Can't Add Child Site - Plugin not found

Weird problem here. I have a dozen or so sites hosted on VPS, along with my MainWP dashboard site. I’ve been able to add child sites with no issues. This morning I tried to add a new child site and I’m getting the “MainWP Child plugin not detected or could not be reached!” error. I’ve double-checked the connection and the plugin - it’s installed and activated. I deleted the plugin and re-added, re-activated, with no luck.

Any ideas?

1 Like

Hey @DisentangledTech

What result do you get for Test Connection for that child site?

And can you please post the community system report from your MainWP Dashboard for review? The report is located in your Dashboard under Info → 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:

image

Pressing the button auto-copies the report to your clipboard then just paste it in a reply here.

Hi Bojan,

Here’s the System Report:


### WordPress Check                Required                                               Detected                                     Status   ###

FileSystem Method                  = direct                                               direct                                       Pass        
MultiSite Disabled                 =true                                                  true                                         Pass        
WordPress Memory Limit             >=64M                                                  40M                                          Warning     
WordPress Version                  >=3.6                                                  6.0.1                                        Pass        

### PHP                            Required                                               Detected                                     Status   ###

cURL Extension Enabled             =true                                                  true                                         Pass        
cURL SSL Version                   >=OpenSSL/1.1.0                                        OpenSSL/1.1.1d                               Pass        
cURL Timeout                       >=300 seconds                                          300                                          Pass        
cURL Version                       >=7.29.0                                               7.64.0                                       Pass        
PCRE Backtracking Limit            >=10000                                                1000000                                      Pass        
PHP Allow URL fopen                N/A                                                    YES                                                      
PHP Disabled Functions             N/A                                                    No functions disabled.                                   
PHP Exif Support                   N/A                                                    YES ( V8.0.)                                             
PHP IPTC Support                   N/A                                                    YES                                                      
PHP Loaded Extensions              N/A                                                    Core, PDO, Phar, Reflection, SPL, SimpleXML, Zend OPcache, bcmath, bz2, calendar, cgi-fcgi, ctype, curl, date, dom, exif, fileinfo, filter, ftp, gd, gettext, hash, iconv, imagick, imap, intl, json, libxml, mbstring, mysqli, mysqlnd, openssl, pcntl, pcre, pdo_mysql, pdo_sqlite, posix, pspell, session, soap, sockets, sodium, sqlite3, standard, tokenizer, xml, xmlreader, xmlwriter, xsl, zip, zlib            
PHP Max Execution Time             >=30 seconds                                           120                                          Pass        
PHP Max Input Time                 >=30 seconds                                           -1                                           Pass        
PHP Memory Limit                   >=128M                                                 256M                                         Pass        
PHP Post Max Size                  >=2M                                                   512M                                         Pass        
PHP Safe Mode Disabled             =true                                                  true                                         Pass        
PHP Upload Max Filesize            >=2M                                                   512M                                         Pass        
PHP Version                        >=7.0                                                  8.0.12                                       Pass        
PHP XML Support                    N/A                                                    YES                                                      
SSL Extension Enabled              =true                                                  true                                         Pass        
SSL Warnings                       = empty                                                                                             Pass        

### MySQL                          Required                                               Detected                                     Status   ###

MySQL Client Encoding              N/A                                                    utf8                                                     
MySQL Mode                         N/A                                                    NO_ENGINE_SUBSTITUTION                                   
MySQL Version                      >=5.0                                                  8.0.28-0ubuntu0.20.04.3                      Pass        

### Server Configuration           Detected Value                                      ###

Accept Content                     text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.9
Accept-Charset Content             N/A                                                    
Architecture                       64		 bit                                               
Gateway Interface                  CGI/1.1                                                
HTTPS                              ON                                                     
Memory Usage                       10.95 MB                                               
Operating System                   Linux                                                  
Request Time                       1661439152                                             
Server Protocol                    HTTP/2.0                                               
Server self connect                Response Test O.K.                                     
Server Software                    Apache                                                 
User Agent                         Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/104.0.5112.102 Safari/537.36 Edg/104.0.1293.63

