---
title: "Activation Troubleshooting"
slug: "activation-troubleshooting"
updated: 2025-07-01T08:13:53Z
published: 2025-07-01T08:13:53Z
canonical: "docs.avontus.com/activation-troubleshooting"
---

> ## Documentation Index
> Fetch the complete documentation index at: https://docs.avontus.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Activation Troubleshooting

This article includes helpful information and troubleshooting tips for activating Avontus Designer.

## Unable to Connect to Activation Server

![](https://cdn.document360.io/ae69c864-58f0-4711-91e1-d1c2f7dff95f/Images/Documentation/433e42cc-a57e-4d91-85a9-a1004901351a.png)

This message can occur for one of two reasons:

- **No internet connection**

In order to use the *Activate Online* feature, you must have an active internet connection. Refer to *[Manual Activation](https://avontus.document360.io/docs/manual-activation)* for activation instructions for computers that do not have an internet connection.

**Note:** Trial licenses of Avontus Designer require online activation and an active internet connection during the trial period.

- **Connection to activation server is blocked**

Network and firewall settings, user permissions, and/or internet security can prevent connection to the activation server despite having an active internet connection.

## Activation Server Cannot be Contacted

![](https://cdn.document360.io/ae69c864-58f0-4711-91e1-d1c2f7dff95f/Images/Documentation/ced1f1bc-6585-4eff-8aeb-5c69380489a3.png)

This message can occur for the same reasons as noted above.

## Unable to Activate this Computer

![](https://cdn.document360.io/ae69c864-58f0-4711-91e1-d1c2f7dff95f/Images/Documentation/1391acbf-7421-442f-98c3-5abf100b6967.png)

This message most commonly occurs when the serial number/license entered is already activated on another computer.