Reply

Re: R8000 - DNS not functioning unless router bypassed.

Tasoril
Aspirant

Re: R8000 - DNS not functioning unless router bypassed.

For @Chir and anyone else who may be watching this thread, @ElaineM has opened case 27838020 for me and I am working with L2 support on the issue. I'll update the thread with any results we might come up with.

 

For the time being, please do ensure that you apply the latest firmware (V1.0.3.26_1.1.18) if you haven't already as this update is an important security update for the router. (It does not change anything else, so it won't correct the issue in this thread, however.)

Message 51 of 68
Chir
Tutor

Re: R8000 - DNS not functioning unless router bypassed.

Thanks for the heads up.  I was contacted by an L2 support specialist, too --- John.  I provided John with lots of informaiton.  Hopefully it will all make sense!

 

 

Message 52 of 68
Chir
Tutor

Re: R8000 - DNS not functioning unless router bypassed.

Tasoril 

 

I've received a message from Netgear saying the problem is resolved.  It appears they've released new firmware.  They've asked me to test the issue to make sure it's resolved, but thats actually more difficult than it sounds.  My internet <knock on wood> has been pretty stable lately, and I haven't seen the DNS issue.

 

I've asked for clarrification in the form of a patch note.  I'm hoping that if they tell me what they fixed, I can try to simulate something on the old firmware -- update, and try it again to see if it's fixed for me.

 

With that said, they've asked me to test version 1.0.3.26 : http://kb.netgear.com/000036534/R8000-Firmware-Version-1-0-3-26?cid=wmt_netgear_organic

 

The only public Patch note is: 

  • Fixed the security issue about Security Advisory VU 582384.

 

There is also an 8.0.3.32: http://kb.netgear.com/000036746

Again, only one note:

  • Fixed the security issue about password recovery.

 

Neither of those patches look like they fixed anything with DNS, so I'm not holding my breath.  I have a hunch that I'm just being asked to upgrade to the latest firmware in hopes that it resolves the issue.

 

 

 

Message 53 of 68
Tasoril
Aspirant

Re: R8000 - DNS not functioning unless router bypassed.

@Chir

 

I received the same response. They also wanted me to try to replicate the issue by pulling the coax from the modem and plugging it back in, but unfortunately that won't reproduce the issue (I figure it's got to make it a couple hops before failing for the issue to occur, not lose connectivity 100% instantly) - I told them it sometimes goes a month without being an issue so it may take a while to know if it didn't fix it (Hard to ever know that it DID fix it, since I'm unable to replicate what causes the issue myself and have to rely on my ISP failing me to know lol) - They said they'd keep the case open, so we'll see how it goes.

Message 54 of 68
KingJerky
Aspirant

Re: R8000 - DNS not functioning unless router bypassed.

I was also having the exact same issue.  Glad that I found the thread and someone that actually understands how things work.  I manage servers and data center infrastructure so I can appreciate when someone posts something like this with information that actually pertains to the problem IN DETAIL.

 

I have also moved to the latest firmware today.  I had one issue immediately (within 5 minutes) of DNS name resolution failing once the router had booted and started the wireless radios.  I went into the configuration and renewed my leased IP address, rebooted the router again and am online, but we'll see for how long.

 

I also suspect the request to upgrade firmware was a rouse to see if our issue goes away.

 

If Netgear cannot get the code right on this router after being "in the wild" this long, I may be hopping over to DD-WRT as they have made very good progress on a stable firmware for it.  I have a lot of Netgear products:  router, NAS, Arlo Pro and switches...  The support from Netgear has been hit or miss for me over the years and so has the firmware on the Router and the NAS.  

 

I will post an update should the issue resurface or if I'm stable for a week or more.

Model: R8000|Nighthawk X6 AC3200 Smart WIFI Router
Message 55 of 68
MWiggins
Tutor

Re: R8000 - DNS not functioning unless router bypassed.

Let us know if you get DDWRT to work. The firmware for this device is laughable. I've now migrated over 50 devices in my house to bypass the router for DNS yet everytime a new device enters the house or a guest they have IP conflict issues and DNS issues right away.

Message 56 of 68
doglmci0311
Aspirant

Re: R8000 - DNS not functioning unless router bypassed.

I setup a free account at opendns.com it lets you do the parental control and you can block stuff like VPN and dozens of other stuff.  However it does not give you any time stamping or other information to help monitor your children. If anybody knows of any DNS services that are free like opendns.com and do this, Please let me know.

Message 57 of 68
FURRYe38
Guru

Re: R8000 - DNS not functioning unless router bypassed.

Might try dyn.com and see.


