WAMP 5.512 hang up over 10 times a day (no replies)

Hi all,

I am using WAMP 2.5 since 2016, it mainly act as an API server and everything work great until two weeks ago. The Apache begin to crash without any notification ,however, the WAMP icon is still green. We have to mainly restart the service in order to resume API requests from our clients.

When I looked into the Apache error log.
" I got this one 'Mon Jun 20 16:31:36.277005 2022] [mpm_winnt:error] [pid 43180:tid 4852] AH00326: Server ran out of threads to serve requests. Consider raising the ThreadsPerChild setting"

We have tried to adjust the the setting of the httpd.mpm.conf, but still no luck


# WinNT MPM
# ThreadsPerChild: constant number of worker threads in the server process
# MaxConnectionsPerChild: maximum number of connections a server process serves
<IfModule mpm_winnt_module>
ThreadsPerChild 1000
MaxConnectionsPerChild 10000
</IfModule>


The server configuration is windows server 2022 vm machine
32G ram


The situation getting worse, sometimes the Apache hang up again after restart the WAMP. Usually it hangs 20 times a day interval like once an hour.

Anyone here has encountered the same issue and how did you solve it?

Thanks in advance.