Had to edit post just now. After about 10-15 minutes, the problem returns and I have to input IP address to get it going again. That's dubious as hell...
I would think your computer would be caching DNS, but who knows.
Maybe change your router's DNS to Quad9 or something:
9.9.9.9
149.112.112.112
and clear the computer's DNS cache. You can do that in Windows by issuing this command in CMD:
ipconfig /flushdns
Reboot everything, maybe that will do something. If you're still losing resolution, there's something funny going on.
I've been through this exercise already unfortunately. What I come to find out is it doesn't matter what DNS address I put into the IPv4 properties, the ISP-provided modem/router has an unchangeable DNS server address it always uses.
There could be some underlying root cause that is no fault of the ISP, but given the symptoms they sure look like they have some degree of guilt. Right now, it looks like they have a rule in place on their DNS server to remove the record.
Rant follows.
We're back to "get your own modem and router, dipshit." I know, I know... but damnit there's a principle being broken here on the ISP side if they're truly responsible for this. Shouldn't have to be this way in the first place, they should have no business in curating content. I've got my own projects to tend to, I don't need accessing a utility to be a f-ing science project.
Have you tried encrypting your DNS?
What I come to find out is it doesn't matter what DNS address I put into the IPv4 properties, the ISP-provided modem/router has an unchangeable DNS server address it always uses.
If what I suggested didn't work, that was going to be my diagnosis. I had a similar problem when my ISP was trapping certain responses and fucking a lot of "We expect this result to be unresolvable" queries.
The only other thing I can suggest is if your ISP has an option to disable unresolved query ads (where they provide you a list of ads in response to a query that doesn't resolve,) turn it off. That can mess with things too.
Your ISP isn't your friend, and they data mine your traffic as much as they can.
(post is archived)