package loss, ipsec tunnel problems

[therojam]

hi folks,

i recently replaced a m0n0wall w/ an opnsense firewall on a cable internet connection.

Since the replacement we're faceing package loss and have problem w/ ipsec vpn tunnels via this lines.

27.05.2021 15:37:26 - Approximate round trip times in milli-seconds:
27.05.2021 15:37:26 -     Minimum = 139ms, Maximum = 256ms, Average = 169ms
27.05.2021 15:37:26 - Control-C

Expect some nat fw rules for  IPSec UDP500 / UDP4500 / TCP10000 and ESP. its standard.

wan inteface is set to dhcpv4/6. lan w/ static 192.168.176.1 and dhpv4 range 192.168.176.1 - 192.168.191.254.

i pinged the same ip to  from the vm itself and had no loss. any ideas?