E-DTT-1: No Internet

Troubleshoot the 'No Internet. Check Firewall and Router' error on your Trainer device

What this error means

Your Trainer successfully connected to your Wi-Fi network but cannot reach the remote server. This typically indicates that your router or firewall is blocking the device from accessing the internet.

The device has network connectivity but external communication is being restricted by your network configuration.

Common causes

Strict firewall settings — Your router's firewall security level is too restrictive
Device blocking — The Trainer is blocked in your router's Access Control or Security settings
Network filters — Features like child protection, IoT isolation, or private network modes are preventing outbound communication

How to fix this error

Access your router settings

Open a web browser and navigate to your router's admin panel. Most routers use one of these addresses:

192.168.0.1
192.168.1.1

Check the label on your router for the correct address and default login credentials. You can also search online for your specific router model's setup instructions.

Check for blocked devices

Look for settings menus labeled:

Access Control
MAC Filtering
Device List
Connected Devices

Verify that your Trainer device is not on a blocked or restricted list. If you find it blocked, remove it from the list and save your changes.

Adjust firewall settings

If your router offers firewall security levels (High, Medium, Low):

Change from High to Medium or Low
Save your changes

Only lower your firewall settings if you understand the security implications. Medium is usually sufficient for most home networks.

Reboot your devices

Restart both devices in this order:

Power cycle your router (wait 30 seconds before turning it back on)
Restart your Trainer device

Wait 2-3 minutes for everything to reconnect, then check if the error clears.

Alternative: Test with a mobile hotspot

If the error persists after adjusting router settings, your router may have IoT traffic filtering that cannot be easily disabled. Use your phone's hotspot to confirm this is the issue.

Enable your phone's hotspot

Turn on the mobile hotspot feature:

Android: Settings → Network & Internet → Hotspot & tethering
iPhone: Personal Hotspot Guide

Connect the Trainer to your hotspot

On your Trainer, open the Wi-Fi setup page
Using a laptop or second device, connect to the "Trainer Setup" Wi-Fi network
Follow the setup steps to connect the Trainer to your phone's hotspot

Verify the connection

If the error disappears when connected to your phone's hotspot, this confirms your home router is blocking the device.

Success! The Trainer can reach the internet through your mobile connection.

Permanent router configuration

Once you've confirmed the router is the issue, you can create a permanent fix:

Summary

Error E-DTT-1 indicates your device has local network access but cannot reach the internet due to router or firewall restrictions.

Follow the steps above to allow traffic through your router's firewall, or use the mobile hotspot test to confirm the issue. Once outbound traffic is permitted, the Trainer automatically reconnects and the error clears.