Troubleshooting Sync Issues and Server Errors in the Jolt App

If you see a "Sync Error" or "Server Error" message in the Jolt app, it typically means the app is having trouble connecting to the Jolt server. This guide walks you through resolving the issue step by step.

⚠️ Important: Do NOT Delete the Jolt App

Deleting (uninstalling) the Jolt app will result in permanent data loss for any unsynced information. Do not delete the app to try to fix a sync error. Follow the steps below instead.

Step 1: Check Your Sync Status

Look at the top of the Jolt app screen. You may see one of these messages:

"Syncing up..." — The app is sending your local data to the Jolt server.
"Syncing down..." — The app is downloading updated data from the Jolt server.
"Synced a few seconds ago" — The sync completed successfully. Your issue may already be resolved.
"Sync Error" or "Server Error" — The app could not connect. Continue with the steps below.

Tap on the sync status bar at the top of the screen to see more details about what's happening.

Note: The Jolt app must be open and the screen must be on for syncing to occur. Syncing does not happen in the background.

Step 2: Restart Your Device

A simple restart often resolves temporary connection issues:

Press and hold the power button for 3–8 seconds.
Select Power Off or Restart from the menu that appears.
Wait for the device to fully restart, then reopen the Jolt app. If using a Jolt Printer Station, allow a few moments for app to restart and you should see the app open automatically on the tablet screen.
Check the sync status at the top of the screen.

Step 3: Check Your Wi-Fi Connection

The Jolt app requires an active internet connection to sync.

Open your device's Settings, then tap Wi-Fi.
Confirm your device is connected to a private, password-protected Wi-Fi network. If using a JPS (Jolt Printer Station), reference the Connecting your JPS to WiFi article
Confirm other devices connected network have a working Wi-Fi connection.
If connected but still having issues, try toggling Wi-Fi off and back on or forgetting the network and re-singing in. Ensure you know your Wi-Fi password before taking this step.
If not connected to the correct network, connect now and recheck the Jolt app.

Wi-Fi frequency notes:

The Jolt app works on both 2.4GHz and 5GHz Wi-Fi networks.
Exception: If you are using Jolt Labeling with a standalone Zebra printer, you must connect to a 2.4GHz network for the printer connection. Ask your network administrator if you're unsure which frequency your network uses.

Step 4: Verify Jolt Is Not Blocked on Your Network

Some business or school networks block certain websites by default. Ensure that jolt.com is not blocked on your network.

Contact your IT department or whoever manages your network to confirm Jolt is on the allow list.
For a full list of domains that need to be accessible, see our article: Jolt Platform Allow-List Information.

Step 5: Update the Jolt App

Running an outdated version of the Jolt app can cause sync failures. Make sure you're on the latest version:

iPad / iOS devices:

Open the App Store.
Search for "Jolt".
If an Update button appears, tap it. If you see Open, you're already up to date.

Android / Fire OS devices:

Open Chrome and go to jps.jolt.com.
Tap "Update Jolt" and follow the on-screen instructions.

For a detailed walkthrough, see: Update the Jolt App

If using a JPS (Jolt Printer Station), see Updating the JPS Launcher/Jolt App on a JPS Device

Step 6: Update Your Device's Operating System

An outdated OS can cause compatibility issues with the Jolt app:

Open your device's Settings.
Go to General > Software Update (iPad/iOS) or System > System Updates (Android).
Install any available updates and restart your device.

When to Contact Jolt Technical Support

Contact Jolt Technical Support if any of the following apply:

The sync has been running for more than 1 hour without completing.
You've completed all the steps above and the error persists.
You see a specific error code or message that isn't "Sync Error" or "Server Error."
Multiple devices at the same location are experiencing the same issue.

When contacting support, please provide:

Your location name in Jolt
The device type (iPad, Android tablet, Fire tablet) and model
The exact error message shown (a screenshot is ideal)
How long the issue has been occurring
Whether you completed all the troubleshooting steps above

Frequently Asked Questions

Will I lose data if I see a sync error?

Not necessarily. Data entered on the device is stored locally until it can sync. As long as you do not delete the app, your data should sync once the connection is restored.

Can I still use the app while it's showing a sync error?

Yes, you can continue completing lists and entering data. The app will attempt to sync the data once the connection is restored.

Why does the error keep coming back?

Recurring sync errors usually indicate an ongoing network issue at your location. If restarting the device and checking Wi-Fi doesn't help, work with your IT team to ensure Jolt's domains are not being blocked and that the network connection is stable.