Connection lost when posting

Hi,

Last week, we started getting the dreaded error “Connection lost. Saving has been disabled until you’re reconnected. We’re backing up this post in your browser, just in case”.

It occurs whenever we try to update or publish a post. Interestingly, if we wait awhile, the error disappears and eventually, the post does publish.

We haven’t noticed anything out of the ordinary on the website itself: only in admin. We also had no changes on the site content or plugins or anything in the time then issue started occurring: it was over a weekend, and we weren’t active.

We are hosted with GoDaddy, and I had a call with them mentioning the blacklist issues that other forum members mentioned, but they said that was not the case. We turned off all of our plugins one-by-one, but the issue till occurred.

We turned off the child theme (Metrolium,1.2.1), but it still occurred. The only time it did not occur was when we reverted to one of the standard WordPress themes. I reached out to the theme author for support, but have not heard back in a few days. Although my troubleshooting steps seem to point to the theme, I find this surprising since it’s a commonly used theme.

It happens with all users and all browsers.

Is there anything else I can do to try to isolate and resolve the issue myself?

Thanks!

Danya
https://www.raymark.com