IssueWhen authenticating to Tableau Server via Kerberos, one of the following error messages might occur in Tableau Server:
Tableau Server could not authenticate you automatically.
Sign in using your Tableau Server credentials.
To address this problem, you can disable the second NIC, or use the following procedure to assign metrics to each NIC on the computer.
Note: Updating DNS or using local routing in the etc\hosts file to refer to the preferred IP address will not resolve this issue.
A metric is a way to indicate the “cost” of using a network interface. The higher the metric, the more expensive it is to use. By default in Windows, Automatic Metric is enabled, but you can manually assign metrics to each network interface to indicate which network interface is preferred. The lower a metric value the more preferred the interface is.
To manually configure metrics for a network interface:
In Control Panel, click Network and Internet.
Click Network and Sharing Center.
Click Change adapter settings.
Right-click on a network interface and click Properties.
Select Internet Protocol Version 4(TCP/IPv4) and click Properties.
On the General tab, click Advanced.
On the IP Settings tab, clear Automatic metric and enter the metric that you want in the Interface metric box.
The metric indicates the cost of using the interface, so give your preferred interface a lower value than the other interface(s) on the computer.
Repeat the process for any other interfaces, giving them metrics based on their preference. The interface that Tableau Server uses should be the preferred interface and have the lowest value metric. For example, give the preferred network interface a metric of 5 and the secondary interface a value of 10.
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For more information about Windows and using the metric feature for IP routes, see the following Microsoft documentation: