That is weird, can you try 
# for window   set http_proxy=http://192.168.5.39:8080/ 
# for linux
export http_proxy=http://192.168.5.39:8080/ 

lwp-request -USe -m get https://www.eserve.com.sa/
lwp-request -USe -m head https://www.eserve.com.sa/

[download]
and show the output

In reply to Re^2: LWP for URL monitoring - 500 connect timeout errors by Anonymous Monk
in thread LWP for URL monitoring - 500 connect timeout errors by oalvi

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