,7 @@
 #include <KIO/DeleteJob>
 #include <KIO/DropJob>
 #include <KIO/ListJob>
+#include <KIO/JobUiDelegate>
 #include <KIOCore/KFileItem>
 #include <KIOCore/KProtocolManager>
 
@@ -212,6 +213,12 @@
     connect(job, &KIO::ListJob::permanentRedirection, this, &default_vfs::slotRedirection);
     connect(job, SIGNAL(result(KJob*)), this, SLOT(slotListResult(KJob*)));
 
+    // ensure connection credentials are asked only once
+    if(!parentWindow.isNull()) {
+        KIO::JobUiDelegate *ui = static_cast<KIO::JobUiDelegate*>(job->uiDelegate());
+        ui->setWindow(parentWindow);
+    }
+
     emit refreshJobStarted(job);
 
     _listError = false;
diff --git a/krusader/VFS/vfs.h b/krusader/VFS/vfs.h
--- a/krusader/VFS/vfs.h
+++ b/krusader/VFS/vfs.h
@@ -147,6 +147,9 @@
     /// Add 'file' scheme to non-empty URL without scheme
     static QUrl preferLocalUrl(const QUrl &url);
 
+    // set the parent window to be used for dialogs
+    void setParentWindow(QWidget *widget) { parentWindow = widget; }
+
 public slots:
     /// Re-read the current directory files or change to another directory. Blocking.
     /// Returns true if directory was read. Returns false if failed or refresh job was killed.
@@ -201,6 +204,7 @@
     VFS_TYPE _type;         // the vfs type.
     QUrl _currentDirectory; // the path or file the VFS originates from.
     bool _isRefreshing; // true if vfs is busy with refreshing
+    QPointer<QWidget> parentWindow;
 
 protected slots:
     /// Handle result after job (except when refreshing!) finished