diff --git a/app/src/main/java/com/github/gotify/login/LoginActivity.java b/app/src/main/java/com/github/gotify/login/LoginActivity.java
index 708dd20..235d96f 100644
--- a/app/src/main/java/com/github/gotify/login/LoginActivity.java
+++ b/app/src/main/java/com/github/gotify/login/LoginActivity.java
@@ -115,11 +115,23 @@ public class LoginActivity extends AppCompatActivity {
         checkUrlProgress.setVisibility(View.VISIBLE);
         checkUrlButton.setVisibility(View.GONE);
 
-        final String fixedUrl = url.endsWith("/") ? url.substring(0, url.length() - 1) : url;
+        final String trimmedUrl = url.trim();
+        final String fixedUrl =
+                trimmedUrl.endsWith("/")
+                        ? trimmedUrl.substring(0, trimmedUrl.length() - 1)
+                        : trimmedUrl;
 
-        ClientFactory.versionApi(fixedUrl, tempSSLSettings())
-                .getVersion()
-                .enqueue(callInUI(this, onValidUrl(fixedUrl), onInvalidUrl(fixedUrl)));
+        try {
+            ClientFactory.versionApi(fixedUrl, tempSSLSettings())
+                    .getVersion()
+                    .enqueue(callInUI(this, onValidUrl(fixedUrl), onInvalidUrl(fixedUrl)));
+        } catch (Exception e) {
+            checkUrlProgress.setVisibility(View.GONE);
+            checkUrlButton.setVisibility(View.VISIBLE);
+            String errorMsg =
+                    getString(R.string.version_failed, fixedUrl + "/version", e.getMessage());
+            Utils.showSnackBar(LoginActivity.this, errorMsg);
+        }
     }
 
     public void showHttpWarning() {
@@ -301,7 +313,7 @@ public class LoginActivity extends AppCompatActivity {
     }
 
     private String versionError(String url, ApiException exception) {
-        return getString(R.string.version_failed, url + "/version", exception.code());
+        return getString(R.string.version_failed_status_code, url + "/version", exception.code());
     }
 
     private SSLSettings tempSSLSettings() {
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index bb40d50..d6d881c 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -4,7 +4,8 @@
     <string name="navigation_drawer_close">Close navigation drawer</string>
     <string name="nav_header_desc">Navigation header</string>
     <string name="found_gotify_version">Found Gotify v%s</string>
-    <string name="version_failed">Request to \'%s\' failed with status code %d</string>
+    <string name="version_failed_status_code">Request to \'%s\' failed with status code %d</string>
+    <string name="version_failed">Request to \'%s\' failed. %s.</string>
     <string name="wronguserpw">There is no user with this username and password</string>
     <string name="create_client_title">Client Name</string>
     <string name="create_client_message">Chose a name for your session</string>