Multisite subdomain 404 when user logged in

A 404 is an interesting problem. How is it formatted? Like your server’s 404 or like WP’s?

The 404 is coming back as WP, with my theme wrapping it, not the host 404.

Strange that it only happens when the user is logged in, and works perfectly fine when there is no user logged in or admin is logged in.

Which theme? The main site or the subsite?

And do you have any caching running?

It is the theme of the subsite, yes I am running Quick Cache. I will try tonight to turn that off and see if the that is causing the issue.

Thanks!

I turned off quick cache, and installed 404 error monitor plug-in on the site. Same result, monitor picked up up, but didn’t tell me anything.

What other plugins are running network wide?

And what’s in your .htaccess?

htaaccess file contents…

# Use PHP5CGI as default
AddHandler fcgid-script .php

# BEGIN s2Member GZIP exclusions
<IfModule mod_rewrite.c>
	RewriteEngine On
	RewriteBase /
	RewriteCond %{QUERY_STRING} (^|\?|&)s2member_file_download\=.+
	RewriteRule .* - [E=no-gzip:1]
</IfModule>
# END s2Member GZIP exclusions

# BEGIN WordPress
<IfModule mod_rewrite.c>
RewriteEngine On
RewriteBase /
RewriteRule ^index\.php$ - [L]

# add a trailing slash to /wp-admin
RewriteRule ^wp-admin$ wp-admin/ [R=301,L]

RewriteCond %{REQUEST_FILENAME} -f [OR]
RewriteCond %{REQUEST_FILENAME} -d
RewriteRule ^ - [L]
RewriteRule ^(wp-(content|admin|includes).*) $1 [L]
RewriteRule ^(.*\.php)$ $1 [L]
RewriteRule . index.php [L]
</IfModule>

# END WordPress

all sorts of plugins…
advanced custom fields
s2member
exec-php
profile builder
user role editor
role scoper
wp show ids
fancybox
google analytics
gravity forms
import users from csv
export users to csv
online back up for wordpress
quick cache
really simple captcha
store locator plus
wordpress SEO

Well… My GUESS is one of your user managment plugins is doing it :/ It makes the most sense.