# Too many sessions on Ignition OPC UA Server

**URL:** <https://forum.inductiveautomation.com/t/too-many-sessions-on-ignition-opc-ua-server/37399>\
**Category:** Ignition\
**Created:** [August 5, 2020, 1:10pm UTC](https://forum.inductiveautomation.com/t/too-many-sessions-on-ignition-opc-ua-server/37399 "2020-08-05T13:10:56Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![eoursel](https://avatars.discourse-cdn.com/v4/letter/e/f08c70/32.png) [@eoursel](https://forum.inductiveautomation.com/u/eoursel)\
**Post date:** [August 5, 2020, 1:10pm UTC](https://forum.inductiveautomation.com/t/too-many-sessions-on-ignition-opc-ua-server/37399/1 "2020-08-05T13:10:56Z")

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Hi

I am trying to connect to the Ignition OPC UA server (standard Gateway not edge) from a remote machine with an UA Client. I tried with UAExpert and i have a BadTooManySessions error on UaExpert Log.

Is there a configurable limit on the number on opened sessions on the Ignition OPC UA Server?

Ignition version 8.0.13

Regards

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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:** [August 5, 2020, 1:27pm UTC](https://forum.inductiveautomation.com/t/too-many-sessions-on-ignition-opc-ua-server/37399/2 "2020-08-05T13:27:05Z")

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It’s not configurable but it defaults to allowing 100 sessions… sounds like you might have bigger problems here.

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**Author:** ![eoursel](https://avatars.discourse-cdn.com/v4/letter/e/f08c70/32.png) [@eoursel](https://forum.inductiveautomation.com/u/eoursel)\
**Post date:** [August 5, 2020, 2:00pm UTC](https://forum.inductiveautomation.com/t/too-many-sessions-on-ignition-opc-ua-server/37399/3 "2020-08-05T14:00:40Z")

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I noticed that the authentication settings was wrong: I should use an User/Password but if i configure the session to Anonymous i have the TooManyOpenSessions message. So it is normal the session is not opened but the error message is wrong.

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**Author:** ![pturmel](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/pturmel/32/3295_2.png) [@pturmel](https://forum.inductiveautomation.com/u/pturmel)\
**Post date:** [August 5, 2020, 2:26pm UTC](https://forum.inductiveautomation.com/t/too-many-sessions-on-ignition-opc-ua-server/37399/4 "2020-08-05T14:26:19Z")

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> [@eoursel](#):
>
> i have the TooManyOpenSessions message

Sounds like what happens when a control system is exposed on a public internet address....

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**Author:** ![eoursel](https://avatars.discourse-cdn.com/v4/letter/e/f08c70/32.png) [@eoursel](https://forum.inductiveautomation.com/u/eoursel)\
**Post date:** [August 5, 2020, 2:47pm UTC](https://forum.inductiveautomation.com/t/too-many-sessions-on-ignition-opc-ua-server/37399/5 "2020-08-05T14:47:31Z")

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Who has said this server is exposed on a public address? No it’s not for sure.