this post was submitted on 10 Nov 2024
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Hi there good folks! Trying to wrap my head around how this stack works. Previously I've been using NextDNS for this and it worked wonders. However, I've wanted to explore other options and have now gone with the Adguard+Unbound route on a RPI 4B.. This setup defo works, its blocking what I want blocked, but its created a new issue I've not had before. On my Graphene OS phone, as long as this setup is "active" (e.g. over Tailscale), all my notifications through various applications are getting delayed. Each notification come roughly 10 min late, if at all, or appear as soon as I open the corresponding app. I'm pretty sure this caused by either Adguard or Unbound but betting my money on Unbound - as I don't see any relevant DNS queries being blocked.

I am still a little unsure of what is causing this issue so if anyone would be able to enlighten me on how I could troubleshoot this issue I would be very grateful.

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[–] alwayssitting@infosec.pub 4 points 5 days ago* (last edited 5 days ago)

Try changing to another upstream DNS server in Adguard (such as https://dns.cloudflare.com/dns-query) and see if the problem gets resolved?