No connectivity on Acamar over Wireguard

[hardknox 0]

# sudo wg-quick up /root/Acamar.conf 
[#] ip link add Acamar type wireguard
[#] wg setconf Acamar /dev/fd/63
[#] ip -4 address add 10.179.85.94/32 dev Acamar
[#] ip link set mtu 1420 up dev Acamar
[#] resolvconf -a tun.Acamar -m 0 -x
[#] wg set Acamar fwmark 51820
[#] ip -4 route add 0.0.0.0/0 dev Acamar table 51820
[#] ip -4 rule add not fwmark 51820 table 51820
[#] ip -4 rule add table main suppress_prefixlength 0
[#] sysctl -q net.ipv4.conf.all.src_valid_mark=1
[#] iptables-restore -n
root@T620:~# ping 4.2.2.2
PING 4.2.2.2 (4.2.2.2) 56(84) bytes of data.
^C
--- 4.2.2.2 ping statistics ---
6 packets transmitted, 0 received, 100% packet loss, time 111ms

[hardknox 0]

Let's compare that to Cursa immediately afterwards:
 

# sudo wg-quick up /root/Cursa.conf 
[#] ip link add Cursa type wireguard
[#] wg setconf Cursa /dev/fd/63
[#] ip -4 address add 10.179.85.94/32 dev Cursa
[#] ip link set mtu 1420 up dev Cursa
[#] resolvconf -a tun.Cursa -m 0 -x
[#] wg set Cursa fwmark 51820
[#] ip -4 route add 0.0.0.0/0 dev Cursa table 51820
[#] ip -4 rule add not fwmark 51820 table 51820
[#] ip -4 rule add table main suppress_prefixlength 0
[#] sysctl -q net.ipv4.conf.all.src_valid_mark=1
[#] iptables-restore -n
root@T620:~# ping 4.2.2.2
PING 4.2.2.2 (4.2.2.2) 56(84) bytes of data.
64 bytes from 4.2.2.2: icmp_seq=1 ttl=56 time=28.8 ms
64 bytes from 4.2.2.2: icmp_seq=2 ttl=56 time=30.4 ms
^C
--- 4.2.2.2 ping statistics ---
2 packets transmitted, 2 received, 0% packet loss, time 2ms
rtt min/avg/max/mdev = 28.772/29.607/30.443/0.853 ms

Acamar doesn't appear to be down, so I'm not sure why there's no connectivity? 

Thanks