Am 18.10.21 um 10:03 schrieb Joel Cross:
Thanks Michael. To whom it may concern, I should have mentioned that I use network manager to control my wireless networks - presumably this uses ifupdown under the hood, but I'm not 100% on that
It doesn't. It can read ifupdown configuration to some extent and thus avoid managing interfaces which are also managed by ifupdown, but that's about it.
Can you share the contents of your /etc/network/interfaces /etc/network/interfaces.d/*
How does your /etc/resolv.conf look like ? cat /etc/resolv.conf ls -la /etc/resolv.conf cat /run/NetworkManager/resolv.conf
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