# OPC UA - Device Connections - 0/1 Connected **URL:** \ **Category:** Ignition\ **Tags:** ignition81\ **Created:** [June 25, 2025, 7:16pm UTC](https://forum.inductiveautomation.com/t/opc-ua-device-connections-0-1-connected/107796 "2025-06-25T19:16:39Z")\ **Posts on this page:** 4\ **Page:** 1
**Author:** ![dwb](https://avatars.discourse-cdn.com/v4/letter/d/9dc877/32.png) [@dwb](https://forum.inductiveautomation.com/u/dwb)\ **Post date:** [June 25, 2025, 7:16pm UTC](https://forum.inductiveautomation.com/t/opc-ua-device-connections-0-1-connected/107796/1 "2025-06-25T19:16:39Z")
Hi, Under OPC UA - Device Connections, I have one TCP Driver Connection that was working. But after restarting the PLC, it now says 0/1 Connected. However, I am able to ping the IP address. What could be the problem if it was working before? Thanks. ---
**Author:** ![Ryan\_Deardorff](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/ryan_deardorff/32/63815_2.png) [@Ryan\_Deardorff](https://forum.inductiveautomation.com/u/Ryan_Deardorff)\ **Post date:** [June 25, 2025, 7:36pm UTC](https://forum.inductiveautomation.com/t/opc-ua-device-connections-0-1-connected/107796/2 "2025-06-25T19:36:52Z")
Have you tried disabling and then re-enabling the device connection in Ignition? ---
**Author:** ![dwb](https://avatars.discourse-cdn.com/v4/letter/d/9dc877/32.png) [@dwb](https://forum.inductiveautomation.com/u/dwb)\ **Post date:** [June 25, 2025, 7:37pm UTC](https://forum.inductiveautomation.com/t/opc-ua-device-connections-0-1-connected/107796/3 "2025-06-25T19:37:49Z")
Hi, Yes, I have tried to do this. But still the same. ---
**Author:** ![dwb](https://avatars.discourse-cdn.com/v4/letter/d/9dc877/32.png) [@dwb](https://forum.inductiveautomation.com/u/dwb)\ **Post date:** [June 26, 2025, 11:41pm UTC](https://forum.inductiveautomation.com/t/opc-ua-device-connections-0-1-connected/107796/4 "2025-06-26T23:41:16Z")
I'm using port 9995, and everything seems to be ok. I don't know why I'm not connected.