### MainWP Dashboard Settings      Detected Value                                      ###

Abandoned plugins/themes tolerance 365                                                    
Basic uptime monitoring enabled    Yes                                                    
Cache control enabled              No                                                     
MainWP Dashboard Version           Latest: 4.2.7 | Detected: 4.2.7 Pass                   
MainWP legacy backups enabled      Yes                                                    
Maximum number of pages to return                                                         
Maximum number of posts to return                                                         
Maximum simultaneous install and update requests                                                       
Maximum simultaneous requests      4                                                      
Maximum simultaneous requests per ip1                                                      
Maximum simultaneous sync requests                                                        
Minimum delay between requests     200                                                    
Minimum delay between requests to the same ip1000                                                   
Number of child sites              9                                                      
Optimize for shared hosting or big networksNo                                                     
Plugin advanced automatic updates enabledYes                                                    
Primary backup system              MainWP Legacy Backups                                  
REST API enabled                   Yes                                                    
Site health monitoring enabled     Yes                                                    
Theme advanced automatic updates enabledYes                                                    
Use WP Cron                        No                                                     
WP Core advanced automatic updates enabledYes                                                    

### Extensions                     Version                                                License                                      Status   ###

Advanced Uptime Monitor Extension  5.2.2                                                  Actived                                      Pass        
Boilerplate Extension              4.1                                                    Actived                                      Pass        
MainWP Atarim Extension            4.0.1                                                  Actived                                      Pass        
MainWP Bulk Settings Manager Extension4.0.4                                                  Actived                                      Pass        
MainWP Clone Extension             4.0.2                                                  Actived                                      Pass        
MainWP Custom Dashboard Extension  4.1.1                                                  Actived                                      Pass        
MainWP Domain Monitor Extension    4.0.1                                                  Actived                                      Pass        
MainWP Google Analytics Extension  4.0.4                                                  Actived                                      Pass        
MainWP Lighthouse Extension        4.0.2                                                  Actived                                      Pass        
MainWP Page Speed Extension        4.0.2                                                  Actived                                      Pass        
MainWP Staging Extension           4.0.3                                                  Actived                                      Pass        
MainWP Virusdie Extension          4.0.0                                                  Actived                                      Pass        
MainWP Vulnerability Checker Extension4.1.2                                                  Actived                                      Pass        
MainWP White Label Extension       4.1.1                                                  Actived                                      Pass        
MainWP WordPress SEO Extension     4.0.2                                                  Actived                                      Pass        

### Plugin                         Version                                                Status                                    ###

Akismet Anti-Spam                  5.0                                                    Inactive                                     
All in One SEO                     4.2.4                                                  Active                                       
DreamHost Panel Login              1.0.0                                                  Active                                       
Google Analytics for WordPress by MonsterInsights8.7.0                                                  Inactive                                     
Jetpack                            11.2                                                   Inactive                                     
MainWP Child                       4.2.4                                                  Active                                       
MainWP Child Reports               2.0.8                                                  Active                                       
MainWP Dashboard                   4.2.7                                                  Active                                       
MainWP Key Maker                   1.2                                                    Active                                       
OptinMonster                       2.9.0                                                  Inactive                                     
WP Mail SMTP                       3.5.2                                                  Inactive                                     
WP Super Cache                     1.8                                                    Active                                       
WPForms Lite                       1.7.6                                                  Active                                       
Yoast SEO                          19.5.1                                                 Active                                       

When I test connection I get “Connection Successful” URL: www.example.com (IP: …/…/…/…) - Received HTTP-code: 200 (OK)

1 Like

Thanks for the additional info. Nothing in the system reports stands out as an obvious issue.

Would you mind opening a private Help Desk ticket so we can collect some additional information & investigate further?

Opened the ticket. Hope we can figure this out!

The issue has been resolved.
The cause was the usage of a non-www URL when adding a site when in fact, the site has a www in its URL.

1 Like

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