# Sync warning: Unable to send updates to client **URL:** \ **Category:** Ignition\ **Tags:** ignition80, perspective\ **Created:** [December 27, 2021, 5:14pm UTC](https://forum.inductiveautomation.com/t/sync-warning-unable-to-send-updates-to-client/54461 "2021-12-27T17:14:02Z")\ **Posts on this page:** 20\ **Page:** 2
**Author:** ![avaughn](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/avaughn/32/38972_2.png) [@avaughn](https://forum.inductiveautomation.com/u/avaughn)\ **Post date:** [May 10, 2024, 11:13pm UTC](https://forum.inductiveautomation.com/t/sync-warning-unable-to-send-updates-to-client/54461/21 "2024-05-10T23:13:33Z")
If you hover over the Sync logger name on the left of the message, what’s the full name that shows in the tooltip? I think you might want to turn off the `perspective.ClientSession.Sync` logger. ---
**Author:** ![Douglas\_Lawrie](https://avatars.discourse-cdn.com/v4/letter/d/a87d85/32.png) [@Douglas\_Lawrie](https://forum.inductiveautomation.com/u/Douglas_Lawrie)\ **Post date:** [August 8, 2024, 7:11am UTC](https://forum.inductiveautomation.com/t/sync-warning-unable-to-send-updates-to-client/54461/22 "2024-08-08T07:11:59Z")
> [@nathan1](#): > > m Bumping this. Is this a bug? Some misconfiguration on a Perspective page? ---
**Author:** ![AaronAutomated](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/aaronautomated/32/46181_2.png) [@AaronAutomated](https://forum.inductiveautomation.com/u/AaronAutomated)\ **Post date:** [November 26, 2024, 5:01pm UTC](https://forum.inductiveautomation.com/t/sync-warning-unable-to-send-updates-to-client/54461/23 "2024-11-26T17:01:17Z")
Would also like to bump this for a better solution than disabling the logger or rebooting the gateway. ---
**Author:** ![avaughn](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/avaughn/32/38972_2.png) [@avaughn](https://forum.inductiveautomation.com/u/avaughn)\ **Post date:** [November 26, 2024, 6:40pm UTC](https://forum.inductiveautomation.com/t/sync-warning-unable-to-send-updates-to-client/54461/24 "2024-11-26T18:40:02Z")
At this stage the underlying issue has not been replicated. If anyone is consistently running into this issue, we would like to gather more information to hopefully help with replicating in order to get this fixed. Please reach out to [support](https://support.inductiveautomation.com/hc/en-us) to get a ticket opened up and reference IGN-8727. ---
**Author:** ![anthony\_ho](https://avatars.discourse-cdn.com/v4/letter/a/59ef9b/32.png) [@anthony\_ho](https://forum.inductiveautomation.com/u/anthony_ho)\ **Post date:** [December 31, 2024, 6:54pm UTC](https://forum.inductiveautomation.com/t/sync-warning-unable-to-send-updates-to-client/54461/25 "2024-12-31T18:54:52Z")
8.1.42 still same issue ---
**Author:** ![jlandwerlen](https://avatars.discourse-cdn.com/v4/letter/j/bc8723/32.png) [@jlandwerlen](https://forum.inductiveautomation.com/u/jlandwerlen)\ **Post date:** [January 1, 2025, 2:25am UTC](https://forum.inductiveautomation.com/t/sync-warning-unable-to-send-updates-to-client/54461/26 "2025-01-01T02:25:59Z")
Open a support ticket as requested by the response above. ---
**Author:** ![Alex\_Padilla](https://avatars.discourse-cdn.com/v4/letter/a/a88e57/32.png) [@Alex\_Padilla](https://forum.inductiveautomation.com/u/Alex_Padilla)\ **Post date:** [January 29, 2025, 6:19pm UTC](https://forum.inductiveautomation.com/t/sync-warning-unable-to-send-updates-to-client/54461/27 "2025-01-29T18:19:46Z")
By any chance, do you already have a way to solve this? It’s a very repetitive log, and I’m not sure if it affects performance ---
**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:** [January 29, 2025, 6:35pm UTC](https://forum.inductiveautomation.com/t/sync-warning-unable-to-send-updates-to-client/54461/28 "2025-01-29T18:35:55Z")
I was under the impression that this is unavoidable, at least once, when a user closes an extra tab of a client session. ---
**Author:** ![Jean-Maurice\_Dubois](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/jean-maurice_dubois/32/80996_2.png) [@Jean-Maurice\_Dubois](https://forum.inductiveautomation.com/u/Jean-Maurice_Dubois)\ **Post date:** [May 9, 2025, 7:04pm UTC](https://forum.inductiveautomation.com/t/sync-warning-unable-to-send-updates-to-client/54461/29 "2025-05-09T19:04:05Z")
Same issue on latest version 8.1.48 ![image](https://us1.discourse-cdn.com/inductiveautomation/original/3X/9/9/99e98c943d1e3873bc5c4e4ec04765544f4b88e2.png) ---
**Author:** ![patrixmith](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/patrixmith/32/75926_2.png) [@patrixmith](https://forum.inductiveautomation.com/u/patrixmith)\ **Post date:** [May 11, 2025, 3:19pm UTC](https://forum.inductiveautomation.com/t/sync-warning-unable-to-send-updates-to-client/54461/30 "2025-05-11T15:19:57Z")
We still see this issue all the way up to 8.1.48 as well. One of our customers has 12 gateways and they are all identical configurarion and they sync all views and UDTs with EAM, but the issue only happens on one gateway and not on the others. We just turn it off in the logback.xml when we see it so that the disable persists service restarts. @avaughn , let me know if you want any gateway backups from their gateways. ---
