# TopView to Ignition OPC UA connection issues **URL:** \ **Category:** Ignition\ **Tags:** ignition81, vision\ **Created:** [September 11, 2024, 1:32pm UTC](https://forum.inductiveautomation.com/t/topview-to-ignition-opc-ua-connection-issues/95849 "2024-09-11T13:32:27Z")\ **Posts on this page:** 6\ **Page:** 1
**Author:** ![Brian\_Cockrell](https://avatars.discourse-cdn.com/v4/letter/b/6f9a4e/32.png) [@Brian\_Cockrell](https://forum.inductiveautomation.com/u/Brian_Cockrell)\ **Post date:** [September 11, 2024, 1:32pm UTC](https://forum.inductiveautomation.com/t/topview-to-ignition-opc-ua-connection-issues/95849/1 "2024-09-11T13:32:27Z")
I am using TopView 6.37.1.0 and trying to connect to Ignitions UA server at opc.tcp://localhost:62541. Topview sees the server but shows connection was denied. I have tried multiple different ways to connect from anonymous being checked, to username and password, to using the default to certificate. Every which way i try gives me the same error. I have loaded the exele topview certificate into the ignition client trusted certs and server certs. I am really not sure what else to do and any help would be appreciated. ![17260613467503128552614162129129](https://us1.discourse-cdn.com/inductiveautomation/original/3X/f/1/f1689bcefcf2e7918c9e4bd874a02bf3940f61ea.jpeg) ![1726061371832693666910001435779](https://us1.discourse-cdn.com/inductiveautomation/original/3X/d/e/de856d98e5f7baf03b49f5dcbb030af9419b0a63.jpeg) ---
**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:** [September 11, 2024, 1:37pm UTC](https://forum.inductiveautomation.com/t/topview-to-ignition-opc-ua-connection-issues/95849/2 "2024-09-11T13:37:11Z")
Try using `opc.tcp://localhost:62541/discovery` as the endpoint URL instead. Also make sure you are using the latest version of KEPserver/TOPserver, as they only recently (claimed - have not tested) to fix the bug that prevented KSE from connecting to Ignition's server without allowing unsecured connections. ---
**Author:** ![Brian\_Cockrell](https://avatars.discourse-cdn.com/v4/letter/b/6f9a4e/32.png) [@Brian\_Cockrell](https://forum.inductiveautomation.com/u/Brian_Cockrell)\ **Post date:** [September 11, 2024, 1:39pm UTC](https://forum.inductiveautomation.com/t/topview-to-ignition-opc-ua-connection-issues/95849/3 "2024-09-11T13:39:05Z")
Its TopView from exele. I cant use the latest version from them because the latest version doesnt support modems. Discovery is how is found the address listed but i will make it the actual address. ---
**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:** [September 11, 2024, 1:43pm UTC](https://forum.inductiveautomation.com/t/topview-to-ignition-opc-ua-connection-issues/95849/4 "2024-09-11T13:43:04Z")
Ooh, oops, read that as TOPserver. You'll probably have to modify Ignition's OPC UA server settings and change the security policies to "None, Basic256Sha256". Make sure to restart the Ignition Gateway after changing that. ---
**Author:** ![Brian\_Cockrell](https://avatars.discourse-cdn.com/v4/letter/b/6f9a4e/32.png) [@Brian\_Cockrell](https://forum.inductiveautomation.com/u/Brian_Cockrell)\ **Post date:** [September 11, 2024, 1:43pm UTC](https://forum.inductiveautomation.com/t/topview-to-ignition-opc-ua-connection-issues/95849/5 "2024-09-11T13:43:43Z")
K i will try that ---
**Author:** ![Brian\_Cockrell](https://avatars.discourse-cdn.com/v4/letter/b/6f9a4e/32.png) [@Brian\_Cockrell](https://forum.inductiveautomation.com/u/Brian_Cockrell)\ **Post date:** [September 11, 2024, 1:45pm UTC](https://forum.inductiveautomation.com/t/topview-to-ignition-opc-ua-connection-issues/95849/6 "2024-09-11T13:45:18Z")
K that worked. Thank you