MacBook Pro DNS resolving issues

[Upfront9902]

Hi all,

The past few weeks have been really bad with DNS connecting issues with my 2021 M1 Max Macbook Pro connecting to domains spontaneously. When I try to load a website, app or other internet service it will not connect. I can ping from terminal to ips like 8.8.8.8 but any attempt to use a domain for example to curl https://google.com will result in nothing.

My MacBook's on 14.7.5, I use Google Chrome and the custom DNS and VPN changes in system settings were removed.

I used to have next DNS's app for DNS routing but removed that. I had a VPN but removed the app using app cleaner. I am not sure what else to do to troubleshoot. I did just disable icloud private relay but I am using Chrome as my browser so I don't think it works on that anyway.

Hopefully somebody else has experienced this and has some ideas. Any help would be appreciated.

 

[Bigwaff]

What DNS service is your router configured to use? Google’s? Cloudflares? Your ISP’s?

 

[Upfront9902]

The router is configured for the ISP's.

 

[Bigwaff]

Reconfigure your router to use either Google (8.8.8.8) or Cloudflare (1.1.1.1) DNS and see if it helps. Your issue may not be DNS specifically but packet loss on ISP’s under provisioned network infrastructure.

 

[Upfront9902]

I did try that. It worked well yesterday and then today upon waking the laptop I had to restart again.

I am wondering if I run a cron job on root to reset the dns cache and restart mDNSResponder every hour if that would fix. The commands are below:

dscacheutil -flushcache
killall -HUP mDNSResponder

 

[Bigwaff]

Are all clients on your home network experiencing the same problem? If so, I suspect packet loss by your router or packet loss from within ISP under provisioned network.