[Plugin: W3 Total Cache] – Some problems

I have been using W3TC for a while, but lately I had to disable it :-\

The first problem I have been facing was blog’s feeds stopped working (like if no new posts where being issued); Technorati stopped updating my blog, and my blog started loosing authority and ranking ??
So while disabling feeds caching, I read about limiting feeds items issued by WP, and I tweaked blog’s feed URI adding the following:

?max-results=60

Using a feed reader I could ensure that feeds where working back again.

At that point I configured the CDN using the self-hosted/subdomain technique; it took quite a long time to scan the whole db looking for attachments, and the plugin couldn’t make it to import my media library, so I manually FTPed those missing files to the CDN.

I’ve left the plugin on for a few days; in the meanwhile I have redesigned to site to enable CSS Sprites thoroughly.

Before uploading the new site version, I did the following:
1) uploaded new stuff to the WP install
2) disabled the plugin (within W3TC main page, not in the plugin’s panel) to allow users to surf while updating the CDN
3) Updated the CDN manually
4) Erased all the caches, although I could notice a lot of file where being left by W3TC in the CDN in w3tc/min folder
5) turned on W3TC again

After a couple hours I noticed the following problems:
a) a test page I use, with third-parties scripts disabled (Adsense, Analyitics, etc) was being served to end users in place of the proper one!
b) an included php module, being run with asynch/Ajax/Jquery technique in the sidebar (shows WordPress.com stats top posts) was empty.

After all I have disabled the plugin again, awaiting for some help.

Specs:

- WP 2.9.2
- Shared host (HostGator)
- Plugins:
* All in One SEO Pack  	Version 1.6.12.1
* Contact Form 7 Version 2.3.1
* Disqus Comment System Version 2.33.8752
* Google XML Sitemaps Version 3.2.4
* Hackadelic SEO Table Of Contents Version: 1.7.3
* qTranslate Version 2.5.7
* Really Simple CAPTCHA Version 1.1
* Robots Meta Version 3.3.1
* Search & Replace Version 2.5.1
* Simple Tags Version 1.8
* W3 Total Cache Version 0.9.1.1
* WordPress.com Stats Version 1.7.2
* WordPress Related Posts Version 1.1.1
* WP-Cumulus Version 1.23
* WP Tuner

W3TC Options (I’m only listing only active ones):

