I have this error "ERR_NETWORK_CHANGED" in Edge with Aguard v3.4 nightly 7 (23) (and previous version) on Samsung A7 (2018) with Android 9 up-to-date. Always i open a link or open edge with a web page previously open ex: link.
It turns out that if you follow a link from bookmarks or open a previously loaded page you meet with this error?
This is an old chromium bug when using any VPN service. Not only AdGuard. If you reload the page everything will open correctly, right?
Unfortunately, there's nothing we can do about it on our side.