Getting frequent HTTP Error 408 - How to fix request timeout issues? or HTTP Error 408 popping up – I

Ugh, http error 408 is the worst.

Could be a server config issue. If you're using Apache, tweak the TimeOut directive in httpd.conf. Default is usually 300 secs—bump it up if your requests take longer.

If it's shared hosting, contact support. Some servers are just overloaded.