How to update noip DDNS while wireguard VPN is running?

I have a debian router that gives my entire house VPN access, it connects to the server that is in my parent's home in another city with wireguard. I need to do this because of firewall issues. However I want to SSH back into my debian router while I'm outside. The Debian router is directly connected to a Asus Router which is then connected to the ISP's gateway (router modem combo). I've tried creating a network namespace to run my ddns update, but I can't get any network access on it. I've tried to run a cron job that disables my VPN and updates, but that is not The issue is that the no-ip DDNS client, updates with the IP address of my parent's home (which makes sense). How do I update my DDNS while running a VPN? Are there any other easy way, besides a cron job that turns off my VPN and runs the DDNS update? Update: My network namespace config

#!/bin/bash
NS="nsx"
IF_MAIN="br0"
IF_NS="br0_ns"
IP="192.168.10.2/24"
GATEWAY="192.168.1.1"

ip netns del "$NS"
ip netns add "$NS"
ip link add link "$IF_MAIN" "$IF_NS" netns "$NS" type ipvlan mode l2
ip -n "$NS" link set dev lo up
ip -n "$NS" link set "$IF_NS" up
ip -n "$NS" addr add "$IP" dev "$IF_NS"
ip -n "$NS" route add default via "$GATEWAY" dev "$IF_NS"