**Author:** ![avaughn](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/avaughn/32/38972_2.png) [@avaughn](https://forum.inductiveautomation.com/u/avaughn)\ **Post date:** [May 12, 2025, 4:08pm UTC](https://forum.inductiveautomation.com/t/sync-warning-unable-to-send-updates-to-client/54461/31 "2025-05-12T16:08:14Z")
We were able to get resources from others reaching out through support, so I don't believe we need anything further at the moment. I'll reach back out if we end up needing anything additional though. ---
**Author:** ![patrixmith](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/patrixmith/32/75926_2.png) [@patrixmith](https://forum.inductiveautomation.com/u/patrixmith)\ **Post date:** [May 12, 2025, 4:08pm UTC](https://forum.inductiveautomation.com/t/sync-warning-unable-to-send-updates-to-client/54461/32 "2025-05-12T16:08:55Z")
Ok, we have it happening right now on a gateway if you care to look at it. ---
**Author:** ![Herman\_Lundberg](https://avatars.discourse-cdn.com/v4/letter/h/df705f/32.png) [@Herman\_Lundberg](https://forum.inductiveautomation.com/u/Herman_Lundberg)\ **Post date:** [June 2, 2025, 12:15pm UTC](https://forum.inductiveautomation.com/t/sync-warning-unable-to-send-updates-to-client/54461/33 "2025-06-02T12:15:58Z")
We have the same issue at the moment and we would like to avoid a gateway restart. I have tried some crude methods but to no avail. This does not work: Renaming the projcet, Disabling the project Deleteing the project ---
**Author:** ![Amitkumar\_Ravat1](https://avatars.discourse-cdn.com/v4/letter/a/b5a626/32.png) [@Amitkumar\_Ravat1](https://forum.inductiveautomation.com/u/Amitkumar_Ravat1)\ **Post date:** [June 25, 2025, 9:21am UTC](https://forum.inductiveautomation.com/t/sync-warning-unable-to-send-updates-to-client/54461/34 "2025-06-25T09:21:42Z")
same issue in 8.1.33 ---
**Author:** ![Kevin\_Garman](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/kevin_garman/32/48695_2.png) [@Kevin\_Garman](https://forum.inductiveautomation.com/u/Kevin_Garman)\ **Post date:** [February 3, 2026, 5:22pm UTC](https://forum.inductiveautomation.com/t/sync-warning-unable-to-send-updates-to-client/54461/35 "2026-02-03T17:22:58Z")
Any news on this? Happening on 8.1.50. Looking at the “magnifying glass,” the reference view is always different…no real indication of where the problem is, as far as I can tell. ---
**Author:** ![avaughn](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/avaughn/32/38972_2.png) [@avaughn](https://forum.inductiveautomation.com/u/avaughn)\ **Post date:** [February 3, 2026, 5:39pm UTC](https://forum.inductiveautomation.com/t/sync-warning-unable-to-send-updates-to-client/54461/36 "2026-02-03T17:39:37Z")
There is a fix in both 8.1.51 and 8.3.0 that addresses this. ![image](https://us1.discourse-cdn.com/inductiveautomation/original/3X/2/1/21a4e1c8be8ab53df784d68ac9412f0dba2ecee9.png) > [@Nightly 8.1 Changelogs - 2025](https://forum.inductiveautomation.com/t/nightly-8-1-changelogs-2025/100308/116): > > Nightly Changelog: 8.1.51-SNAPSHOT-b20251126 Comms Drivers IGN-14359: Editing BACnet devices can cause the DeviceManager to get locked up indefinitely Fixes an issue where BACnet devices do not shut down properly, causing the OPC UA Device Manager to hang. OPC IGN-14743: NullPointerException in TransportProfile.fromUri() when OPC UA server returns null transport profile URI Fixes an issue where Ignition's OPC UA client can't connect to OPC UA servers that do not properly specify the transpo… ---
**Author:** ![Kevin\_Garman](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/kevin_garman/32/48695_2.png) [@Kevin\_Garman](https://forum.inductiveautomation.com/u/Kevin_Garman)\ **Post date:** [February 3, 2026, 6:18pm UTC](https://forum.inductiveautomation.com/t/sync-warning-unable-to-send-updates-to-client/54461/37 "2026-02-03T18:18:09Z")
Sweet, I’ll give it a try, thanks! ---
**Author:** ![aszanto](https://avatars.discourse-cdn.com/v4/letter/a/779978/32.png) [@aszanto](https://forum.inductiveautomation.com/u/aszanto)\ **Post date:** [June 25, 2026, 2:04pm UTC](https://forum.inductiveautomation.com/t/sync-warning-unable-to-send-updates-to-client/54461/38 "2026-06-25T14:04:02Z")
Does upgrading to 8.1.50 solve this or only from .51 guaranteed? ---
**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:** [June 25, 2026, 2:05pm UTC](https://forum.inductiveautomation.com/t/sync-warning-unable-to-send-updates-to-client/54461/39 "2026-06-25T14:05:48Z")
Well there's one user report that it still happens in 8.1.50, and another post saying it was back-ported to _8.1.51_... so you can probably bet it's 8.1.51+ if it's the same issue. ---
**Author:** ![qiang\_chen](https://avatars.discourse-cdn.com/v4/letter/q/e274bd/32.png) [@qiang\_chen](https://forum.inductiveautomation.com/u/qiang_chen)\ **Post date:** [July 30, 2026, 1:17am UTC](https://forum.inductiveautomation.com/t/sync-warning-unable-to-send-updates-to-client/54461/40 "2026-07-30T01:17:03Z")
We're currently on Ignition 8.1.50 and seeing the same problem. For those who upgraded to a newer version, did the issue get resolved? [Previous page](https://forum.inductiveautomation.com/t/sync-warning-unable-to-send-updates-to-client/54461.md?page=1)