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How to troubleshoot syncing issues

Written by Nikolett Takacs

Updated at March 4th, 2026

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Table of Contents

Overview Instructions No active internet connection/slow internet connection The online platform C-sar is temporarily unavailable There is an excessive number of Profiles A local network environment is suppressing the connection A corrupted roast file is blocking the outbox

Overview

This article explains the troubleshooting steps for the most common issues that cause syncing problems with Roasting Intelligence. A syncing issue is a connection error between Roasting Intelligence and the online platform C-sar that will prevent data from syncing.

You are facing a syncing issue if you see one of the following error messages within the Roasting Intelligence:

  • Error syncing data: After pressing the Synchronize button in Roasting Intelligence.
  • To update your machine status, first attempt the switch within Roasting Intelligence Preferences; you can only transition to a machine that has an active internet connection.

Instructions

Please complete these troubleshooting steps to help us isolate the cause of the synchronization error. 
Review each step, confirming as you verify them, and proceed to the next one accordingly:

  1. No active internet connection/slow internet connection
  2. The online platform C-sar is temporarily unavailable
  3. There is an excessive number of active Profiles
  4. A local network environment is suppressing the connection
  5. A corrupted roast file is blocking the outbox

 

No active internet connection/slow internet connection

You need to verify the stability of your internet connection: 

  1. Test your connectivity by visiting any webpage. If it’s unresponsive or sluggish, your sync issues are likely due to your network performance,
  2. Check if you are connected to the network that you usually use.
  3. If you are using a laptop, check if the device is in flight mode.
  4. Restart the router to reset the internet connection. 
  5. Switch your connection type from Wi-Fi to Ethernet (or the other way around) to see if that resolves the issue.
  6. If you can not resolve the connection problems yourself, contact your internet service provider. 

 

The online platform C-sar is temporarily unavailable

You need to verify that you can log in to the Cropster online platform, C-sar, without any issues:

  1. Open your browser and try to access c-sar.cropster.com. 
  2. If you can access the login page, log in.
  3. If you encounter a maintenance or timeout screen, please wait a few moments and refresh the page. Should the error continue, capture a screenshot of the message and report it to us at support.cropster.com. 

 

There is an excessive number of Profiles 

 

⚠️  We recommend a maximum number of 100 Profiles. Avoid sync errors by keeping your active profile count within the recommended range. 

 

 

You need to archive any unused profiles to ensure Roasting Intelligence runs smoothly:

  1. Log in to the online platform C-sar.
  2. Navigate to Roasts on the main menu bar and select Profiles. You will be directed to the Profiles overview page. 
  3. Click the Profile Clean-up button in the upper-right corner.
  4. Access the Profile Clean-up page to view profiles inactive for 90 days. Use the Filter button to sort by Name, Machine, or Location.
  5. Select profiles via checkboxes and click Archive selected at the top right.
    Archived profiles cannot be selected in Roasting Intelligence or used as filters on the Roasts overview page.
 

A local network environment is suppressing the connection

To ensure a seamless data flow between Roasting Intelligence and C-sar, your company's firewall must be configured to allow *.cropster.com.

If you’re still having trouble, try connecting your PC to a mobile hotspot or an alternative network. If syncing succeeds on the new network, the issue is likely within your local setup; please reach out to your network administrator or ISP for assistance.


A corrupted roast file is blocking the outbox

If the previous steps haven't resolved the issue, a corrupted roast file is likely the culprit. This "stuck" file acts as a bottleneck in your local outbox, preventing any subsequent roasts from syncing to the platform.

Please send your log files. Once we’ve investigated, we will provide specific instructions to resolve the issue."


 If you have further questions, feedback, or concerns, please submit a support ticket directly from support.cropster.com. 

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