Widget won't save, says "Not Acceptable"

Have you tried:

– deactivating all plugins to see if this resolves the problem. If this works, re-activate the plugins one by one until you find the problematic plugin(s).

– switching to the Twenty Eleven theme to rule out any theme-specific problems.

– resetting the plugins folder by FTP or PhpMyAdmin. Sometimes, an apparently inactive plugin can still cause problems.

– re-uploading the wp-admin and wp-includes folders from a fresh download of WordPress.

And, btw, please keep support on the forums and do not ask people to email you with responses/solutions. Thank you.

I had two plugins, both of which were inactive. I deleted them anyway, as per Step 1, with no effect.

I installed the Twenty Eleven theme as per Step 2; attempting to preview it returned the error “Fatal error: Class ‘Twenty_Eleven_Ephemera_Widget’ not found in /home/sinkers/public_html/stage/wp-includes/widgets.php on line 320”. Should I try “Twenty Ten”?

Going to to PHPMyAdmin to reset the plugins folder showed its value was already set to “a:0:{}” as per Step 3.

Re-uploaded my wp-admin and wp-includes folders from a fresh download of WP 2.8.4 as per Step 4; the problem still persists.

I’ve written to the help desk at my host about the mod_security update to Apache that was mentioned here and am still waiting to hear back.

All I can say is, it’s a good thing I have a mirror of my blog running over at blogspot.com, or else I’d be totally fuxored. I’d really rather host my blog on my own host under my own domain, but, hell, does WP have to be such a pain in the ass? I mean, is the pain in the ass designed into it, or what?

attempting to preview it returned the error

Sorry – my bad. I failed to notice that you are using a pretty old version of WordPress. Try switching to an (unedited) version of Kubrick instead.

Hi… just tried switching to the Kubrick (Default) theme, but the 406 “Not Acceptable” error persists.

I’ve been reading a couple of threads about editing the .htaccess file; I’ve found where mine is — at the root directory of my site — and have found a couple of snippets of code in the ModSecurity thread which are claimed to work. That’s pretty much the last thing I can think of to try until I hear back from my help desk guys.

Thanks,

You might want to contact your host. They could have updated/changed mod_security settings.

Thanks. Already ahead of you; I wrote my guy at the hosting company last night about this issue, and am just now following up with some questions about .htaccss and mod_security.

Actually, I ran into this same problem a while back, maybe a year, year and a half or so ago, when my host admins were tweaking some filters for “pr0n spam language” and it was triggering 406’s when using abbreviations like “FCC”; I ended up having to actually spell out “Federal Communications Commission” in my post.