VPN connects but no transfer after Bullseye

wg-quick@wg0.service - WireGuard via wg-quick(8) for wg0
     Loaded: loaded (/lib/systemd/system/wg-quick@.service; enabled; vendor preset: enabled)
     Active: active (exited) since Tue 2021-12-14 13:40:36 GMT; 5min ago
       Docs: man:wg-quick(8)
             man:wg(8)
             https://www.wireguard.com/
             https://www.wireguard.com/quickstart/
             https://git.zx2c4.com/wireguard-tools/about/src/man/wg-quick.8
             https://git.zx2c4.com/wireguard-tools/about/src/man/wg.8
    Process: 475 ExecStart=/usr/bin/wg-quick up wg0 (code=exited, status=0/SUCCESS)
   Main PID: 475 (code=exited, status=0/SUCCESS)
        CPU: 240ms

Dec 14 13:40:35 DietPi wg-quick[537]: net.ipv4.conf.wg0.forwarding = 1
Dec 14 13:40:35 DietPi wg-quick[537]: net.ipv4.conf.eth0.forwarding = 1
Dec 14 13:40:35 DietPi wg-quick[475]: [#] sysctl net.ipv6.conf.$(ip r l 0/0 | mawk '{print $5;exit}').accept_ra=2
Dec 14 13:40:35 DietPi wg-quick[542]: net.ipv6.conf.eth0.accept_ra = 2
Dec 14 13:40:35 DietPi wg-quick[475]: [#] sysctl net.ipv6.conf.wg0.forwarding=1 net.ipv6.conf.$(ip r l 0/0 | mawk '{print $5;exit}').forwarding=1
Dec 14 13:40:35 DietPi wg-quick[547]: net.ipv6.conf.wg0.forwarding = 1
Dec 14 13:40:35 DietPi wg-quick[547]: net.ipv6.conf.eth0.forwarding = 1
Dec 14 13:40:35 DietPi wg-quick[475]: [#] iptables -A FORWARD -i wg0 -j ACCEPT; iptables -t nat -A POSTROUTING -o $(ip r l 0/0 | mawk '{print $5;exit}') -j MASQUERADE
Dec 14 13:40:36 DietPi wg-quick[475]: [#] ip6tables -A FORWARD -i wg0 -j ACCEPT; ip6tables -t nat -A POSTROUTING -o $(ip r l 0/0 | mawk '{print $5;exit}') -j MASQUERADE
Dec 14 13:40:36 DietPi systemd[1]: Finished WireGuard via wg-quick(8) for wg0.

I got a bit overzealous and found this thread https://dietpi.com/forum/t/wireguard-service-wont-start-after-update/4299/6

I was actually using DHCP. I’ve switched it to static inside dietpi then rebooted and it’s working again. I’ve been running this same setup for a few years I feel but never had problems until recently