I’m using MainWP 4.2, cache control is enabled. I’m using LiteSpeed Cache on the child site.
So I updated a plugin, but when I go to Sites > Manage Sites I still see “Never Purged”. The Cache Solution is displayed as “LiteSpeed Cache”, so at least it recognizes the right caching solution.
I then looked at the website in an incognito mode window and it still displayed cached pages from yesterday. After manually purging the cache I get freshly cached pages.
Hi @peter-fb
Can you please post the community system report from your MainWP Dashboard for review? The report is located in your Dashboard under Status → Server, on the top right of the page.
Be sure to use the button like the one below; this button hides all your private information:
Pressing the button auto-copies the report to your clipboard then just paste it in a reply here.
Hi @bojan, sure:
### Server Info Required Detected Status ###
MainWP Dashboard
MainWP Dashboard Version 4.2 4.2 Pass
MainWP Upload Directory Writable Writable Pass
MainWP Extensions
MainWP Clean and Lock Extension 4.0.1.2 API License Active Pass
MainWP Domain Monitor Extension 4.0 API License Active Pass
WordPress
WordPress Version >=3.6 5.9.3 Pass
WordPress Memory Limit >=64M 40M Warning
MultiSite Disabled =true true Pass
FileSystem Method = direct direct Pass
PHP
PHP Version >=7.0 7.4.28 Pass
PHP Safe Mode Disabled =true true Pass
PHP Max Execution Time >=30 seconds 180 Pass
PHP Max Input Time >=30 seconds -1 Pass
PHP Memory Limit >=128M 256M Pass
PCRE Backtracking Limit >=10000 1000000 Pass
PHP Upload Max Filesize >=2M 64M Pass
PHP Post Max Size >=2M 64M Pass
SSL Extension Enabled =true true Pass
SSL Warnings = empty Pass
cURL Extension Enabled =true true Pass
cURL Timeout >=300 seconds 60 Warning
cURL Version >=7.18.1 7.71.0 Pass
cURL SSL Version >=OpenSSL/1.1.0 OpenSSL/1.1.1d Pass
PHP Allow URL fopen YES
PHP Exif Support YES ( V7.4.)
PHP IPTC Support YES
PHP XML Support YES
PHP Disabled Functions No functions disabled.
PHP Loaded Extensions Core, PDO, Phar, Reflection, SPL, SimpleXML, bcmath, bz2, calendar, ctype, curl, date, dom, enchant, exif, fileinfo, filter, ftp, gd, gettext, gmp, hash, i360, iconv, imagick, imap, intl, json, ldap, libxml, litespeed, mbstring, mysqli, mysqlnd, openssl, pcntl, pcre, pdo_mysql, pdo_pgsql, pdo_sqlite, pgsql, posix, pspell, readline, session, shmop, soap, sockets, sqlite3, standard, tidy, tokenizer, xml, xmlreader, xmlrpc, xmlwriter, xsl, zip, zlib
MySQL
MySQL Version >=5.0 10.3.34-MariaDB-cll-lve Pass
MySQL Mode ERROR_FOR_DIVISION_BY_ZERO,NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITUTION
MySQL Client Encoding utf8mb4
Server Info
Server Software LiteSpeed
Operating System Linux
Architecture 64 bit
Server Protocol HTTP/1.1
HTTPS ON
Server self connect Response Test O.K.
User Agent Mozilla/5.0 (Windows NT 6.3; Win64; x64; rv:98.0) Gecko/20100101 Firefox/98.0
Gateway Interface
Memory Usage 41.46 MB
Request Time 1649342798
Accept Content text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,*/*;q=0.8
Accept-Charset Content N/A
MainWP Settings
Number Of Child Sites 4
Use WP-Cron No
Optimize for Shared Hosting or Big NetworksNo
Automatic Daily Update Install trusted updates
Abandoned Plugins/Themes Tolerance 365
Maximum number of posts to return
Maximum number of pages to return
Primary Backup System Default MainWP Backups
Maximum simultaneous requests 4
Minimum delay between requests 200
Maximum simultaneous requests per ip1
Minimum delay between requests to the same ip1000
Maximum simultaneous sync requests
Maximum simultaneous install and update requests
Active Plugins
FluentSMTP 2.1.1 Active
MainWP Child 4.2 Active
MainWP Dashboard 4.2 Active
WP Crontrol 1.12.0 Active
I see that I forgot to adapt the settings where there is a warning (I made a note somewhere to do it :P). But I don’t think that these settings are the reason why it doesn’t work?
@peter-fb Thanks for the report - I will be going over this for you today on our LS Test Servers to see what could be the issue. Thank you very much for your patience while I look into things.
I will update this ticket as soon as I have some more details.
I just updated more than one plugin on this child site via MainWP, and now on Sites > Manage Sites it displays “April 7, 2022 3:24pm” (UTC) on Last Purged Cache.
But it doesn’t seem to have an effect:
I then visited some pages on this child website via curl -I https://example.com/page/ and I still get x-litespeed-cache: hit and in the page source I see that the page was generated a few hours ago, so it seems that the cache wasn’t purged.
@peter-fb Can you please test this MainWP Child Plugin “version” and let me know if your cache finally clears for real. ( the actual version number will be 4.2.1 )
In order to test if it actually is you may follow this Doc:
@kwcjr Thank you for that! I just wanted to ask, I see that you guys have a new version out, 4.2.1, should I still test this version here or is it already included in the 4.2.1 version?
@peter-fb no it won’t that was pushed today along side this test. This change will be included in 4.2.1+
I have quickly pulled in the 4.2.1 changes prior to making mine for this test
4.2.1 + my Fix Dropbox - File Deleted
Thanks again for testing! 
@kwcjr I see.
I’ve installed your version, now I just have to wait for a plugin or theme update. 
@peter-fb Use the wp rollback plugin. WP Rollback – WordPress plugin | WordPress.org
@kwcjr I thought that there could be something like this, I’ll try it soon, thanks!
@peter-fb Thanks! This fix will be push in a few hours. I am pretty sure it’s working now too as the page load was noticeably different along side visual testing with the returned headers.
@kwcjr OK, I updated one plugin, and in MainWP it displays that the cache was purged at that time, but I still get this:
x-litespeed-cache: hit
And when I look at the page source it’s still the older cached version…
@peter-fb And you disabled your browser cache? You may need to do a manual purge from the plugin in order to load the new plugin code first…
@kwcjr I used curl -I https://www.example.com in a Linux command line to look at it, and I used an incognito window to look at the page source. Do you mean purge LiteSpeed Cache in the WordPress installation?
@peter-fb yes can you also test my way instead of using curl please.
@kwcjr OK, I purged LiteSpeed Cache manually, twice actually.
I tested it your way, it seems it still doesn’t work.
You can also see it in the page source:
Page generated by LiteSpeed Cache 4.6 on 2022-04-14 15:01:10
And in MainWP it displays that the cache was purged at 15:02 (I waited about a minute to update the plugin). So I should get a new generated page, but it still displays the old version.
Maybe I’m doing something wrong.
Would you mind opening a private Help Desk ticket so we can collect some additional information & investigate further? I will be the one responding.
@peter-fb I have replied to this ticket from our Help Desk System - could you please respond from there instead thank you.