Disconnection with an error: HTTP error - HTTP/2 send again with decreased length

We have started to experience the same issue in our office. 4 of our sites have randomly disconnected today. They were running multiple versions of the software on the child plugins. I updated each of them to after the issue began to see if it would resolve the issue but it did not. When trying to reconnect them, I need to deactivate and reactivate the child plugin. They will then reconnect, but when I go to sync data, they disconnect and I see an error “HTTP error - HTTP/2 send again with decreased length”.
These sites are on two separate servers. One server is running litespeed and the other is running nginx.
I have only been utilizing the platform for about 6 months so the 2018 version would not be applicable to me.

Hi @sieverscreative

Your issue may be unrelated to the original problem from this topic, so we’ve created a new one.

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:


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

Hi Bojan. I appreciate your help with this. Here is my 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                                                  6.2.2                                        Pass        

### PHP                            Required                                               Detected                                     Status   ###

cURL Extension Enabled             =true                                                  true                                         Pass        
cURL Timeout                       >=300 seconds                                          60                                           Warning     
cURL Version                       >=7.18.1                                               8.2.1                                        Pass        
OpenSSL Version                    >=OpenSSL/1.1.0                                        OpenSSL/1.1.1v                               Pass        
OpenSSL Working Status             Yes                                                    Yes                                          Pass        
PCRE Backtracking Limit            >=10000                                                1000000                                      Pass        
PHP Allow URL fopen                N/A                                                                                                             
PHP Disabled Functions             N/A                                                    No functions disabled.                                   
PHP Exif Support                   N/A                                                    YES                                                      
PHP IPTC Support                   N/A                                                    YES                                                      
PHP Loaded Extensions              N/A                                                    Core, PDO, PDO_ODBC, Phar, Reflection, SPL, SimpleXML, Zend OPcache, bcmath, bz2, calendar, ctype, curl, date, dba, dom, enchant, exif, fileinfo, filter, ftp, gd, gettext, gmp, hash, iconv, imap, intl, ionCube Loader, json, ldap, libxml, litespeed, mbstring, memcache, memcached, mysqli, mysqlnd, odbc, openssl, pcre, pdo_mysql, pdo_pgsql, pdo_sqlite, pgsql, posix, pspell, session, shmop, soap, sockets, sqlite3, standard, sysvmsg, sysvsem, sysvshm, tidy, timezonedb, tokenizer, xml, xmlreader, xmlrpc, xmlwriter, xsl, zip, zlib            
PHP Max Execution Time             >=30 seconds                                           3000                                         Pass        
PHP Max Input Time                 >=30 seconds                                           600                                          Pass        
PHP Memory Limit                   >=128M                                                 1024M                                        Pass        
PHP Post Max Size                  >=2M                                                   128M                                         Pass        
PHP Safe Mode Disabled             =true                                                  true                                         Pass        
PHP Upload Max Filesize            >=2M                                                   122M                                         Pass        
PHP Version                        >=7.4                                                  7.4.33                                       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                                                    utf8mb4                                                  
MySQL Mode                         N/A                                                    ERROR_FOR_DIVISION_BY_ZERO,NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITUTION            
MySQL Version                      >=5.0                                                  10.3.39-MariaDB                              Pass        

### Server Configuration           Detected Value                                      ###

Accept Content                     text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.7
Accept-Charset Content             N/A                                                    
Architecture                       64		 bit                                               
Gateway Interface                                                                         
HTTPS                              ON                                                     
Memory Usage                       8.19 MB                                                
Operating System                   Linux                                                  
Request Time                       1695235234                                             
Server Protocol                    HTTP/1.1                                               
Server self connect                Not expected HTTP response body:                       
Server Software                    LiteSpeed                                              
User Agent                         Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/ Safari/537.36

### MainWP Dashboard Settings      Detected Value                                      ###

Abandoned plugins/themes tolerance 365                                                    
Basic uptime monitoring enabled    Yes                                                    
MainWP Dashboard Version           Latest: | Detected: Pass               
MainWP legacy backups enabled      No                                                     
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              188                                                    
Optimize for shared hosting or big networksNo                                                     
Plugin advanced automatic updates enabledYes                                                    
Primary backup system              MainWP Legacy Backups                                  
REST API enabled                   No                                                     
Site health monitoring enabled     Yes                                                    
Theme advanced automatic updates enabledYes                                                    
Use WP Cron                        No                                                     
WP Core advanced automatic updates enabledYes                                                    

### Extensions                     Version                                                License                                      Status   ###

MainWP Buddy Extension             4.0.5                                                  Active                                       Pass        
MainWP Clone Extension             4.0.3                                                  Active                                       Pass        
MainWP Database Updater Extension  4.0.4                                                  Active                                       Pass        
MainWP Google Analytics Extension  4.1.4                                                  Active                                       Pass        
MainWP iThemes Security Extension  4.1.4                                                  Active                                       Pass        
MainWP Pro Reports Extension       4.1.3                                                  Active                                       Pass        
MainWP Rocket Extension            4.0.5                                                  Active                                       Pass        
MainWP Team Control                4.0.4                                                  Active                                       Pass        
MainWP White Label Extension       4.1.3                                                  Active                                       Pass        

### Plugin                         Version                                                Status                                    ###

Classic Editor                     1.6.3                                                  Active                                       
iThemes Security Pro               7.3.6                                                  Active                                       
MainWP Dashboard                                                         Active                                       
WP Mail SMTP                       3.9.0                                                  Active                                       

Thanks for the system report. Nothing in it stands out as an obvious issue.

Can you please set your Action Logs to Debug and then try to reproduce the same “HTTP error - HTTP/2 send again with decreased length” error?

Perhaps the Action Logs will catch some additional information.

It looks like my action log was already set to debug. There is a whole bunch of stuff there from September 13th, but nothing since.

Once the site has disconnected, I try to reconnect but get an error “Public Key already set. Please deactivate and reactivate child plugin and try again”. Then I deactivate and reactivate the child plugin and the site will reconnect without issue. When I try to sync the data for my sites, I get red exclamation marks on 4 out of 186 of my sites and the sites become disconnected. When I hover over the red excalmation mark, I see the message “HTTP error - HTTP/2 send again with decreased length”. I will attach a screenshot.
This just began today. 3 of the 4 sites that are having the issue are on a WPO plan with Bigscoots. They are the only sites that we have on that server. I reached out to Big

scoots today and provided the server logs, but they could not identify the issue and suggested I reach out here. The 4th site is on a shared server where all of our remaining sites are located.

Thanks for the additional information.

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

And please refer to this Managers thread by its URL in the ticket.

1 Like

Thank you Bojan. I was out of the office for a couple of days, but have opened a ticket. I appreciate your help with this.

1 Like

This issue has been resolved. MainWP Support provided a beta version of the dashboard software that corrected the issue.


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