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DNS stopped working via my R8000?
I have a Nighthawk R8000 router, and everything was working fine for a couple of years; my clients had its address (10.0.1.1) set as the DNS server in their network setup. In the last 2 weeks, I'm finding that the network keeps "going out" for client devices, but then realized that it wasn't the network was going down but the DNS was: everything was reachable by IP address but not by name. When I change my clients to use 8.8.8.8 for DNS, it works again. So, what could be happening - why has my router stopped proviing DNS like it used to, and what are best practices for DNS settings on the router and on our client devices network setup?
> [...] R8000 [...]
Firmware version? Recently updated?
> [...] why has my router stopped proviing DNS like it used to [...]
Disfunctional router firmware? Does it help to restart the router?
Or to reset its settings, and manually reconfigure the router? Or to
try that with a different/older firmware version?What is the R8000 using as its DNS server(s)? (BASIC > Internet :
Domain Name Server (DNS) Address?) Does it (do they) work properly?> [...] what are best practices for DNS settings on the router and on
> our client devices network setup?It depends, but generally, "Get Automatically from ISP" on the
router, and the same on the clients. (That is, on the clients, use the
router, which is what I'd expect DHCP from the router to give you.)
If your ISP's DNS servers are faulty/unreliable, then specify others
manually on the router.Blame assignment is job one. Change the DNS servers on the router
from the ISP defaults to, say, "8.8.8.8" (and so on). Change a client
device to use the ISP defaults. Does the problem follow the ISP servers
settings, or the use of the router for DNS?
5 Replies
> [...] R8000 [...]
Firmware version? Recently updated?
> [...] why has my router stopped proviing DNS like it used to [...]
Disfunctional router firmware? Does it help to restart the router?
Or to reset its settings, and manually reconfigure the router? Or to
try that with a different/older firmware version?What is the R8000 using as its DNS server(s)? (BASIC > Internet :
Domain Name Server (DNS) Address?) Does it (do they) work properly?> [...] what are best practices for DNS settings on the router and on
> our client devices network setup?It depends, but generally, "Get Automatically from ISP" on the
router, and the same on the clients. (That is, on the clients, use the
router, which is what I'd expect DHCP from the router to give you.)
If your ISP's DNS servers are faulty/unreliable, then specify others
manually on the router.Blame assignment is job one. Change the DNS servers on the router
from the ISP defaults to, say, "8.8.8.8" (and so on). Change a client
device to use the ISP defaults. Does the problem follow the ISP servers
settings, or the use of the router for DNS?Firmware V1.0.4.28_10.1.54 , no recent updates.
Changing "Get Automatically from ISP" to 8.8.8.8 and 8.8.4.4 seems to help!
> Changing "Get Automatically from ISP" to 8.8.8.8 and 8.8.4.4 seems to
> help!Give it a while. It's not unusual for routers running Netgear's fine
firmware to fail hours or weeks after a restart (or settings change?),
so I would not get too optmistic too quickly. But the general scheme is
to change one item at a time in the configuration until you either
recreate the problem, or never see it again. Happy hunting.
