Need some networking help here. Tag anyone that might be able to help!
My laptop suddenly started blocking a number of websites on my browser (tried many browsers). Today I was setting up a new wifi router and anything connected to that works fine. However, my laptop hardwired to the modem is now exhibiting the browser blocking for a lot of websites. Curiously YouTube still works fine.
Thoughts on how to resolve?
#asknostr
Has your connectivity issue been present since the new wifi addition or did it occur before that? Is your modem and new wifi the same device or two separate units?
Perhaps an IP conflict via two devices sharing the same static IP address in the same network causing routing issues. Verify you only have one dhcp running on one of the two devices if they both share the network. if not set your two networks with different ip ranges or use different subnets on each device.
See what happens when you use a vpn or tor
Are you using DNS servers who have web filters on? Could be at router level or per device. Sometimes they update the filter/list and stuff suddenly gets blocked.
Sometimes Facebook and YouTube get through when there’s a serious issue. It could be your new router with bad firewall settings
There are two ways the blocking could be happening.
1. At the dns level: you can verify this by attempting a dns lookup at the command line
2. At the IP level: even if your computer resolves to the correct IP, your machine won’t connect to it. This would require more investigation.
Are you using some kind of firewall on your computer?
Sometimes you just need to turn off your laptop 💻 and touch grass
Your ISP most probably has an inline DNS blocking mechanism. Try to set the DNS of your laptop to NextDNS for instance. Those of your browser too.
What Firewall/AV/Security software are you running on that machine? It sounds like it's blocking it?
Do you run a Pihole?
This sounds like some DNS-blocking solution is in play.
DNS, it's always DNS
i'd bet it was that too, try setting the name servers manually on the connection that's not working
it's probably also your ISP's name servers
Are you running a VPN with antitracker capabilities like iVPN?
Are you using something like PiHole or AdGuard?
Try capturing the network traffic with a tool named Wireshark (free) The info might reveal some clues.
Just change the DNS, if possible changed direct in the moden, never let this decision to your ISP, with DNS information is possible know which site you visit. You could install a #piHole it's a good solution.
Better solutions are custom firewalls Mikrotik, OPNSense, etc.
For now, just change the DNS on your machine.
