# Communication between UR + mir +PC

**URL:** <https://forum.universal-robots.com/t/communication-between-ur-mir-pc/16145>\
**Category:** Robot Communication\
**Created:** [August 27, 2021, 5:44pm UTC](https://forum.universal-robots.com/t/communication-between-ur-mir-pc/16145 "2021-08-27T17:44:39Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![raied.debibi](https://avatars.discourse-cdn.com/v4/letter/r/6de8d8/32.png) [@raied.debibi](https://forum.universal-robots.com/u/raied.debibi)\
**Post date:** [August 27, 2021, 5:44pm UTC](https://forum.universal-robots.com/t/communication-between-ur-mir-pc/16145/1 "2021-08-27T17:44:39Z")

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Hello,

I did a communication with UR 10 e+mir200 MODBUS  
After I did a communication with UR ( the client) +PC (the server) with TCP/ip SOCKET

When I test them separately, the communication is function

But when I make a switch ( a modem) and I made the three devices to communicate I can’t open socket between robot UR and PC (the PC lost communication with PC) but the communication between UR and Mir is still function.

The instructions are: The robot mir move to frist position after it is activate UR program and in the UR program the robot should communicate with PC ( socket communicate) ( but when the mir is connected, the robot can’t communicate with the PC)

Are there any help to resolve this problem.

Thank you !