diff --git a/src/main/res/values/strings.xml b/src/main/res/values/strings.xml
index b006e3478..44bbb6a09 100644
--- a/src/main/res/values/strings.xml
+++ b/src/main/res/values/strings.xml
@@ -761,10 +761,11 @@
     <string name="search_countries">Search countries</string>
     <string name="verify_x">Verify %s</string>
     <string name="we_have_sent_you_an_sms_to_x"><![CDATA[We have sent you an SMS to <b>%s</b>.]]></string>
-    <string name="we_have_sent_you_the_sms_again">We have sent you the SMS again.</string>
+    <string name="we_have_sent_you_another_sms">We have sent you another SMS with a 6 digit code.</string>
     <string name="please_enter_pin_below">Please enter the 6 digit pin below.</string>
     <string name="resend_sms">Resend SMS</string>
     <string name="resend_sms_in">Resend SMS (%s)</string>
+    <string name="wait_x">Please wait (%s)</string>
     <string name="back">back</string>
     <string name="possible_pin">Automatically pasted possible pin from clipboard.</string>
     <string name="please_enter_pin">Please enter your 6 digit pin.</string>
@@ -773,4 +774,13 @@
     <string name="no">No</string>
     <string name="verifying">Verifying…</string>
     <string name="requesting_sms">Requesting SMS…</string>
+    <string name="incorrect_pin">The pin you have entered is incorrect.</string>
+    <string name="unknown_api_error_network">Unknown network error.</string>
+    <string name="unknown_api_error_response">Unknown response from server.</string>
+    <string name="unable_to_connect_to_server">Unable to connect to server.</string>
+    <string name="unable_to_establish_secure_connection">Unable to establish secure connection.</string>
+    <string name="unable_to_find_server">Unable to find server.</string>
+    <string name="invalid_user_input">Invalid user input</string>
+    <string name="temporarily_unavailable">Temporarily unavailable. Try again later.</string>
+    <string name="no_network_connection">No network connection.</string>
 </resources>
diff --git a/src/quick/java/eu/siacs/conversations/services/QuickConversationsService.java b/src/quick/java/eu/siacs/conversations/services/QuickConversationsService.java
index 1ce9a78fb..e625a8e60 100644
--- a/src/quick/java/eu/siacs/conversations/services/QuickConversationsService.java
+++ b/src/quick/java/eu/siacs/conversations/services/QuickConversationsService.java
@@ -18,6 +18,8 @@ import java.util.Set;
 import java.util.WeakHashMap;
 import java.util.concurrent.atomic.AtomicBoolean;
 
+import javax.net.ssl.SSLHandshakeException;
+
 import eu.siacs.conversations.Config;
 import eu.siacs.conversations.crypto.sasl.Plain;
 import eu.siacs.conversations.entities.Account;
@@ -33,8 +35,10 @@ public class QuickConversationsService {
     public static final int API_ERROR_OTHER = -1;
     public static final int API_ERROR_UNKNOWN_HOST = -2;
     public static final int API_ERROR_CONNECT = -3;
+    public static final int API_ERROR_SSL_HANDSHAKE = -4;
+    public static final int API_ERROR_AIRPLANE_MODE = -5;
 
-    private static final String BASE_URL = "https://venus.fritz.box:4567";
+    private static final String BASE_URL = "http://venus.fritz.box:4567";
 
     private final XmppConnectionService service;
 
@@ -145,7 +149,7 @@ public class QuickConversationsService {
         }
     }
 
-    public void verify(Account account, String pin) {
+    public void verify(final Account account, String pin) {
         /**
          * POST /password
          * authentication gesetzt mit telephone nummber und verification code
@@ -177,6 +181,9 @@ public class QuickConversationsService {
                     connection.connect();
                     final int code = connection.getResponseCode();
                     if (code == 200) {
+                        account.setOption(Account.OPTION_UNVERIFIED, false);
+                        account.setOption(Account.OPTION_DISABLED, false);
+                        service.updateAccount(account);
                         synchronized (mOnVerification) {
                             for (OnVerification onVerification : mOnVerification) {
                                 onVerification.onVerificationSucceeded();
@@ -210,11 +217,15 @@ public class QuickConversationsService {
         }
     }
 
