Not sure if this was obvious or mentioned already but for those who weren't aware of this Rethink might block some requests such as Bluetooth or network requests. Therefore apps like Quick Share, KDE Connect, PairDrop etc didn't work properly e.g. they couldn't detect other devices. I just found that out today and was confused as to why all file sharing apps stop working after a while The solution for me was the following: Open the app head to Configure, select Apps, search for the app you're looking for and click on exclude. This should fix any issues with file sharing apps Other DNS or VPN Adblockers might have the same issue but at least you have the option to exclude certain apps from the DNS and Firewall. I was using a different Adblocker back then but switched to Rethink a couple of months ago and I'm actually glad I did because I actually have control over what I block Hope this helps   submitted by   /u/RanMouri26   to   r/rethinkdns [link]   [comments]