NETGEAR is aware of a growing number of phone and online scams. To learn how to stay safe click here.
Forum Discussion
Solved
Orbi doesn't fall over to 2nd or 3rd DNS
I have a couple of Raspberry Pi's running PiHole for my DNS. The setup works great, but the other day the first PiHole machine got unplugged, and my devices weren't able to reach the network, despite having a second and third DNS.
Why didn't the Orbi rollover to the other DNS?
16 Replies
Southpaw32 wrote:I have a couple of Raspberry Pi's running PiHole for my DNS. The setup works great, but the other day the first PiHole machine got unplugged, and my devices weren't able to reach the network, despite having a second and third DNS.
Why didn't the Orbi rollover to the other DNS?
I was going to suggest filing a Bug Report (https://bugcrowd.com/netgear ), but that seems to be aimed at vulnerabilities rather than products simply not working correctly. Certainly posting in the Idea Exchange would be a positive step (although I have serious doubts that anyone at Netgear ever reads these posts). https://community.netgear.com/t5/Idea-Exchange-For-Home/idb-p/idea-exchange-for-home
I have a dim memory from the (very old) DOS Days that IBM PC's would take multiple DNS entries, but after they got a response from one, they would never try any of the others again. The only recourse was the Big Red Switch (turn it off). In Windows 10, it appears that queries are sent to every DNS server and the first response is acted on. (Seems highly wasteful to me, except that most LAN devices have only one DNS server entry <the router>.)
With multiple Pi-holes, it is obvious from the Console that only one of them is being queried? (not "round robin")
Yes, I can see live stats on the query numbers, and for sure it doesn't move on to the next DNS.
I've had this happen on a few occasions now. (I was testing some overclocking for awhile)
Makes a person wonder if the Orbi DNS code came from (a) the OpenWRT that Orbi is based on, or (b) was ported from the Nighthawk line. Would be a hoot to see if the Nighthawk line has the same 'disappointment'. Will take me the weekend to set up a second Pihole and dig out a Nighthawk to compare with Orbi.