-    private static int getApiErrorCode(Exception e) {
-        if (e instanceof UnknownHostException) {
+    private int getApiErrorCode(Exception e) {
+        if (!service.hasInternetConnection()) {
+            return API_ERROR_AIRPLANE_MODE;
+        } else if (e instanceof UnknownHostException) {
             return API_ERROR_UNKNOWN_HOST;
         } else if (e instanceof ConnectException) {
             return API_ERROR_CONNECT;
+        } else if (e instanceof SSLHandshakeException) {
+            return API_ERROR_SSL_HANDSHAKE;
         } else {
             Log.d(Config.LOGTAG,e.getClass().getName());
             return API_ERROR_OTHER;
diff --git a/src/quick/java/eu/siacs/conversations/ui/EnterPhoneNumberActivity.java b/src/quick/java/eu/siacs/conversations/ui/EnterPhoneNumberActivity.java
index 24670a31b..a98059372 100644
--- a/src/quick/java/eu/siacs/conversations/ui/EnterPhoneNumberActivity.java
+++ b/src/quick/java/eu/siacs/conversations/ui/EnterPhoneNumberActivity.java
@@ -20,6 +20,7 @@ import eu.siacs.conversations.R;
 import eu.siacs.conversations.databinding.ActivityEnterNumberBinding;
 import eu.siacs.conversations.services.QuickConversationsService;
 import eu.siacs.conversations.ui.drawable.TextDrawable;
+import eu.siacs.conversations.ui.util.ApiErrorDialogHelper;
 import eu.siacs.conversations.utils.PhoneNumberUtilWrapper;
 import io.michaelrocks.libphonenumber.android.NumberParseException;
 import io.michaelrocks.libphonenumber.android.PhoneNumberUtil;
@@ -32,8 +33,6 @@ public class EnterPhoneNumberActivity extends XmppActivity implements QuickConve
     private ActivityEnterNumberBinding binding;
 
     private String region = null;
-    private boolean requestingVerification = false;
-
     private final TextWatcher countryCodeTextWatcher = new TextWatcher() {
         @Override
         public void beforeTextChanged(CharSequence s, int start, int count, int after) {
@@ -65,6 +64,7 @@ public class EnterPhoneNumberActivity extends XmppActivity implements QuickConve
             }
         }
     };
+    private boolean requestingVerification = false;
 
     @Override
     protected void refreshUiReal() {
@@ -159,6 +159,8 @@ public class EnterPhoneNumberActivity extends XmppActivity implements QuickConve
         this.binding.number.setEnabled(!requesting);
         this.binding.next.setEnabled(!requesting);
         this.binding.next.setText(requesting ? R.string.requesting_sms : R.string.next);
+        this.binding.progressBar.setVisibility(requesting ? View.VISIBLE : View.GONE);
+        this.binding.progressBar.setIndeterminate(requesting);
     }
 
     @Override
@@ -176,8 +178,9 @@ public class EnterPhoneNumberActivity extends XmppActivity implements QuickConve
 
     @Override
     public void onVerificationRequestFailed(int code) {
-        runOnUiThread(()->{
+        runOnUiThread(() -> {
             setRequestingVerificationState(false);
+            ApiErrorDialogHelper.create(this, code).show();
         });
     }
 
diff --git a/src/quick/java/eu/siacs/conversations/ui/VerifyActivity.java b/src/quick/java/eu/siacs/conversations/ui/VerifyActivity.java
index edecb52ae..e6718d809 100644
--- a/src/quick/java/eu/siacs/conversations/ui/VerifyActivity.java
+++ b/src/quick/java/eu/siacs/conversations/ui/VerifyActivity.java
@@ -13,14 +13,13 @@ import android.os.SystemClock;
 import android.support.design.widget.Snackbar;
 import android.support.v7.widget.Toolbar;
 import android.text.Html;
-import android.util.Log;
 import android.view.View;
 
