# Problem maintaining connection to real controller

**URL:** <https://tech-community.robotics.abb.com/t/problem-maintaining-connection-to-real-controller/5713>\
**Category:** RobotStudio\
**Created:** [September 23, 2013, 8:09am UTC](https://tech-community.robotics.abb.com/t/problem-maintaining-connection-to-real-controller/5713 "2013-09-23T08:09:41Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![kldevin](https://avatars.discourse-cdn.com/v4/letter/k/8dc957/32.png) [@kldevin](https://tech-community.robotics.abb.com/u/kldevin)\
**Post date:** [September 23, 2013, 8:09am UTC](https://tech-community.robotics.abb.com/t/problem-maintaining-connection-to-real-controller/5713/1 "2013-09-23T08:09:41Z")

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I am using RobotStudio version 5.15.02 to connect to IRC5 controllers and I am having trouble maintaining my connection. By that I mean edits made on the flexpendant sometimes do not appear on the RobotStudio screen and vice-versa. To resolve the problem I need to delete the controller from my controller list and add the controller again. This generally works, but I often lose many edits in the process. I have seen this issue on many of our robots and all are running Robotware 5.15.02. Is this a known problem? Any ideas?