I have been seeing periodic drops in internet access from LAN connected devices lately (last 2 months), and I haven’t been able to figure about exactly what is going on. There doesn’t seem to be a pattern, and it resolves itself after a few hours.
- I can access the internet from my router
- All devices on LAN can reach each other, both wired and WiFi
- All devices on LAN can reach router, both wired and WiFi
- I haven’t changed anything in router settings
- I haven’t added new devices to my local network
- I can’t find any IP conflicts
- It’s a simple flat network with two APs, a single switch, no VLAN separation
Restart doesn’t fix it unfortunately.
I am using my routers DNS, and it’s reachable from my laptop.
If you’re using your router as DNS, it’s using something else as DNS. Check those configs. One entry might be invalid or intermittently down. Try switching to another provider.
Also check that you’re actually using the router as the DNS. When you do an nslookup you can specify DNS server. Next time you have the issue try
Nslookup example.com 9.9.9.9
If that replies then it’s not a network issue it’s your DNS config, either locally or on the router itself.