Connman connecting to eduroam (ieee8021x), but internet access only lasts for a few seconds if at all

I'm running artixlinux with connman and wpa supplicant. I've never had any issues with other wifi networks. I can successfully connect to the wifi, and connman says 'Online' -but this only lasts for a few seconds - sometimes there's no internet at all. Below is the contents of /var/lib/connman/eduroam.config (I've taken the connman configuration from this archwiki page and I got the certificate file from the eduroam CAT ): [service_eduroam] Type=wifi Name=eduroam EAP=peap CACertFile=/etc/ssl/certs/Nottingham.pem Phase2=MSCHAPV2 Identity=someone@nottingham.ac.uk Passphrase=pass Sidenote - the eduroam CAT also generates a wpa_supplicant config file which looks like this: network={ ssid="eduroam" key_mgmt=WPA-EAP pairwise=CCMP group=CCMP TKIP eap=PEAP ca_cert="/home/user/.config/cat_installer/ca.pem" identity="someone@nottingham.ac.uk" altsubject_match="DNS:radius.nottingham.ac.uk" phase2="auth=MSCHAPV2" password="pass" } UPDATE - just figured it's probably a DNS issue because running ping 1.1.1.1 works. My /etc/resolv.conf looks like this: # Generated by dhcpcd from wlan0.dhcp # /etc/resolv.conf.head can replace this line domain nottingham.ac.uk nameserver 128.243.46.11 nameserver 128.243.42.5 nameserver 128.243.46.12 nameserver 128.243.42.6 # /etc/resolv.conf.tail can replace this line