Seems to be pretty common, check below what worked for me, found it in this WSL GitHub issue comment

From cmd execute

netsh winsock reset
netsh int ip reset all
netsh winhttp reset proxy
ipconfig /flushdns

From WSL execute

sudo bash -c 'echo "nameserver 8.8.8.8" > /etc/resolv.conf'
sudo bash -c 'echo "nameserver 8.8.4.4" >> /etc/resolv.conf'