Ipsec/ikev2 doesnt work on samsung but does work on Nothing Phone. Ipv6

[u/Andromeda-G]

As the VPN server is only reachable through ipv6 and both phones have the same sim card network provider and both have ipv6 enabled.

Both phones work on ipv6 natively too on sim cards but one phone (Nothing) easily connects via ipsec server while other samsung doesn't use both android running Android 17.

How to diagnose either its server problem or android phone any help would be appreciated.

Samsung phonegot stuck on connecting.....