---
title: "404 Error After Logging into Lynx Admin Web Page"
slug: "lynx-404-error-after-logging-into-lynx-admin-web-page"
description: "In LYNX versions 1.5.x, occasionally a user will receive a 404 Not Found error when attempting to log in to Lynx's admin page using valid credentials. This troubleshooting article shows how to address that."
updated: 2022-06-06T18:36:08Z
published: 2022-06-06T18:36:08Z
canonical: "healthcare.rapididentity.com/lynx-404-error-after-logging-into-lynx-admin-web-page"
---

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

# 404 Error After Logging into Lynx Admin Web Page

## 404 Error After Logging into Lynx Admin Web Page

### APPLIES TO

LYNX versions 1.5.x

### PROBLEM/NEED

User receives HTTP 404 Not Found error when attempting to login to Lynx admin page using valid credentials.

NOTE: Lynx will properly recognize invalid credentials.

![](https://cdn.document360.io/f2567005-8048-43b2-8bfc-3abc2da42bca/Images/Documentation/404-error-after-logging-into-lynx-admin-web-page-image-6u01qmx5.png) ![](https://cdn.document360.io/f2567005-8048-43b2-8bfc-3abc2da42bca/Images/Documentation/404-error-after-logging-into-lynx-admin-web-page-image-m3fuh5bx.png)

### ROOT CAUSE 1: Lynx is configured to login as Local System Account

One cause of this issue is that the HealthCast Lynx server service is configured to log on as a Local System Account. The Local System Account would not have the required permissions to access the Lynx database or perform other necessary functions.

![](https://cdn.document360.io/f2567005-8048-43b2-8bfc-3abc2da42bca/Images/Documentation/404-error-after-logging-into-lynx-admin-web-page-image-jyouirfz.png)

### PRESENTATION 1

When this happens, the LYNX logs will include an error similar to the following:

2019-11-18 10:02:53.645 -08:00 [Error] An unhandled exception has occurred: Index was out of range. Must be non-negative and less than the size of the collection. Parameter name: index System.ArgumentOutOfRangeException: Index was out of range. Must be non-negative and less than the size of the collection. Parameter name: index

### RESOLUTION 1: Configure Lynx service login to use a domain account.

1. Configure the HealthCast Lynx server service to log on as a domain user.
  1. ![](https://cdn.document360.io/f2567005-8048-43b2-8bfc-3abc2da42bca/Images/Documentation/404-error-after-logging-into-lynx-admin-web-page-image-zgnjw4j9.png)
2. Restart the HealthCast Lynx server service.

### ROOT CAUSE 2: Lynx has incorrect ProxCard Table Type or Database Type

If the incorrect ProxCardTableType or DatabaseType is set in the C:\ProgramData\HealthCast\Lynx\config.ini file, Lynx will generate a 404 error after logging in to the Lynx admin page.

### PRESENTATION 2

The Lynx log files (C:\ProgramData\HealthCast\Lynx\logs) may also contain database access or table not found errors.

### RESOLUTION 2: Verify Lynx has the correct ProxCard Table Type set in the config.ini file

1. On the Lynx server, browse to **C:\ProgramData\HealthCast\Lynx\** folder and edit the **config.ini** file with a text editor such as Notepad.
2. Check that the **DatabaseType**setting is correct
  1. 0 - Embedded database (non-SQL)
  2. 1 - SQL Server Database
3. Check that the **ProxCardTableType** setting is correct
  1. 0 - Lynx SQL Database
  2. 1 - XA Server version 4.10 or lower
  3. 2 - XA Server version 4.11 or higher