# UDT Stops Updating **URL:** \ **Category:** Ignition\ **Tags:** ignition79\ **Created:** [January 12, 2022, 4:46pm UTC](https://forum.inductiveautomation.com/t/udt-stops-updating/54936 "2022-01-12T16:46:34Z")\ **Posts on this page:** 4\ **Page:** 1
**Author:** ![dturner](https://avatars.discourse-cdn.com/v4/letter/d/90ced4/32.png) [@dturner](https://forum.inductiveautomation.com/u/dturner)\ **Post date:** [January 12, 2022, 4:46pm UTC](https://forum.inductiveautomation.com/t/udt-stops-updating/54936/1 "2022-01-12T16:46:34Z")
I have a value that is part of a UDT that updates multiple times an hour during the day. It has been working for over a year until 12-27-2021. Java was downgraded on the server during this time. Shortly after, the UDT stopped working. Is there a relationship between Java and the UDT or is that pure coincidence? The Java downgrade was at 12-27-2021 10:18 am and the last update was on 12-27-2021 10:38 am. The quality showed good until I tried making changes to the UDT in hopes that it would update. I tried recreating a new data type instance but that did not work. Does anyone have any ideas on how to get this back working? The log is saying Error getting value from bytes=[0,0]. I am communicating to mostly Allen Bradley PLCs. ![First Time Yield Stale](https://us1.discourse-cdn.com/inductiveautomation/original/3X/b/0/b0875a3a8b67f699ef7d2b0231e7da20a9221eb6.jpeg) ---
**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 12, 2022, 5:08pm UTC](https://forum.inductiveautomation.com/t/udt-stops-updating/54936/2 "2022-01-12T17:08:07Z")
Hmmm. Kepware. The java downgrade might have been responsible. Is any other traffic from that connection working? ---
**Author:** ![dturner](https://avatars.discourse-cdn.com/v4/letter/d/90ced4/32.png) [@dturner](https://forum.inductiveautomation.com/u/dturner)\ **Post date:** [January 12, 2022, 6:16pm UTC](https://forum.inductiveautomation.com/t/udt-stops-updating/54936/3 "2022-01-12T18:16:49Z")
Yes, there are 6 tags that are not associated with the UDT that are working. Everything in that UDT is not working at the moment. ---
**Author:** ![dturner](https://avatars.discourse-cdn.com/v4/letter/d/90ced4/32.png) [@dturner](https://forum.inductiveautomation.com/u/dturner)\ **Post date:** [January 13, 2022, 3:46pm UTC](https://forum.inductiveautomation.com/t/udt-stops-updating/54936/4 "2022-01-13T15:46:35Z")
IT allowed me to reboot the server. everything seems to be working at the moment. I will watch it for a day and see if anything else occurs.