---
title: "Quasar Surface IP Address Issue"
slug: "quasar-surface-ip-address-issue"
updated: 2024-12-10T13:53:20Z
published: 2025-02-11T14:51:55Z
canonical: "docs.telosalliance.com/quasar-surface-ip-address-issue"
---

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

# Quasar Surface IP Address Issue

## Scope

There is a known issue with Quasar MTS software version 1.4.0.24 and older where a certain IP address will be rejected from the front panel.

[This issue is addressed in the Quasar version 2.0 system update. Click here for full instructions and release notes on version 2.0](/article/023o61ooy9-quasar-system-update-version-2-0-0-release-notes-update-instructions)

## Description

When setting the IP address of the Quasar surface, you may notice that it won't accept IP addresses in certain ranges. For example, entering 10.47.144.171 into the **IP Address** field of Quasar's **System Setup** page of the touch screen and pressing **Save and Reboot** results in the IP Address reverting to 0.0.0.0. This does not happen with most IP addresses.

![](https://cdn.document360.io/57e3cd80-d493-453c-9672-ad1b043dadc3/Images/Documentation/1b0d3ab2-c0a4-433b-8584-9e24156da50c.png)

## Solution & Work Around

The Quasar development team has identified the problem and will be including the fix in the next Quasar software release.

In the meantime, you can set the IP address of the Quasar Master module to an IP address that it will accept, log into the configuration website using a PC on the substitute subnet, and change the IP address to the desired value using the **Network Setup** page.

The master module will accept the IP address until the next time **Save and Reboot** is selected from the Quasar's **System Setup** page of the touch screen.

## Let us know how we can help

If you have further questions on this topic or have ideas about improving this document, please [contact us](https://www.telosalliance.com/support-request).