Last Modified Date: 20 Sep 2019
- Tableau Server
ResolutionTo resolve this issue, work with your IT team to make one of the following network topology changes:
- Lower the MTU on the Tableau Server machine so it automatically fragments packets that would have a total size greater than that of the MTU from the router.
- Increase the MTU on the router and any other routers that may be passed through when going from the Tableau Server to any of the DCs.
After one of the above changes has been made, the identity store for Tableau Server can also be refined to a specific DC hostname, so that the search itself is not needed, using the --hostname argument on the identity store connection parameters.
CauseThis issue is caused by a network, domain, or other environmental setting; specifically, the Maximum Transmission Unit ("MTU") sent from Tableau Server is too large for the router in the LDAP/AD domain.
Additional InformationUse this information from RedHat's knowledge base to identify the issue: How to check supported MTU value for destination system and/or intermediate network
From the Tableau Server machine, ip addr | grep mtu can be used to check the local MTU value.
Troubleshooting LDAP Authentication by netgate.com
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