# OPC UA connection faulted: Bad\_ToManySessions

**URL:** <https://forum.inductiveautomation.com/t/opc-ua-connection-faulted-bad-tomanysessions/83170>\
**Category:** Ignition\
**Created:** [December 14, 2023, 9:27pm UTC](https://forum.inductiveautomation.com/t/opc-ua-connection-faulted-bad-tomanysessions/83170 "2023-12-14T21:27:36Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![Chad\_Putnam](https://avatars.discourse-cdn.com/v4/letter/c/9fc29f/32.png) [@Chad\_Putnam](https://forum.inductiveautomation.com/u/Chad_Putnam)\
**Post date:** [December 14, 2023, 9:27pm UTC](https://forum.inductiveautomation.com/t/opc-ua-connection-faulted-bad-tomanysessions/83170/1 "2023-12-14T21:27:36Z")

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Afternoon folks,  
I am hoping to get some help with a strange connection issue we are having. Prior to Thanksgiving everything was working just fine. We had a planned shutdown period where power was cut to our server room for some maintenance. Afterwards, everything came back online except a single connection to a GE RX3i PLC. We are getting a "Faulted" status under OPC Connections that says "status=Bad\_TooManySessions, description=The server has reached its maximum number of sessions."

I am not sure if "Server" is referring to the PLC, or if that is coming from Ignition. Has anyone had that issue before?

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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:** [December 14, 2023, 9:29pm UTC](https://forum.inductiveautomation.com/t/opc-ua-connection-faulted-bad-tomanysessions/83170/2 "2023-12-14T21:29:56Z")

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It's coming from the OPC UA server in the PLC; it's telling you there are too many sessions for some reason.

You may have other clients connected, or you may have accumulated sessions somehow... if there are diagnostics on that server might be able to figure out what the sessions are.

Otherwise / either way you probably just need to restart it.

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**Author:** ![Chad\_Putnam](https://avatars.discourse-cdn.com/v4/letter/c/9fc29f/32.png) [@Chad\_Putnam](https://forum.inductiveautomation.com/u/Chad_Putnam)\
**Post date:** [December 14, 2023, 9:31pm UTC](https://forum.inductiveautomation.com/t/opc-ua-connection-faulted-bad-tomanysessions/83170/3 "2023-12-14T21:31:15Z")

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Thanks Kevin. I will reach out the mechatronics folks and see if they can restart it.