# Bad\_NotConnected Error v7.7.5 -\> 7.5.5

**URL:** <https://forum.inductiveautomation.com/t/bad-notconnected-error-v7-7-5-7-5-5/10370>\
**Category:** Ignition\
**Created:** [August 19, 2015, 7:25pm UTC](https://forum.inductiveautomation.com/t/bad-notconnected-error-v7-7-5-7-5-5/10370 "2015-08-19T19:25:18Z")\
**Posts on this page:** 6\
**Page:** 1

<div class="post-metadata">

**Author:** ![JordanCClark](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/jordancclark/32/83362_2.png) [@JordanCClark](https://forum.inductiveautomation.com/u/JordanCClark)\
**Post date:** [August 19, 2015, 7:25pm UTC](https://forum.inductiveautomation.com/t/bad-notconnected-error-v7-7-5-7-5-5/10370/1 "2015-08-19T19:25:18Z")

</div>

I may be having a senior moment here, but I’m sure having issues connecting my 7.7.5 install to a 7.5.5 OPC server. Here’s what I have so far. Any ideas are appreciated. And, if you stop by Hudson and fix for me, I’ll even buy lunch! 😆

```auto
com.inductiveautomation.opcua.UAException: Bad_NotConnected
com.inductiveautomation.xopc.client.stack.TCPClientChannel.stopIOAndShutdown(TCPClientChannel.java:303)
com.inductiveautomation.xopc.client.stack.TCPClientChannel.notifyChannelError(TCPClientChannel.java:684)
com.inductiveautomation.xopc.common.stack.UAChannel$1.deliver(UAChannel.java:790)
com.inductiveautomation.xopc.common.stack.UAChannel$DeliverToDelegate.run(UAChannel.java:1599)
com.inductiveautomation.xopc.client.stack.SerialExecutionQueue$RunnableExecutor.execute(SerialExecutionQueue.java:100)
com.inductiveautomation.xopc.client.stack.SerialExecutionQueue$RunnableExecutor.execute(SerialExecutionQueue.java:97)
com.inductiveautomation.xopc.client.stack.SerialExecutionQueue$PollAndExecute.run(SerialExecutionQueue.java:75)
java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
java.util.concurrent.FutureTask.run(FutureTask.java:266)
java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)java.lang.Thread.run(Thread.java:745)
```

The remote OPC server is running 7.5.5 on Win7 (an old Panel Edition install):

 ![](https://us1.discourse-cdn.com/inductiveautomation/original/2X/4/4ec5a7f2c57ba95477104e16ee11639842c27450.png)  

Primary Ignition Server is v7.7.5 on Ubuntu 14.04:

 ![](https://us1.discourse-cdn.com/inductiveautomation/original/2X/c/c727f96cdc678aa25cd2965e1ccc1410e60f72a7.png)

---

<div class="post-metadata">

**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:** [August 19, 2015, 7:33pm UTC](https://forum.inductiveautomation.com/t/bad-notconnected-error-v7-7-5-7-5-5/10370/2 "2015-08-19T19:33:50Z")

</div>

Turn ConnectionUtil logger onto trace (on the 7.7.5 machine) and see if there’s any useful messages after that.

---

<div class="post-metadata">

**Author:** ![JordanCClark](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/jordancclark/32/83362_2.png) [@JordanCClark](https://forum.inductiveautomation.com/u/JordanCClark)\
**Post date:** [August 19, 2015, 8:08pm UTC](https://forum.inductiveautomation.com/t/bad-notconnected-error-v7-7-5-7-5-5/10370/3 "2015-08-19T20:08:33Z")

</div>

Here’s a trace. Also set TCPClientChannel to Trace as well, if it helps.  
[logs(4).bin.gz](https://us1.discourse-cdn.com/inductiveautomation/original/2X/b/b1bb1b5b3a6d83ece1beb4d041fae1cad78e4acf.gz) (449 KB)

 ![](https://us1.discourse-cdn.com/inductiveautomation/original/2X/8/8ef34c703556e89c71ac96272d81a1a501fbc0a8.png)

---

<div class="post-metadata">

**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:** [August 19, 2015, 8:35pm UTC](https://forum.inductiveautomation.com/t/bad-notconnected-error-v7-7-5-7-5-5/10370/4 "2015-08-19T20:35:39Z")

</div>

Fix the time on the server you’re connecting to (or the one you’re connecting from).

---

<div class="post-metadata">

**Author:** ![pdibenedetto](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/pdibenedetto/32/6364_2.png) [@pdibenedetto](https://forum.inductiveautomation.com/u/pdibenedetto)\
**Post date:** [August 19, 2015, 8:38pm UTC](https://forum.inductiveautomation.com/t/bad-notconnected-error-v7-7-5-7-5-5/10370/5 "2015-08-19T20:38:55Z")

</div>

The system datetimes on both servers are updated to the actual time?

EDIT: Sorry. Posting at the same time as Kevin.

---

<div class="post-metadata">

**Author:** ![JordanCClark](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/jordancclark/32/83362_2.png) [@JordanCClark](https://forum.inductiveautomation.com/u/JordanCClark)\
**Post date:** [August 19, 2015, 8:53pm UTC](https://forum.inductiveautomation.com/t/bad-notconnected-error-v7-7-5-7-5-5/10370/6 "2015-08-19T20:53:40Z")

</div>

😊 See? Senior moment, I tell you! 😆

Something I’ve noticed lately, is that none of the “builtin” time server settings on Win7 seem to work anymore. Setting to one of the [ntp.org](http://ntp.org) servers works.

Thanks, guys!