-import eu.siacs.conversations.Config;
 import eu.siacs.conversations.R;
 import eu.siacs.conversations.databinding.ActivityVerifyBinding;
 import eu.siacs.conversations.entities.Account;
 import eu.siacs.conversations.services.QuickConversationsService;
+import eu.siacs.conversations.ui.util.ApiErrorDialogHelper;
 import eu.siacs.conversations.ui.util.PinEntryWrapper;
 import eu.siacs.conversations.utils.AccountUtils;
 import eu.siacs.conversations.utils.PhoneNumberUtilWrapper;
@@ -32,7 +31,8 @@ import static android.content.ClipDescription.MIMETYPE_TEXT_PLAIN;
 public class VerifyActivity extends XmppActivity implements ClipboardManager.OnPrimaryClipChangedListener, QuickConversationsService.OnVerification, QuickConversationsService.OnVerificationRequested {
 
     public static final String EXTRA_RETRY_SMS_AFTER = "retry_sms_after";
-
+    private static final String EXTRA_RETRY_VERIFICATION_AFTER = "retry_verification_after";
+    private final Handler mHandler = new Handler();
     private ActivityVerifyBinding binding;
     private Account account;
     private PinEntryWrapper pinEntryWrapper;
@@ -41,15 +41,20 @@ public class VerifyActivity extends XmppActivity implements ClipboardManager.OnP
     private boolean verifying = false;
     private boolean requestingVerification = false;
     private long retrySmsAfter = 0;
-
-    private final Handler mHandler = new Handler();
-
-
     private final Runnable SMS_TIMEOUT_UPDATER = new Runnable() {
         @Override
         public void run() {
             if (setTimeoutLabelInResendButton()) {
-                mHandler.postDelayed(this,300);
+                mHandler.postDelayed(this, 300);
+            }
+        }
+    };
+    private long retryVerificationAfter = 0;
+    private final Runnable VERIFICATION_TIMEOUT_UPDATER = new Runnable() {
+        @Override
+        public void run() {
+            if (setTimeoutLabelInNextButton()) {
+                mHandler.postDelayed(this, 300);
             }
         }
     };
@@ -59,7 +64,7 @@ public class VerifyActivity extends XmppActivity implements ClipboardManager.OnP
             long remaining = retrySmsAfter - SystemClock.elapsedRealtime();
             if (remaining >= 0) {
                 binding.resendSms.setEnabled(false);
-                binding.resendSms.setText(getString(R.string.resend_sms_in, TimeframeUtils.resolve(VerifyActivity.this,remaining)));
+                binding.resendSms.setText(getString(R.string.resend_sms_in, TimeframeUtils.resolve(VerifyActivity.this, remaining)));
                 return true;
             }
         }
@@ -68,6 +73,20 @@ public class VerifyActivity extends XmppActivity implements ClipboardManager.OnP
         return false;
     }
 
