script is getting passed for 1 vusr but failed for 25 or 50 or 100 vusers in performance center.

Hi all,
how can is resolve the below issue.
I am running a script on performance center with multiple vusers as
script is getting passed for 25,50,100 vuser wtih ramp up setting as ‘2 vuser in every 15 sec’.
but getting failed for 25,50 and 100 vusers with ramp up setting as ‘simontaneously’,
all is getting failed and ther error message is –
Error -27492: "HttpSendRequest" failed, Windows error code=12029 (can not connect) and retry limit (0) exceeded for URL = "https://Clients1.google.com/generate_204" " [MsgId: MMSG-16819]"|
(and some time windows error code is appearing as 12157 ‘security channel error’)

though i have tried with all all possible option combination of winlet and socket in RTS and i also tried with use of function web_set_socket_option ("SSL_VERSION", "TLS1.2/1/1.3");

But nothing is working.
Please suggest the possible solutions !!!