# Losing connectivity to certain Tags

**URL:** <https://forum.inductiveautomation.com/t/losing-connectivity-to-certain-tags/7119>\
**Category:** General Discussion\
**Created:** [August 22, 2013, 3:55pm UTC](https://forum.inductiveautomation.com/t/losing-connectivity-to-certain-tags/7119 "2013-08-22T15:55:31Z")\
**Posts on this page:** 7\
**Page:** 1

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**Author:** ![HALW80](https://avatars.discourse-cdn.com/v4/letter/h/47e85d/32.png) [@HALW80](https://forum.inductiveautomation.com/u/HALW80)\
**Post date:** [August 22, 2013, 3:55pm UTC](https://forum.inductiveautomation.com/t/losing-connectivity-to-certain-tags/7119/1 "2013-08-22T15:55:31Z")

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We loss some tags ever now and then, they appear with a green question mark and disabling and re-enabling these tags repairs them.  
Any idea what might cause this ???

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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 22, 2013, 3:56pm UTC](https://forum.inductiveautomation.com/t/losing-connectivity-to-certain-tags/7119/2 "2013-08-22T15:56:55Z")

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Are you using Ignition 7.6.x?

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**Author:** ![HALW80](https://avatars.discourse-cdn.com/v4/letter/h/47e85d/32.png) [@HALW80](https://forum.inductiveautomation.com/u/HALW80)\
**Post date:** [August 22, 2013, 4:14pm UTC](https://forum.inductiveautomation.com/t/losing-connectivity-to-certain-tags/7119/3 "2013-08-22T16:14:57Z")

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Yes 7.6.2

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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 22, 2013, 4:16pm UTC](https://forum.inductiveautomation.com/t/losing-connectivity-to-certain-tags/7119/4 "2013-08-22T16:16:27Z")

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Alrighty. There’s a possible fix for this problem in the 7.6.3 release candidates. I’m also working on tracking down another possible cause, but haven’t confirmed anything so it’s not exactly available. Hopefully we can get it figured out soon as this seems to be a common occurrence for people running 7.6.x lately.

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<div class="post-metadata">

**Author:** ![HALW80](https://avatars.discourse-cdn.com/v4/letter/h/47e85d/32.png) [@HALW80](https://forum.inductiveautomation.com/u/HALW80)\
**Post date:** [August 22, 2013, 4:25pm UTC](https://forum.inductiveautomation.com/t/losing-connectivity-to-certain-tags/7119/5 "2013-08-22T16:25:16Z")

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Ok  
Hopefully It won’t take to long.

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**Author:** ![Duffanator](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/duffanator/32/3560_2.png) [@Duffanator](https://forum.inductiveautomation.com/u/Duffanator)\
**Post date:** [August 22, 2013, 5:40pm UTC](https://forum.inductiveautomation.com/t/losing-connectivity-to-certain-tags/7119/6 "2013-08-22T17:40:23Z")

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Hey Kevin,

I’ve noticed this happens when Ignition runs out of memory and starts throwing up the permgen memory error. I’ve had this happen a few times to me as well and that seemed to be the cause of it in my case. FYI.

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**Author:** ![stevetperry](https://avatars.discourse-cdn.com/v4/letter/s/a9adbd/32.png) [@stevetperry](https://forum.inductiveautomation.com/u/stevetperry)\
**Post date:** [September 4, 2013, 8:08pm UTC](https://forum.inductiveautomation.com/t/losing-connectivity-to-certain-tags/7119/7 "2013-09-04T20:08:25Z")

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FYI - Saw this behavior today on one of our Ignition systems running 7.6.2.  
Tag from OPC server persisted in the “green question mark” state until I disabled & enabled it.  
Another tag from the same OPC device seemed fine the entire time.