# Data Syncing Error

**URL:** <https://forum.odk-x.org/t/data-syncing-error/740>\
**Category:** Support\
**Created:** [June 9, 2020, 5:28pm UTC](https://forum.odk-x.org/t/data-syncing-error/740 "2020-06-09T17:28:42Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![cmuchuchuti](https://odkx.b-cdn.net/user_avatar/forum.odk-x.org/cmuchuchuti/32/356_2.png) [@cmuchuchuti](https://forum.odk-x.org/u/cmuchuchuti)\
**Post date:** [June 9, 2020, 5:28pm UTC](https://forum.odk-x.org/t/data-syncing-error/740/1 "2020-06-09T17:28:42Z")

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I am using ODK Aggregate 1.4.15

My tablets are failing to sync completely. After syncing quite some data, almost towards the end, it shows this error:

**Communication Error Occurred**  
**Network Error**  
Please verify your device browser can access your server.  
The server is up and this is happening from tablets in different networks so I don’t think its really a network issue.

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**Author:** ![elmps2018](https://odkx.b-cdn.net/user_avatar/forum.odk-x.org/elmps2018/32/105_2.png) [@elmps2018](https://forum.odk-x.org/u/elmps2018)\
**Post date:** [June 9, 2020, 5:43pm UTC](https://forum.odk-x.org/t/data-syncing-error/740/2 "2020-06-09T17:43:02Z")

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If you can check and share the logs, that may explain what is going on. Here’s where you can find them:  
[https://docs.odk-x.org/app-designer-directories/?highlight=log#the-app-output-folder](https://docs.odk-x.org/app-designer-directories/?highlight=log#the-app-output-folder)

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**Author:** ![aortegon](https://odkx.b-cdn.net/user_avatar/forum.odk-x.org/aortegon/32/299_2.png) [@aortegon](https://forum.odk-x.org/u/aortegon)\
**Post date:** [November 27, 2020, 6:52pm UTC](https://forum.odk-x.org/t/data-syncing-error/740/3 "2020-11-27T18:52:18Z")

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Hi all!  
Now I have exactly the same problem as @cmuchuchuti.  
When I try to connect ODK-X Survey with [https://survey-demo.odk-x.org](https://survey-demo.odk-x.org), “demo\_user1”, “password”, the only answer I obtain is  
**Communication Error Occurred**  
**Network Error**  
Please verify your device browser can access your server.

The server is up and this is happening from tablets in different networks so I don’t think its really a network issue".

 ![image](https://odkx.b-cdn.net/uploads/default/original/1X/9fa7895e07f1c54b9f889877d2261ebe6c751d00.png)

I must to explain that I have no problem when I do connect with the ODK-X Sync Endpoint Server at ITC, that is, [https://odkx.climarisk.itccanarias.org](https://odkx.climarisk.itccanarias.org), “aortegon”, “mypassword”. In this case, the connection ocurrs, and the synchronisation also ocurrs with no problem.  
I also connect with no problem with the odk-x tables server, that is [https://opendatakit-tablesdemo.appspot.com/](https://opendatakit-tablesdemo.appspot.com/), with anonymous and blank. I access the Tables demo app.

Following the instructions by @elmps2018 , I attach a copy of a log file, renamed to \*.txt for security reasons. See finals lines, number 8584 and after.

[2020-11-25\_08.txt](https://forum.odk-x.org/uploads/short-url/n9Mwd2LOvB2hFRzv2awy0NcY2aJ.txt) (986.6 KB)

Thanks a lot in advance!!  
@aortegon

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**Author:** ![linl33](https://odkx.b-cdn.net/letter_avatar_proxy/v4/letter/l/b487fb/32.png) [@linl33](https://forum.odk-x.org/u/linl33)\
**Post date:** [November 30, 2020, 1:49am UTC](https://forum.odk-x.org/t/data-syncing-error/740/4 "2020-11-30T01:49:19Z")

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Hi,

There was a problem with the server. Thanks for letting us know. It is back now.

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**Author:** ![aortegon](https://odkx.b-cdn.net/user_avatar/forum.odk-x.org/aortegon/32/299_2.png) [@aortegon](https://forum.odk-x.org/u/aortegon)\
**Post date:** [November 30, 2020, 3:05am UTC](https://forum.odk-x.org/t/data-syncing-error/740/5 "2020-11-30T03:05:08Z")

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Hi, @linl33, thanks a lot!!