# Device: "Disconnected - Browse Pending" weird lockup **URL:** \ **Category:** Ignition\ **Created:** [May 12, 2014, 2:52am UTC](https://forum.inductiveautomation.com/t/device-disconnected-browse-pending-weird-lockup/8435 "2014-05-12T02:52:28Z")\ **Posts on this page:** 4\ **Page:** 1
**Author:** ![matkent](https://avatars.discourse-cdn.com/v4/letter/m/34f0e0/32.png) [@matkent](https://forum.inductiveautomation.com/u/matkent)\ **Post date:** [May 12, 2014, 2:52am UTC](https://forum.inductiveautomation.com/t/device-disconnected-browse-pending-weird-lockup/8435/1 "2014-05-12T02:52:28Z")
Hello gurus, Ignition version: 7.6.6 OS: Ubuntu 12.4 LTS This morning one of my devices a ControlLogix PLC stopped updating its tags. I first noticed this in the designer as the tags had the red exclamation mark next to them. When viewing tag diagnostics it had a “Config Error”. I then logged into the server webpage and checked the status of the device under “OPC UA” to which the message for that device was “Disconnected - Browse Pending”. I then went to the configure tab entered the “Devices” page under “OPC-UA” and tried the “Refresh Browse” This did not fix the issue. I eventually went to modules under the configure tab and restarted the OPC-UA module. This fixed the problem. I then checked the time that the tags stopped reading and it coincided with some PLC code edits I did around that time, nothing out of the ordinary. I then looked at the diagnostics log and found thousands of logs with the same time stamp: “(I) 6:38:57 AM ControlLogixDriver[SR1] [SR1] Starting browse again because edit number change was detected during last browse.” And the errors preceding the thousands of errors above: (I) 6:38:57 AM ControlLogixDriver[SR1] [SR1] Starting browse again because edit number change was detected during last browse. [WARN] 6:38:57 AM ControlLogixDriver[SR1] [SR1] Browse unsuccessfully. [WARN] 6:38:57 AM ABControlLogixBrowseRequest [SR1] Browse request failed because fail type is other than TIMEOUT, type = DISCONNECTED. (I) 6:38:57 AM ABControlLogixBrowseRequest [SR1] Browse request failed because fail type is other than TIMEOUT, type = DISCONNECTED. [WARN] 6:38:57 AM ABControlLogixTransportPool [SR1] Reseting CIP connection for transaction ID of 17381 [WARN] 6:38:57 AM ABControlLogixTransportPool [SR1] Reseting CIP connection for transaction ID of 17380 [WARN] 6:38:57 AM TimeoutDaemon [ABControlLogixProcessorStatusRequest] request with key “17380” failed due to timeout. (I) 6:38:49 AM ControlLogixDriver[SR1] [SR1] Processor edit number changed from 41217 to 41729. (I) 6:38:48 AM ControlLogixDriver[SR1] [SR1] Processor edit number changed from 40193 to 41217. (I) 6:38:01 AM ControlLogixDriver[SR1] [SR1] Updating tagManager with edit version 40193 with 5845 tags (I) 6:38:01 AM ABControlLogixBrowseRequest [SR1] Creating browse request using LOW priority. (I) 6:38:01 AM ControlLogixDriver[SR1] [SR1] Starting browse again because edit number change was detected during last browse. Any idea why this might happen? I must of made 50-100 PLC edits since ignition went in and this is the first time I’ve seen this. regards Mat Kent. ---
**Author:** ![Javachon](https://avatars.discourse-cdn.com/v4/letter/j/ac8455/32.png) [@Javachon](https://forum.inductiveautomation.com/u/Javachon)\ **Post date:** [May 12, 2014, 1:43pm UTC](https://forum.inductiveautomation.com/t/device-disconnected-browse-pending-weird-lockup/8435/2 "2014-05-12T13:43:07Z")
We recently observed the same bug, with a ControlLogix too, where after code edit in the PLC the connection status in Ignition (version 7.6.6) stays “Disconnected - Browse Pending”. It may be a coincidence but we never observed this bug with previous versions of Ignition. ---
**Author:** ![Curlyandshemp](https://avatars.discourse-cdn.com/v4/letter/c/bcef8e/32.png) [@Curlyandshemp](https://forum.inductiveautomation.com/u/Curlyandshemp)\ **Post date:** [May 12, 2014, 2:15pm UTC](https://forum.inductiveautomation.com/t/device-disconnected-browse-pending-weird-lockup/8435/3 "2014-05-12T14:15:18Z")
[quote=“Javachon”]We recently observed the same bug, with a ControlLogix too, where after code edit in the PLC the connection status in Ignition (version 7.6.6) stays “Disconnected - Browse Pending”. It may be a coincidence but we never observed this bug with previous versions of Ignition.[/quote] This is why it is best to disable the automatic browsing in the device configuration. Then only manually refresh after adding , deleting or modifying tags. ---
**Author:** ![anna](https://avatars.discourse-cdn.com/v4/letter/a/779978/32.png) [@anna](https://forum.inductiveautomation.com/u/anna)\ **Post date:** [June 2, 2014, 4:39pm UTC](https://forum.inductiveautomation.com/t/device-disconnected-browse-pending-weird-lockup/8435/4 "2014-06-02T16:39:29Z")
matkent - this can happen when edits are constantly made / downloaded to the PLC; the driver will rebrowse when it detects changes. Automatic Browse should be disabled if / for the time you are making multiple repeated edits to the PLC program; Javachon could you describe in greater detail exactly what you observed and under what circumstances?