# OPC COM Subscription error

**URL:** <https://forum.inductiveautomation.com/t/opc-com-subscription-error/37967>\
**Category:** Ignition\
**Tags:** ignition80\
**Created:** [August 21, 2020, 3:12am UTC](https://forum.inductiveautomation.com/t/opc-com-subscription-error/37967 "2020-08-21T03:12:01Z")\
**Posts on this page:** 4\
**Page:** 1

<div class="post-metadata">

**Author:** ![guganathan.r](https://avatars.discourse-cdn.com/v4/letter/g/8dc957/32.png) [@guganathan.r](https://forum.inductiveautomation.com/u/guganathan.r)\
**Post date:** [August 21, 2020, 3:12am UTC](https://forum.inductiveautomation.com/t/opc-com-subscription-error/37967/1 "2020-08-21T03:12:01Z")

</div>

Facing this error frequently now.  
And OPC Com gets disconnected very frequent (probably every couple of days) in last 2 weeks, not sure after my upgrade to 8.0.15.  
OPC data freezes with last timestamp value around 10 hours ago without showing any connection issue.

Any advise?

 ![image](https://us1.discourse-cdn.com/inductiveautomation/original/3X/f/f/ff68f314831547baa904a6b7563aeb276851aa05.png)

---

<div class="post-metadata">

**Author:** ![guganathan.r](https://avatars.discourse-cdn.com/v4/letter/g/8dc957/32.png) [@guganathan.r](https://forum.inductiveautomation.com/u/guganathan.r)\
**Post date:** [August 28, 2020, 2:30pm UTC](https://forum.inductiveautomation.com/t/opc-com-subscription-error/37967/2 "2020-08-28T14:30:45Z")

</div>

it looks like OPC com module bug. can anyone advise?

---

<div class="post-metadata">

**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 28, 2020, 2:52pm UTC](https://forum.inductiveautomation.com/t/opc-com-subscription-error/37967/3 "2020-08-28T14:52:40Z")

</div>

The log entries shown do not appear to be related to the OPC COM module. You might want to contact support to take a closer look.

---

<div class="post-metadata">

**Author:** ![guganathan.r](https://avatars.discourse-cdn.com/v4/letter/g/8dc957/32.png) [@guganathan.r](https://forum.inductiveautomation.com/u/guganathan.r)\
**Post date:** [August 29, 2020, 8:27am UTC](https://forum.inductiveautomation.com/t/opc-com-subscription-error/37967/4 "2020-08-29T08:27:49Z")

</div>

Thanks for response @pturmel  
Will contact support 👍