# Cannot see Ignition OPC-UA Server in designer **URL:** \ **Category:** Ignition\ **Created:** [April 17, 2018, 6:11pm UTC](https://forum.inductiveautomation.com/t/cannot-see-ignition-opc-ua-server-in-designer/17746 "2018-04-17T18:11:54Z")\ **Posts on this page:** 5\ **Page:** 1
**Author:** ![richard.d.white](https://avatars.discourse-cdn.com/v4/letter/r/b2d939/32.png) [@richard.d.white](https://forum.inductiveautomation.com/u/richard.d.white)\ **Post date:** [April 17, 2018, 6:11pm UTC](https://forum.inductiveautomation.com/t/cannot-see-ignition-opc-ua-server-in-designer/17746/1 "2018-04-17T18:11:54Z")
Hello - I would appreciate anyone’s advice here! I am trying to get our evaluation version of Ignition to connect to Modbus TCP via the built-in Ignition OPC-UA Server. I am able to connect to the controller successfully via OPC-UA SERVER-Devices, and I know the controller is accessible since I can view coils, etc. from a different scanner. When I go to designer to try to access the controller, my problem is I cannot see the Ignition OPC-UA Server in designer. Only an OPC-DA server I set up a while back is visible. ![](https://us1.discourse-cdn.com/inductiveautomation/original/2X/e/e5b7729d41778f452a786809d8203d1a130c8a92.png) I did try resetting the gateway, but this did not help. Is there something I’m missing here? Please advise if anyone has any ideas!! ---
**Author:** ![witman](https://avatars.discourse-cdn.com/v4/letter/w/d2c977/32.png) [@witman](https://forum.inductiveautomation.com/u/witman)\ **Post date:** [April 18, 2018, 6:42pm UTC](https://forum.inductiveautomation.com/t/cannot-see-ignition-opc-ua-server-in-designer/17746/2 "2018-04-18T18:42:18Z")
Is it possible you’ve disabled the built-in OPC-UA server on gateway web page under Configure -\> OPC Connections -\> Servers? You can enable/disable after tapping Edit button next to the server. ---
**Author:** ![richard.d.white](https://avatars.discourse-cdn.com/v4/letter/r/b2d939/32.png) [@richard.d.white](https://forum.inductiveautomation.com/u/richard.d.white)\ **Post date:** [April 18, 2018, 8:35pm UTC](https://forum.inductiveautomation.com/t/cannot-see-ignition-opc-ua-server-in-designer/17746/3 "2018-04-18T20:35:35Z")
Thank you for your reply! Actually I just figured it out… The problem was I didn’t understand that the Ignition OPC-UA server needs to also be defined as a server under OPC connections… Once I did that I was able to get things working great! BTW the documentation is very clear about how to set this up but finding the correct information was a little difficult. A lot of information is easily found on setting up Modbus connections, defining tag ranges, etc. but you have to dig a bit to get to the part which mentions tying the OPC-UA server to the OPC connections/server configuration. Mahalo for your help! ---
**Author:** ![Kevin.Herron](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/kevin.herron/32/7259_2.png) [@Kevin.Herron](https://forum.inductiveautomation.com/u/Kevin.Herron)\ **Post date:** [April 18, 2018, 8:42pm UTC](https://forum.inductiveautomation.com/t/cannot-see-ignition-opc-ua-server-in-designer/17746/4 "2018-04-18T20:42:03Z")
> [@richard.d.white](#): > > but you have to dig a bit to get to the part which mentions tying the OPC-UA server to the OPC connections/server configuration. Mahalo for your help! That could certainly be improved, but its absence means you deleted the connection to begin with. The gateway starts up with a "loopback" connection to the server already defined. ---
**Author:** ![richard.d.white](https://avatars.discourse-cdn.com/v4/letter/r/b2d939/32.png) [@richard.d.white](https://forum.inductiveautomation.com/u/richard.d.white)\ **Post date:** [April 18, 2018, 8:59pm UTC](https://forum.inductiveautomation.com/t/cannot-see-ignition-opc-ua-server-in-designer/17746/5 "2018-04-18T20:59:26Z")
Totally possible as I have been evaluating this SW for a while and may have deleted the connection early on before I understood more fully what I was doing. Again thanks to all in the community for their feedback!