I'm unable to update Akeeba Backup Pro and Admin Tools Pro from the Joomla! administration. The update does work when we attempt through the Watchful.li dashboard either.
Thought it might have been hosting related, but when we switched from siteground to LiquidWeb the issue persisted.
We utilize the Sucurri firewall, but other sites we have there do not have an issue.
Thought it might be htaccess related, but switched out for Admin Tools Pro htaccess for the basic htaccess that ships with Joomla! and no change. (Restored secure htaccess file)
Tried deactivating Admin Tools Pro, but no change. (Reactivated now)
Happens with several other extensions, but not all. Regular labs and JCE are among those that don't work. JoomlaTools DocMan updates without issue and JSitemap PRO does also.
I can update, but I have to log into each developers site, download each extension and upload each manually via the Upload & Install Joomla Extension page (upload package file).
Please advise.