# Ignition OPC UA Server Redundancy Config **URL:** \ **Category:** Ignition\ **Created:** [September 24, 2024, 7:04pm UTC](https://forum.inductiveautomation.com/t/ignition-opc-ua-server-redundancy-config/96394 "2024-09-24T19:04:02Z")\ **Posts on this page:** 4\ **Page:** 1
**Author:** ![c.turmel](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/c.turmel/32/67745_2.png) [@c.turmel](https://forum.inductiveautomation.com/u/c.turmel)\ **Post date:** [September 24, 2024, 7:04pm UTC](https://forum.inductiveautomation.com/t/ignition-opc-ua-server-redundancy-config/96394/1 "2024-09-24T19:04:02Z")
Hi all, I have configured an OPC UA server on my Primary ignition gateway wich followed automatically on the redondant server. I'm trying however to configure the non-transparent redundancy using the information I found here: > **[Ignition's OPC UA Server | Ignition User Manual](https://www.docs.inductiveautomation.com/docs/8.1/ignition-modules/opc-ua/ignitions-opc-ua-server)** > > Ignition's OPC UA server, provided by the OPC UA module, allows an ignition installation to utilize Ignition's various device driver modules. In addition, with the module installed, OPC UA clients can connect to Ignition's UA server, exposing any... In the section OPC UA Client redundancy, I'm unable to obtain a different URI for my secondary gateway to configure the failover part in the OPC UA server settings. Also, using UA Expert I'm unable to obtain data from the secondary gateway even when I force failover the gateway. Like if it's not configured on the secondary. Any help? ---
**Author:** ![Kevin.Herron](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/kevin.herron/32/7259_2.png) [@Kevin.Herron](https://forum.inductiveautomation.com/u/Kevin.Herron)\ **Post date:** [September 24, 2024, 8:10pm UTC](https://forum.inductiveautomation.com/t/ignition-opc-ua-server-redundancy-config/96394/2 "2024-09-24T20:10:04Z")
Non-transparent redundancy means that a client has to understand there are two or more servers and manage connecting to another server in the server set when the "primary" (the one with the highest ServiceLevel) goes down. Ignition's OPC UA client does not support this and neither does UaExpert AFAIK. ---
**Author:** ![c.turmel](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/c.turmel/32/67745_2.png) [@c.turmel](https://forum.inductiveautomation.com/u/c.turmel)\ **Post date:** [September 26, 2024, 12:26pm UTC](https://forum.inductiveautomation.com/t/ignition-opc-ua-server-redundancy-config/96394/3 "2024-09-26T12:26:05Z")
Yes I uderstand that. However my secondary ignition server seems to not ack like a OPC UA server in any case. I try to poll it using a tool when it's active and nothing seems to work. I follow the instructions in the link I provided and I'm unable to obtain a different URI on both servers (they are the same). I think I'm missing a step in order for the secondary server to work as a OPC UA server. ---
**Author:** ![Kevin.Herron](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/kevin.herron/32/7259_2.png) [@Kevin.Herron](https://forum.inductiveautomation.com/u/Kevin.Herron)\ **Post date:** [September 26, 2024, 2:00pm UTC](https://forum.inductiveautomation.com/t/ignition-opc-ua-server-redundancy-config/96394/4 "2024-09-26T14:00:59Z")
There isn't really any extra configuration necessary. These extra steps for the URIs are only because there was one client out there that didn't work unless there were URIs available to read and ServiceLevel was operable. The whole URI thing is broken anyway and the configuration on the backup gets overwritten the first time a full sync happens. Give support a call and let them take a look.