+    private boolean setTimeoutLabelInNextButton() {
+        if (retryVerificationAfter != 0) {
+            long remaining = retryVerificationAfter - SystemClock.elapsedRealtime();
+            if (remaining >= 0) {
+                binding.next.setEnabled(false);
+                binding.next.setText(getString(R.string.wait_x, TimeframeUtils.resolve(VerifyActivity.this, remaining)));
+                return true;
+            }
+        }
+        this.binding.next.setEnabled(!verifying);
+        this.binding.next.setText(verifying ? R.string.verifying : R.string.next);
+        return false;
+    }
+
     @Override
     protected void onCreate(final Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
@@ -75,7 +94,8 @@ public class VerifyActivity extends XmppActivity implements ClipboardManager.OnP
         boolean verifying = savedInstanceState != null && savedInstanceState.getBoolean("verifying");
         boolean requestingVerification = savedInstanceState != null && savedInstanceState.getBoolean("requesting_verification", false);
         this.pasted = savedInstanceState != null ? savedInstanceState.getString("pasted") : null;
-        this.retrySmsAfter = savedInstanceState != null ? savedInstanceState.getLong(EXTRA_RETRY_SMS_AFTER,0L) : 0L;
+        this.retrySmsAfter = savedInstanceState != null ? savedInstanceState.getLong(EXTRA_RETRY_SMS_AFTER, 0L) : 0L;
+        this.retryVerificationAfter = savedInstanceState != null ? savedInstanceState.getLong(EXTRA_RETRY_VERIFICATION_AFTER, 0L) : 0L;
         this.binding = DataBindingUtil.setContentView(this, R.layout.activity_verify);
         setSupportActionBar((Toolbar) this.binding.toolbar);
         this.pinEntryWrapper = new PinEntryWrapper(binding.pinBox);
@@ -182,6 +202,7 @@ public class VerifyActivity extends XmppActivity implements ClipboardManager.OnP
         savedInstanceState.putBoolean("verifying", this.verifying);
         savedInstanceState.putBoolean("requesting_verification", this.requestingVerification);
         savedInstanceState.putLong(EXTRA_RETRY_SMS_AFTER, this.retrySmsAfter);
+        savedInstanceState.putLong(EXTRA_RETRY_VERIFICATION_AFTER, this.retryVerificationAfter);
         if (this.pasted != null) {
             savedInstanceState.putString("pasted", this.pasted);
         }
@@ -192,15 +213,21 @@ public class VerifyActivity extends XmppActivity implements ClipboardManager.OnP
     public void onStart() {
         super.onStart();
         clipboardManager.addPrimaryClipChangedListener(this);
+        final Intent intent = getIntent();
+        this.retrySmsAfter = intent != null ? intent.getLongExtra(EXTRA_RETRY_SMS_AFTER, this.retrySmsAfter) : this.retrySmsAfter;
         if (this.retrySmsAfter > 0) {
             mHandler.post(SMS_TIMEOUT_UPDATER);
         }
+        if (this.retryVerificationAfter > 0) {
+            mHandler.post(VERIFICATION_TIMEOUT_UPDATER);
+        }
     }
 
     @Override
     public void onStop() {
         super.onStop();
         mHandler.removeCallbacks(SMS_TIMEOUT_UPDATER);
+        mHandler.removeCallbacks(VERIFICATION_TIMEOUT_UPDATER);
         clipboardManager.removePrimaryClipChangedListener(this);
         if (xmppConnectionService != null) {
             xmppConnectionService.getQuickConversationsService().removeOnVerificationListener(this);
@@ -233,6 +260,14 @@ public class VerifyActivity extends XmppActivity implements ClipboardManager.OnP
         }
     }
 
+    private void performPostVerificationRedirect() {
+        Intent intent = new Intent(this, PublishProfilePictureActivity.class);
+        intent.putExtra(PublishProfilePictureActivity.EXTRA_ACCOUNT, account.getJid().asBareJid().toEscapedString());
+        intent.putExtra("setup", true);
+        startActivity(intent);
+        finish();
+    }
+
     @Override
     public void onPrimaryClipChanged() {
         this.pasted = null;
@@ -242,39 +277,49 @@ public class VerifyActivity extends XmppActivity implements ClipboardManager.OnP
     }
 
     @Override
-    public void onVerificationFailed(int code) {
+    public void onVerificationFailed(final int code) {
         runOnUiThread(() -> {
             setVerifyingState(false);
+            if (code == 401) {
+                AlertDialog.Builder builder = new AlertDialog.Builder(this);
+                builder.setMessage(R.string.incorrect_pin);
+                builder.setPositiveButton(R.string.ok, null);
+                builder.create().show();
+            } else {
+                ApiErrorDialogHelper.create(this, code).show();
+            }
         });
-        Log.d(Config.LOGTAG,"code="+code);
     }
 
     @Override
     public void onVerificationSucceeded() {
-
+        runOnUiThread(this::performPostVerificationRedirect);
     }
 
     @Override
     public void onVerificationRetryAt(long timestamp) {
-
+        this.retryVerificationAfter = timestamp;
+        runOnUiThread(() -> setVerifyingState(false));
+        mHandler.removeCallbacks(VERIFICATION_TIMEOUT_UPDATER);
+        runOnUiThread(VERIFICATION_TIMEOUT_UPDATER);
     }
 
     //send sms again button callback
     @Override
     public void onVerificationRequestFailed(int code) {
-        runOnUiThread(()->{
+        runOnUiThread(() -> {
             setRequestingVerificationState(false);
+            ApiErrorDialogHelper.create(this, code).show();
         });
-        Log.d(Config.LOGTAG,"code="+code);
     }
 
