# TCP Connection in Ignition apparently not polling

**URL:** <https://forum.inductiveautomation.com/t/tcp-connection-in-ignition-apparently-not-polling/11708>\
**Category:** General Discussion\
**Created:** [May 23, 2016, 10:48pm UTC](https://forum.inductiveautomation.com/t/tcp-connection-in-ignition-apparently-not-polling/11708 "2016-05-23T22:48:48Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Steve\_Ihnen](https://avatars.discourse-cdn.com/v4/letter/s/779978/32.png) [@Steve\_Ihnen](https://forum.inductiveautomation.com/u/Steve_Ihnen)\
**Post date:** [May 23, 2016, 10:48pm UTC](https://forum.inductiveautomation.com/t/tcp-connection-in-ignition-apparently-not-polling/11708/1 "2016-05-23T22:48:48Z")

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I setup a TCP connection to a remote device in ignition. The remote device as a TCP server that is supposed to respond with information whenever a connection is requested.

Using QuickClient I can subscribe to the remote device and see that it works when a message is sent. Again, the TCP Server should respond just when connected, whether a message is sent or not.

But I have the QuickClient setup to poll every 1000 ms and it does not appear to be polling. When I look at the same tag in Ignition designer (where I think it should recognize new values coming in every 1000ms) it also shows only a static value.

The scan class for the tag is set to rescan every 1000 ms as well.

What am I doing wrong?

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<div class="post-metadata">

**Author:** ![Steve\_Ihnen](https://avatars.discourse-cdn.com/v4/letter/s/779978/32.png) [@Steve\_Ihnen](https://forum.inductiveautomation.com/u/Steve_Ihnen)\
**Post date:** [May 24, 2016, 5:13am UTC](https://forum.inductiveautomation.com/t/tcp-connection-in-ignition-apparently-not-polling/11708/2 "2016-05-24T05:13:56Z")

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Never mind, I discovered the problem. Since the TCP Connection in Ignition is listen-only, the server code on the remote side must be programmed to respond when a connection is received and not when a message is received.
