L2TP VPN configuration

with the new iOS 14 update now the VPN I configure is not working it keeps showing:
"The l2TP-VPN server is did not respond. try reconnecting. if the problem continues, verify your settings and contact your admin."
but if I try on my other iphone which runs ios 13.7 it connects fine with the same exact settings.
L2TP VPN configuration
 
 
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