     //send sms again button callback
     @Override
     public void onVerificationRequested() {
-        runOnUiThread(()-> {
+        runOnUiThread(() -> {
             setRequestingVerificationState(false);
             AlertDialog.Builder builder = new AlertDialog.Builder(this);
-            builder.setMessage(R.string.we_have_sent_you_the_sms_again);
+            builder.setMessage(R.string.we_have_sent_you_another_sms);
             builder.setPositiveButton(R.string.ok, null);
             builder.create().show();
         });
@@ -283,7 +328,7 @@ public class VerifyActivity extends XmppActivity implements ClipboardManager.OnP
     @Override
     public void onVerificationRequestedRetryAt(long timestamp) {
         this.retrySmsAfter = timestamp;
-        runOnUiThread(()-> setRequestingVerificationState(false));
+        runOnUiThread(() -> setRequestingVerificationState(false));
         mHandler.removeCallbacks(SMS_TIMEOUT_UPDATER);
         runOnUiThread(SMS_TIMEOUT_UPDATER);
     }
diff --git a/src/quick/java/eu/siacs/conversations/ui/util/ApiErrorDialogHelper.java b/src/quick/java/eu/siacs/conversations/ui/util/ApiErrorDialogHelper.java
new file mode 100644
index 000000000..e22551570
--- /dev/null
+++ b/src/quick/java/eu/siacs/conversations/ui/util/ApiErrorDialogHelper.java
@@ -0,0 +1,47 @@
+package eu.siacs.conversations.ui.util;
+
+import android.app.AlertDialog;
+import android.app.Dialog;
+import android.content.Context;
+import android.support.annotation.StringRes;
+
+import eu.siacs.conversations.R;
+import eu.siacs.conversations.services.QuickConversationsService;
+
+public class ApiErrorDialogHelper {
+
+    public static Dialog create(Context context, int code) {
+        @StringRes final int res;
+        switch (code) {
+            case QuickConversationsService.API_ERROR_AIRPLANE_MODE:
+                res = R.string.no_network_connection;
+                break;
+            case QuickConversationsService.API_ERROR_OTHER:
+                res = R.string.unknown_api_error_network;
+                break;
+            case QuickConversationsService.API_ERROR_CONNECT:
+                res = R.string.unable_to_connect_to_server;
+                break;
+            case QuickConversationsService.API_ERROR_SSL_HANDSHAKE:
+                res = R.string.unable_to_establish_secure_connection;
+                break;
+            case QuickConversationsService.API_ERROR_UNKNOWN_HOST:
+                res = R.string.unable_to_find_server;
+                break;
+            case 400:
+                res = R.string.invalid_user_input;
+                break;
+            case 502:
+            case 503:
+            case 504:
+                res = R.string.temporarily_unavailable;
+                break;
+            default:
+                res = R.string.unknown_api_error_response;
+        }
+        AlertDialog.Builder builder = new AlertDialog.Builder(context);
+        builder.setMessage(res);
+        builder.setPositiveButton(R.string.ok, null);
+        return builder.create();
+    }
+}
diff --git a/src/quick/res/layout/activity_enter_number.xml b/src/quick/res/layout/activity_enter_number.xml
index aba47feb0..78d183dd4 100644
--- a/src/quick/res/layout/activity_enter_number.xml
+++ b/src/quick/res/layout/activity_enter_number.xml
@@ -33,7 +33,7 @@
                 <LinearLayout
                     android:id="@+id/phone_number_box"
                     android:layout_width="256dp"
-                    android:layout_height="match_parent"
+                    android:layout_height="wrap_content"
                     android:layout_above="@+id/next"
                     android:layout_below="@+id/instructions"
                     android:layout_centerHorizontal="true"
@@ -82,6 +82,13 @@
                             android:longClickable="false"
                             android:maxLines="1" />
                     </LinearLayout>
+
+                    <ProgressBar
+                        android:id="@+id/progressBar"
+                        style="?android:attr/progressBarStyle"
+                        android:layout_width="wrap_content"
+                        android:layout_height="wrap_content"
+                        android:layout_gravity="center" />
                 </LinearLayout>
                 <Button
                     android:id="@+id/next"