This thread for removing W3 may also help
https://wordpress.org/support/topic/360682
By chance .. do you have permalinks set?
@lincme Tried that but it just threw up some different errors every time I deleted anything related to W3TC. I may have to resort to restoring this morning’s backup. This is probably a stupid question, but was I supposed to disable page caching BEFORE activating the plugin? I just installed it and immediately activated it so I’m guessing this is why I’m getting all these errors. Can page caching be disabled via the WordPress database?
/wp-admin/options-general.php?page=w3-total-cache/w3-total-cache.php
In the meantime, ftp and rename the plugin folder as lincme suggested. See if you can login then …
@jmarino; If all else fails, you can just pull the plugin folder. WP and BP are neat that way, as they just report that the plugin is gone and deactivated when you go to the plugins page again. (Other systems we’ve tried freeze and die totally, which is no fun).
@LPH2005 Hey could you do me a favor? Could you copy/paste the URL of the “deactivate” link for this plugin? Edit out your domain if you want… I would like to see if that at least gives me control of my admin panel back.
Edit: forgot to mention… I tried increasing the memory values in the .htaccess file and the error is still the same (same memory values too).
OH – very nice – while replying to your note above I was installing the dev version of this plugin. It’s very powerful. The options increase, improve the browser caching options, etc.
@jmarino – OK. I keep my php_value numbers at 128M – and some of them are actually at 256M – but I have no idea why they are this high unless it was just some tinkering at one point. But give it a higher number in the .htaccess
OK, I Installed W3 Total Cache and as soon as I activated it, I get the following error in my WP admin panel:
Fatal error: Allowed memory size of 33554432 bytes exhausted (tried to allocate 30720 bytes) in /wp-admin/includes/template.php on line 3292
I contacted my server support and they told me to add the following line to my .htaccess:
php_value memory-limit 50M
I did that, and nothing changed. They said it’s going to take up to 3 hours to propagate though so maybe I just need to wait a bit longer and see what happens. I hate it when stuff breaks :S
Wordpress 3.0/Buddypress 1.2.4.1
When I am on the root blog of my site, an uploaded avatar displays in the comments, as well as when I call get_avatar($user_id) or even bp_core_fetch_avatar($user_id). When I am on a non-root blog, the default avatar image display despite the existence of the user’s avatar. How do I make sure a user’s avatar displays consistently on all blogs?
Thanks.
@LPH2005 – thanks for the info! I will test W3 Total Cache on my site as soon as I get some spare time and I will let you know how it goes.
Oh good grief! @LPH2005; thank you. I’d installed W3 Total Cache, set it up and forgot about it. Then noticed terrible lagging on my BP site. Just switched off page caching and zippeee… This should go on a BP Wiki page entitled, “Things that will bite you in the ass without any warning”. 
Yes, I use W3 Total Cache on two sites that are on RackSpace – and they have their own caching (known as MA) that I couldn’t get to work well with WP Super Cache and BP. Paul is correct that you must not enable page caching with W3 or it’ll be a mess. Now, I couldn’t get CDN to work with W3. Amazon is setup properly but the information was never pulled properly.
Hope that helps.
Thank you for the link. I saw that one too just moments ago but there is not much info in there yet. This seems to be a hot topic around these parts. Have you personally had any success using W3 Total Cache with the newest versions of WordPress and BuddyPress? I would like as much info as I can get about this before I dive into something head-first. Know what I mean?
Hello,
I am creating a new social networking site and I was wondering what the best option is for caching using WordPress 3.0 + BuddyPress 1.2.4.1. I have read the “Improving Performance” article, but it seems to be a bit dated as the file-based caching solution is for WordPress 1.0. I am using a shared server for the time being, so I don’t think memory caching is the way to go for me. I have read through several forums looking for a viable solution, but there’s not much info yet for the new versions of these web applications. I need the site running at maximum performance as the server is in Europe (I live in the US) and I wish to have a world-wide subscriber base. If there is no solution at the moment that doesn’t “break things” (for lack of a better phrase), I am not interested in even wasting my time testing them out as I have lots of work to do and not a lot of time to do it. If you have a success story with implementing a file-based caching solution with WordPress 3.0 and BuddyPress 1.2.4.1, I would love to hear about it so I can try out your method on my own site.
On a un-related subject, I cannot seem to upload a custom avatar on this site. Am I doing something wrong or is there something wrong with this site at the moment? It seems to be working fine on my own site.
I just wanted to let everyone know that http://www.TheChemBook.com was shown during a poster session at the HP conference this morning. It surprised my friend who was attending the conference. He sent the text message a little while ago. According to him, hundreds of chemistry teachers and department chairs (from around the world) saw the site and asked numerous questions. Many wanted to know the backend: WordPress, BuddyPress, and MediaWiki. He tried his best to answer questions – but again – he was caught off-guard. At least BP received a little attention today – from the school teachers 
I am grateful to the devs of BP – the site in its current improved state wouldn’t have been possible without everyone’s endless help here. Again – thank you.
Well these are common WP type functions – have a look at the codex.
https://codex.wordpress.org/Function_Reference/add_filter
If you’re building a site – might as well try changing it the correct way instead of informing others to hack the bp-core. (as that will just lead to bigger problems down the road for those who may not understand the changes made). BuddyPress is littered with hooks
something like:
function my_blank_activity_permalink( $content ) {
return ”;
}
add_filter(‘bp_activity_permalink’, ‘my_blank_activity_permalink’, 1, 1 );
When i do this, the handle is corrected. But when i mention a user with a dot in the handle like @ a.sjogren it dosen´t work. Is this a known issue?
Does this work on buddypress.org? Can @DJPaul or someone try to mention me in a reply to this post as a test?
One more question: is it possible to disable the ability to create usernames with dots in wordpress backend?
I’ve installed buddypress on my server but having problems with wordpress and the file permissions buddypress never created the bb-config file which I think is because of file permissions can you help?
wordpress 3 and the standard buddypress template
@rohan_kapoor – install same as your configurations; check bb-config.php – sample here http://wordpress.pastebin.com/1qAdu2q3
– after correcting your bb-config.php at root, you can re-run forum creation – BuddyPress > Forums Setup and click on re-install link. There should be 7 tables of bbPress generated in database wp_bb_forums, wp_bb_meta etc. as well as a new bbPress folder generated within wp-content/plugins/buddypress folder in server.
I don’t know if this a good place to start this question… but since WordPress 3.0 have a good overhaul to its menu system.. i think BP would be awesome if we can integrate it with WP3.0’s menu system..
In terms of customization it would be superb.. but since i’m no programmer i don’t know how to do it in the first place haha..
I was getting a redirect loop on the wp-signup.php page on my sub networks
Well found out what’s causing the problem here
https://core.trac.wordpress.org/ticket/13211#comment:1
It has to do with the code that is in wp-signup.php in lines 25 -33
if ( !is_multisite() ) {
wp_redirect( get_option( 'siteurl' ) . "/wp-login.php?action=register" );
die();
}
if ( !is_main_site() ) {
wp_redirect( network_home_url( 'wp-signup.php' ) );
die();
}
Wordpress doesnt allow signups on subsites. When someone tries to sign up on a sub site, it redirects them to the main site.
I am using the multi network plugin,
(https://wordpress.org/extend/plugins/wp-multi-network/)
even though a site may be the main site for an additional network, wordpress still sees it as being a subsite so it keeps redirecting in an endless loop. By commenting out those lines it fixed the problem.
Is there a way to make a plugin for this instead of having to hack core?