while trying to publish a 32 page publication. I have rebooted (a suggestion) my computer but still no luck. I have used publish online for over a year for this same type of document with not problems. This error has just started with the last upgrades. Any suggestions to fix this problem. I'm using InDesign CC.
From the Publish Online troubleshooting: Error 10 solution: "Unable to connect to the server. Remove any proxy settings from the system, restart the system, and try again."
You could also try logging out and logging back in in the Creative Cloud Desktop app > Preferences > General using your Adobe ID.
I have Windows 10 and by going into my settings and turning off "Manual proxy setup" under "Network & Internet" I was able to publish my InDesign publication. Thanks