diff --git a/kernel/sparkex/src/main/java/com/twosigma/beakerx/widget/SparkUI.java b/kernel/sparkex/src/main/java/com/twosigma/beakerx/widget/SparkUI.java
index 7dc5704923..a844603d0b 100644
--- a/kernel/sparkex/src/main/java/com/twosigma/beakerx/widget/SparkUI.java
+++ b/kernel/sparkex/src/main/java/com/twosigma/beakerx/widget/SparkUI.java
@@ -111,16 +111,20 @@ private void initSparkContext(Message parentMessage) {
 
   private void configureSparkContext(Message parentMessage, KernelFunctionality kernel) {
     try {
+      this.sparkUIForm.setAllToDisabled();
       TryResult configure = sparkEngine.configure(kernel, this, parentMessage);
       if (configure.isError()) {
         this.sparkUIForm.sendError(StacktraceHtmlPrinter.printRedBold(ERROR_CREATING_SPARK_SESSION));
+        this.sparkUIForm.setAllToEnabled();
       } else {
         singleSparkSession.active();
         sparkUIForm.saveDefaults();
+        sparkUIForm.getConnectButton().setDomClasses(asList("hidden"));
         sparkUiDefaults.saveProfileName(sparkUIForm.getProfileName());
         applicationStart();
       }
     } catch (Exception e) {
+      this.sparkUIForm.setAllToEnabled();
       this.sparkUIForm.sendError(StacktraceHtmlPrinter.printRedBold(e.getMessage()));
     }
   }
@@ -132,7 +136,6 @@ private SparkSession getSparkSession() {
   private void applicationStart() {
     this.statusPanel = new SparkUIStatus(message -> getSparkSession().sparkContext().stop());
     this.sparkUIForm.setDomClasses(new ArrayList<>(asList("bx-disabled")));
-    this.sparkUIForm.setAllToDisabled();
     add(0, this.statusPanel);
     sendUpdate(SPARK_APP_ID, sparkEngine.getSparkAppId());
     sendUpdate("sparkUiWebUrl", sparkEngine.getSparkUiWebUrl());
diff --git a/kernel/sparkex/src/main/java/com/twosigma/beakerx/widget/SparkUIForm.java b/kernel/sparkex/src/main/java/com/twosigma/beakerx/widget/SparkUIForm.java
index c22bdbc513..2f7764824c 100644
--- a/kernel/sparkex/src/main/java/com/twosigma/beakerx/widget/SparkUIForm.java
+++ b/kernel/sparkex/src/main/java/com/twosigma/beakerx/widget/SparkUIForm.java
@@ -316,11 +316,20 @@ public String getProfileName() {
   public void setAllToDisabled() {
     this.profileManagement.getChildren().stream().map(x -> (ValueWidget) x).forEach(x -> x.setDisabled(true));
     this.advancedOption.setDisabledToAll();
+    this.connectButton.setDisabled(true);
+    this.masterURL.setDisabled(true);
+    this.executorMemory.setDisabled(true);
+    this.executorCores.setDisabled(true);
   }
 
   public void setAllToEnabled() {
     this.profileManagement.getChildren().stream().map(x -> (ValueWidget) x).forEach(x -> x.setDisabled(false));
     this.advancedOption.setEnabledToAll();
+    this.connectButton.setDisabled(false);
+    this.connectButton.setDomClasses(new ArrayList<>());
+    this.masterURL.setDisabled(false);
+    this.executorMemory.setDisabled(false);
+    this.executorCores.setDisabled(false);
   }
 
 }