Thank you for your reply. I just installed the latest version (x.15, up from my old version x.13).
I tried a manual backup (online type) and it failed with this message:
"The backup failed: Communication with the online backup vault failed; more information can be found in the Activity Log. Please consult the event log for more information."
I checked the log, which had some additional information:
"A transmission operation failed.
If the following error message is not clear as to the problem and the issue persists, please contact support providing the complete event log for the activity. Diagnostic information follows:
Failed at: D:\Hosting\<my_path>\plugins\wponlinebackup\include\transmission.php(920)
A request failed for API Status.
Please ensure your blog is able to perform HTTPS requests to https://wordpress.backup-technology.com. You may need to contact your web host regarding this.
[Error Code http_request_failed] SSL certificate problem, verify that the CA cert is OK. Details:
error:14090086:SSL routines:SSL3_GET_SERVER_CERTIFICATE:certificate verify failed"
I'm not sure how to check/modify my access to that HTTPS link.
When I go to the "Online Backup Settings" tab, everything seems to be okay (saying it's connected and available).
I was able to do a manual backup (download type). The backup itself is successful. However, I repeatedly get "Network Errors" mid-way during the actual download. Where is this backup (ZIP file) on my server? Perhaps I can just FTP it down from the web server itself?