# \[BUG\] system.opc.setServerEnabled() returns an error of "unknown server" eventho it just disabled it! **URL:** \ **Category:** Ignition\ **Tags:** ignition80, scripting\ **Created:** [July 29, 2021, 8:37am UTC](https://forum.inductiveautomation.com/t/bug-system-opc-setserverenabled-returns-an-error-of-unknown-server-eventho-it-just-disabled-it/49344 "2021-07-29T08:37:15Z")\ **Posts on this page:** 1\ **Showing post:** 4
**Author:** ![victordcq](https://avatars.discourse-cdn.com/v4/letter/v/f6c823/32.png) [@victordcq](https://forum.inductiveautomation.com/u/victordcq)\ **Post date:** [August 11, 2021, 7:05am UTC](https://forum.inductiveautomation.com/t/bug-system-opc-setserverenabled-returns-an-error-of-unknown-server-eventho-it-just-disabled-it/49344/4 "2021-08-11T07:05:24Z")
> [@Nightly 8.1 Changelogs - 2021](https://forum.inductiveautomation.com/t/nightly-8-1-changelogs-2021/42410/134): > > Nightly Changelog: 8.1.10-b20210810 Data Model 2478: Copying and Pasting Tags in Tag Browser creates duplicate tags Copy and Pasting tags from Tag Browser will no longer create duplicates. Infrastructure 3838: Upgrade to 8.1.8 overwrites gateway.xml file reverting ports to default Fixed an issue where existing gateway ports will be overwritten on an upgrade. [See Technical Advisory](https://support.inductiveautomation.com/hc/en-us/articles/4406741737357-Critical-Port-Reset-Issue-in-8-1-8). 3378: Upgrade the bundled JRE to 11.0.12 Bundled Java runtime upgraded to 11.0.12. Security 2775: Allow A… pretty fast, ty^^ --- _[View the full topic](https://forum.inductiveautomation.com/t/bug-system-opc-setserverenabled-returns-an-error-of-unknown-server-eventho-it-just-disabled-it/49344)._