[ server_mode ] Cannot connect , 1970-01-01 Timestamp for latest handshake, no data sent to client

[benchonaut]

What happened ?

• openvz machine ( yes , creepy :D )

• trying to replace wireguard go with boringtun results in "nothing" ( no bytes sent back to client )

How did that happen ?

( before )

wireguard-go thingy
wg setconf thingy /etc/wireguard/thingy.conf

(after)

screen -dmS wireguard boringtun-cli -f --disable-drop-privileges  thingy
WG_QUICK_USERSPACE_IMPLEMENTATION=boringtun-cli           wg-quick up thingy
wireguard-go thingy

Did it produce some logs ?

Client does not receive any byte

The Server says

peer: abcde/FGEHJ=
  preshared key: (hidden)
  endpoint: w.x.y.z:49861
  allowed ips: 10.1.1.101/32, fdbe:1111:1111:110::/60
  latest handshake: 53 years, 129 days, 9 hours, 19 minutes, 16 seconds ago
  transfer: 216 B received, 486 B sent

• regular wireguard(-go) says "never" instead of 53 years ago ( unix TS 0 == 1970-01-01)
• regular wireguard(-go) works under same conditions

Any ideas ?

Regards