---
schema_version: "1"
id: 894b917a4d180e75cb9afab54d5dc3158dcac975f2c305da6fb9312f8463d0b2
title: Troubleshoot Trusted Authentication
collection: tableau
version: current
locale: en-gb
portal_url: https://docs.salesforce.com/tableau/current/en-gb/server-linux/trusted_auth_trouble.md
canonical_url: https://help.tableau.com/current/server-linux/en-gb/trusted_auth_trouble.htm
source_site: help.tableau.com
content_type: documentation
content_hash: cf6126b0c2ea77e827f5c21b76280a6e670dae94ee1993512a920c731c219a61
description: Troubleshoot common trusted authentication issues.
---
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# Troubleshoot Trusted Authentication

This section includes some common issues and errors you might encounter when you're configuring trusted authentication.

A common source for trusted authentication errors are misconfiguration with a proxy server or load balancer. If your Tableau Server operates behind a reverse proxy server or a load balancer, see [Configure Tableau Server to work with a reverse proxy server and/or load balancer](https://help.tableau.com/current/server-linux/en-gb/proxy.htm#Configur) and [Add a Load Balancer](https://help.tableau.com/current/server-linux/en-gb/distrib_lb.htm).

Trusted authentication information is written to `/var/opt/tableau/tableau_server/data/tabsvc/logs/vizqlserver/vizql-*.log`.

To increase the logging level from `info` to `debug`, run the following commands:

tsm configuration set -k vizqlserver.trustedticket.log\_level -v debug
tsm pending-changes apply

To test your trusted authentication deployment, see [Test Trusted Authentication](https://help.tableau.com/current/server-linux/en-gb/trusted_auth_testing.htm).

### See also

For more troubleshooting information for specific errors, see the following topics accessible from the **Other articles in this section** below:

Request for ticket by web server

- Ticket Value of -1 Returned from Tableau Server
- HTTP 401 - Not Authorised
- HTTP 404 - File Not Found
- Invalid User (SharePoint or C#)

**Viewer redeeming ticket**

- Attempting to Redeem the Ticket from the Wrong IP Address
- Cookie Restriction Error

Navigating between several embedded views

- An error occurred communicating with the server (403)

## Other articles in this section