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Failed request of 'haproxy router-* router on port 443

Hi, I am facing TCP connectivity rate for process nginx_UAT_RP on host XXX has decreased to 60 %
and there are lots of request getting failed due to maximum 404 and few 403 and 2 or 3 502 bad request
.Below are the details
Service haproxy router-* router on port 443

Host openshift cloud
Process haproxy router-* router (router-1-8lskc)
Service type Web request service
Service main technology HAProxy
Technology HAProxy, Docker

Client-side metadata

HTTP method GET
Response status 404 - Not Found

please help what can I do to troubleshoot this issue.