********* PAGE CACHE **********************************
*** GENERAL
* Cache the home page
* Cache site, categories, tags, comments and feeds
*** ADVANCED
* Garbage collection interval:3600
* Never cache the following pages:
wp-.*\.php
index\.php
* Cache exception list:
wp-comments-popup.php
wp-links-opml.php
wp-locations.php
* Specify page headers:
Last-Modified
Content-Type
X-Pingback
P3P
*** CACHE PRELOAD
* Update interval:900
* Pages per interval:10
* Sitemap URL: https://MYSITE/sitemap.xml
********* MINIFY CACHE **************************
*** GENERAL
* Rewrite URL structure
* Automatically upload modified files
*** HTML
* HTML minify settings:
Enable
Inline CSS minification
Inline JS minification
Line break removal
* Ignored comment stems:
google_ad_section_
RSPEAK_
*** JAVASCRIPT
* JS minify settings:
Enable
Comment removal
Line break removal
*** CASCADING STYLE SHEETS
* CSS minify settings:
* Enable
* Line break removal
* CSS file management: (my custom theme)
*** ADVANCED
* Update external files every:86400
* Garbage collection interval:86400
********* DATABASE CACHE SETTINGS **********************
*** GENERAL
* Don't cache queries for logged in users
*** ADVANCED
* Maximum lifetime of cache objects:180
* Garbage collection interval:3600
* Ignored query stems:
gdsr_
wp_rg_
********* OBJECT CACHE **********************
*** GENERAL
* Don't cache WordPress Admin
*** ADVANCED
* Default lifetime of cache objects:180
* Garbage collection interval:3600
* Global groups:
users
userlogins
usermeta
site-options
site-lookup
blog-lookup
blog-details
rss
* Non-persistent groups:
comment
counts
********* BROWSER CACHE **********************
*** GENERAL
* Set expires header
* Set cache control header
* Set the Etag header to encourage browser caching of files.
* Set W3 Total Cache header
* Enable HTTP (gzip) compression (hidden when plugin running, Hostgator doens't support this on shared hostings)
*** CASCADING STYLE SHEETS AND JAVASCRIPT
* Set expires header
* Expires header lifetime:604800
* Set cache control header
* Cache Control policy:	Cache with validation
* Set entity tag (eTag)
* Set W3 Total Cache header
* Enable HTTP (gzip) compression
*** HTML
* Set expires header
* Expires header lifetime:604800
* Set cache control header
* Cache Control policy:	Cache with validation
* Set entity tag (eTag)
* Set W3 Total Cache header
* Enable HTTP (gzip) compression
*** MEDIA & OTHER FILES
* Set expires header
* Expires header lifetime:31536000
* Set cache control header
* Cache Control policy:	Cache with validation
* Set entity tag (eTag)
* Set W3 Total Cache header
* Enable HTTP (gzip) compression
********* USER AGENT GROUP SETTINGS **********************
* Group name: high
* Enabled
* Theme: pass-through
* User agents:
acer\ s100
android
archos5
blackberry9500
blackberry9530
blackberry9550
cupcake
docomo\ ht\-03a
dream
htc\ hero
htc\ magic
htc_dream
htc_magic
incognito
ipad
iphone
ipod
lg\-gw620
liquid\ build
maemo
mot\-mb200
mot\-mb300
nexus\ one
opera\ mini
samsung\-s8000
series60.*webkit
series60/5\.0
sonyericssone10
sonyericssonu20
sonyericssonx10
t\-mobile\ mytouch\ 3g
t\-mobile\ opal
tattoo
webmate
webos
* Group name: low
* Enabled
* Theme: pass-through
* User agents:
2\.0\ mmp
240x320
alcatel
amoi
asus
au\-mic
audiovox
avantgo
benq
bird
blackberry
blazer
cdm
cellphone
danger
ddipocket
docomo
dopod
elaine/3\.0
ericsson
eudoraweb
fly
haier
hiptop
hp\.ipaq
htc
huawei
i\-mobile
iemobile
j\-phone
kddi
konka
kwc
kyocera/wx310k
lenovo
lg
lg/u990
lge\ vx
midp
midp\-2\.0
mmef20
mmp
mobilephone
mot\-v
motorola
netfront
newgen
newt
nintendo\ ds
nintendo\ wii
nitro
nokia
novarra
o2
openweb
opera\ mobi
opera\.mobi
palm
panasonic
pantech
pdxgw
pg
philips
phone
playstation\ portable
portalmmm
ppc
proxinet
psp
pt
qtek
sagem
samsung
sanyo
sch
sec
sendo
sgh
sharp
sharp\-tq\-gx10
sie
small
smartphone
softbank
sonyericsson
sph
symbian
symbian\ os
symbianos
toshiba
treo
ts21i\-10
up\.browser
up\.link
uts
vertu
vodafone
wap
willcome
windows\ ce
windows\.ce
winwap
xda
zte
********* CDN **********************
*** GENERAL
* Host wp-includes/ files
* Host theme files
* Host custom files
* Import external media library attachments
*** FTP CONGIGURATION (skipped)
*** ADVANCED
* Enable changed files auto-upload
* Auto upload interval: 3600
* Re-transfer cycle limit:25
* wp-includes file types to upload:
*.css;
*.js;
*.gif;
*.png;
*.jpg
* Theme file types to upload:
*.css;
*.js;
*.gif;
*.png;
*.jpg;
*.ico;
*.ttf;
*.otf,
*.woff
* File types to import:
*.jpg;
*.png;
*.gif;
*.avi;
*.wmv;
*.mpg;
*.wav;
*.mp3;
*.txt;
*.rtf;
*.doc;
*.xls;
*.rar;
*.zip;
*.tar;
*.gz;
*.exe
* Custom file list:
favicon.ico
wp-content/gallery/*
wp-content/uploads/*
* Rejected files:
wp-content/uploads/wpcf7_captcha/*