# UR10e: Fault C262A17: Failed to communicate with Elbow joint

**URL:** <https://forum.universal-robots.com/t/ur10e-fault-c262a17-failed-to-communicate-with-elbow-joint/40835>\
**Category:** Robot Communication\
**Created:** [August 14, 2025, 12:57pm UTC](https://forum.universal-robots.com/t/ur10e-fault-c262a17-failed-to-communicate-with-elbow-joint/40835 "2025-08-14T12:57:59Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![pshahare](https://avatars.discourse-cdn.com/v4/letter/p/5f9b8f/32.png) [@pshahare](https://forum.universal-robots.com/u/pshahare)\
**Post date:** [August 14, 2025, 12:57pm UTC](https://forum.universal-robots.com/t/ur10e-fault-c262a17-failed-to-communicate-with-elbow-joint/40835/1 "2025-08-14T12:57:59Z")

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UR10e: Fault C262A17: Failed to communicate with Elbow joint.

Getting this failure when I updated UR10e from 5.17 to 5.22.0  
([Universal Robots - Robot Image - UR-Series & e-Series - SW 5.22.0](https://www.universal-robots.com/download/software-ur-series/image/robot-image-ur-series-e-series-sw-5220/#))

What would have caused this ? And how do I resolve ?

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**Author:** ![HungNguyen.HopLong](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.universal-robots.com/hungnguyen.hoplong/32/6617_2.png) [@HungNguyen.HopLong](https://forum.universal-robots.com/u/HungNguyen.HopLong)\
**Post date:** [August 19, 2025, 10:13am UTC](https://forum.universal-robots.com/t/ur10e-fault-c262a17-failed-to-communicate-with-elbow-joint/40835/2 "2025-08-19T10:13:12Z")

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Hello.

Have you tried these methods: Try the following actions to see which resolves the issue: (A) Make sure the cable between Control Box and Robot Arm is correctly connected and it has no damage, (B) Check for loose connections, (C) Conduct a complete rebooting sequence.

If it still error, try “downgrade” to old version.