Connection error message preventing installation / update / login

Problem: You're trying to install/update the ReadCube Desktop app but run into a connection error message:
"There was a problem connecting to ReadCube..."
Or you are not able to log into the app.

Please try the following:

- Check your internet connection - ReadCube needs to check for updates prior to starting so please make sure you're on a reliable network.
- Temporarily turn off antivirus/firewall software.
- Check the "vault" / quarantine of antivirus software to make sure ReadCube files/folders are not being isolated. 
- Do you have the default operating system browser installed? For Windows, this is Internet Explorer, and for Mac, this is Safari. ReadCube relies on these browsers for some settings so please check that the browser is installed and functional on your computer; however, it does *not* need to be set as the actual "default browser" on your computer.
- Make sure cookies are enabled on these browsers. 
- If the IE/Safari browser is out-of-date, please try updating to the newest version. This often fixes Connection Error messages.

- If you've checked all of the above and are still running into the problem, please try the following prior to contacting
- On Windows, open Internet Explorer. On Mac, open Safari.
- Go to and click on the "Login" link in the top right corner:
- Are you able to successfully log into the website?

Please also see related support article:

ReadCube Desktop (Mac/PC)

  1. Can I mark an article as a favorite in ReadCube Desktop?
  2. How do I annotate an article in ReadCube Desktop?
  3. How do I delete articles from my library in ReadCube Desktop?
  4. How do I organize my articles in ReadCube Desktop?
  5. Can ReadCube Desktop automatically organize my articles into lists?
  6. How do I rename or remove a list in ReadCube Desktop?
  7. How do I move Notes/Highlights/Lists from one computer to another without Cloud Sync?
  8. How can I export references from ReadCube?
  9. Can I download PDFs using ReadCube Desktop from journals to which my institution is a subscriber?
  10. ReadCube Desktop Search and Download Tips
  11. How do I use advanced search terms in ReadCube Desktop?
  12. How do I search my library in ReadCube Desktop?
  13. How can I delete articles downloaded via ReadCube Desktop from my computer?
  14. Where does ReadCube Desktop store downloaded article PDFs?
  15. How can I change my article's download provider in ReadCube Desktop?
  16. ReadCube Desktop Article Download Tips
  17. What can I do if ReadCube won't launch / update / install?
  18. How do I use the Enhanced PDF in ReadCube Desktop?
  19. How to Enable Scrolling on Lenovo Laptops in ReadCube Desktop
  20. ReadCube Desktop Release Notes
  21. Manually Adding References/Citations into your ReadCube Library
  22. What are the system requirements for the ReadCube desktop application?
  23. What are Recommendations?
  24. How do I completely remove ReadCube Desktop from my computer?
  25. How can I make ReadCube Desktop's display change to Chinese, Japanese, or Korean?
  26. Where is ReadCube 2.0 installed?
  27. What are connectors?
  28. Why does ReadCube look fuzzy on my high resolution display?
  29. Why do I get a blank/white screen when trying to download a ScienceDirect paper?
  30. Connection error message preventing installation / update / login
  31. Adding Metadata-only References to your Library
  32. Article Mis-labelled as Supplement (or vice versa)
  33. How do I export / back up / transfer my ReadCube library?
  34. How do I submit requested files to Support for troubleshooting?

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