# Is it normal to have same URI for master and backup nodes?

**URL:** <https://forum.inductiveautomation.com/t/is-it-normal-to-have-same-uri-for-master-and-backup-nodes/101851>\
**Category:** Ignition\
**Tags:** redundancy\
**Created:** [February 4, 2025, 5:09pm UTC](https://forum.inductiveautomation.com/t/is-it-normal-to-have-same-uri-for-master-and-backup-nodes/101851 "2025-02-04T17:09:40Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![Geoffroy\_ARNOUD](https://avatars.discourse-cdn.com/v4/letter/g/7ba0ec/32.png) [@Geoffroy\_ARNOUD](https://forum.inductiveautomation.com/u/Geoffroy_ARNOUD)\
**Post date:** [February 4, 2025, 5:09pm UTC](https://forum.inductiveautomation.com/t/is-it-normal-to-have-same-uri-for-master-and-backup-nodes/101851/1 "2025-02-04T17:09:40Z")

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Hello,  
I am setting up a redundant pair of Ignition servers.  
Up to now I have succesfully setup redundancy, and I can do failover. My client is also able to switch to current active node.  
I am currently following [Ignition's OPC UA Server | Ignition User Manual](https://docs.inductiveautomation.com/docs/8.1/ignition-modules/opc-ua/ignitions-opc-ua-server#opc-ua-client-redundancy) and saw that server URI (ns=0;i=2254) are the same for master and backup. I was not expecting this from what I could read in the manual.  
I regenerated server certificates, download them and inspect them, the URI is still the same in the SAN field.

Can someone shade a bit of light of what is going on here. How critical is it to follow instructions in [Ignition's OPC UA Server | Ignition User Manual](https://docs.inductiveautomation.com/docs/8.1/ignition-modules/opc-ua/ignitions-opc-ua-server#opc-ua-client-redundancy)

Thanks

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**Author:** ![lhalverson](https://avatars.discourse-cdn.com/v4/letter/l/b5ac83/32.png) [@lhalverson](https://forum.inductiveautomation.com/u/lhalverson)\
**Post date:** [June 11, 2025, 4:27pm UTC](https://forum.inductiveautomation.com/t/is-it-normal-to-have-same-uri-for-master-and-backup-nodes/101851/2 "2025-06-11T16:27:48Z")

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In the process of setting up redundancy as well and ran into the same issue. Hopefully there's an answer soon.

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**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:** [June 11, 2025, 4:33pm UTC](https://forum.inductiveautomation.com/t/is-it-normal-to-have-same-uri-for-master-and-backup-nodes/101851/3 "2025-06-11T16:33:05Z")

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It’s “normal” in the sense that it is a known and unfixable bug for 8.1 ☹

This has been fixed for 8.3 though.