@doglmci0311 wrote:

I setup a free account at opendns.com it lets you do the parental control and you can block stuff like VPN and dozens of other stuff.  However it does not give you any time stamping or other information to help monitor your children. If anybody knows of any DNS services that are free like opendns.com and do this, Please let me know.


 

My Setup (Cable 1Gbps/50Mbps)>CAX80 v2.1.2.1(LAG Disabled)>RBK853 v4.6.3.16(AP) & RBK752 v4.6.5.14
Additional NG HW: C7800/CM1100/CM1200CM2000, Orbi CBK40, CBR750, RBK50(v22), SXR30(v110), R7000(v34), R7800(v84), R7960P(v82), EX7500/EX7700, XR450(v120) and WNHDE111
Message 58 of 68
doglmci0311
Aspirant

Re: R8000 - DNS not functioning unless router bypassed.

Tried to give you a "kudos", but that doesn't work wither or maybe it's just firefox LOL

Eric Cutter Scott

Message 59 of 68
FURRYe38
Guru

Re: R8000 - DNS not functioning unless router bypassed.

I use PaleMoon. Smiley Very Happy

My Setup (Cable 1Gbps/50Mbps)>CAX80 v2.1.2.1(LAG Disabled)>RBK853 v4.6.3.16(AP) & RBK752 v4.6.5.14
Additional NG HW: C7800/CM1100/CM1200CM2000, Orbi CBK40, CBR750, RBK50(v22), SXR30(v110), R7000(v34), R7800(v84), R7960P(v82), EX7500/EX7700, XR450(v120) and WNHDE111
Message 60 of 68
ksb4
Aspirant

Re: R8000 - DNS not functioning unless router bypassed.

Hello All,

Glad to find this topic today.  Having what seems to be the same issue here with an R6300v2.  Latest firmware V1.0.4.8_10.0.77

It has been happening through many firmware revisions

 

This has been driving me nuts for many months.  I've tried everything on the router and client sides that I can think of.  One observation I've had that I have not seen here is that wireless clients get this when pinging when router has its flake out.  In the below 1.1 is the router.

 

This happened as I was typing this in this reply box, so it just dropped.

 

Pinging 192.168.1.1 with 32 bytes of data
Reply from 192.168.1.1: bytes=32 time=628ms TTL=64
Request timed out.
Reply from 192.168.1.1: bytes=32 time=2ms TTL=64
Request timed out.
Request timed out.
Request timed out.
Request timed out.
Request timed out.
Request timed out.
Request timed out.
Reply from 192.168.1.104: Destination host unreachable.
Request timed out.
Request timed out.
Reply from 192.168.1.104: Destination host unreachable.
Reply from 192.168.1.104: Destination host unreachable.
Reply from 192.168.1.104: Destination host unreachable.
Request timed out.
Reply from 192.168.1.104: Destination host unreachable.
Request timed out.
Request timed out.
Request timed out.
Reply from 192.168.1.104: Destination host unreachable.
Reply from 192.168.1.1: bytes=32 time=95ms TTL=64
Request timed out.
Request timed out.
Request timed out.
Request timed out.
Request timed out.
Reply from 192.168.1.104: Destination host unreachable.
Request timed out.
Request timed out.
Request timed out.
Reply from 192.168.1.104: Destination host unreachable.
Request timed out.
Request timed out.
Request timed out.

 

So, it knows the router is 1.1 but lost it.  Shortly after it believes the router is me - I am using the 1.104 device to send this post and used it for the ping.  If you notice, halfway through, it again goes back to 1.1 - and then back to .104.

Does anyone see similar results?

After an adapter reset I was able to post this.

Everything on these pages sounds exactly like what happens to me as it no longer resolves internal addresses or webpages.  Apologies if this does not signify the same issue, everyone.

Message 61 of 68
Tasoril
Aspirant

Re: R8000 - DNS not functioning unless router bypassed.

That doesn't seem to be exactly the same issue since when the issue exists on mine, there's no issue with the internal network, just external. At least for me. Though I'm hardwired, and not wireless. Anyone else in this thread using wireless who can confirm if this is what they're seein on wireless?

Message 62 of 68
ksb4
Aspirant

Re: R8000 - DNS not functioning unless router bypassed.

I lose connection to my server, I forgot to test if I can see the router or not.

When I go to the server, it is up and running just fine.  Server is wired.

Message 63 of 68
Chir
Tutor

Re: R8000 - DNS not functioning unless router bypassed.

This doesn't sound exactly like the issue I have, either.  You can test for the issue that is reported in this thread by pinging something by name.  If it doesn't resolve, change the DNS server on your client to a third party one such as 8.8.8.8.  Then try pinging by name again.  If it works, then you're experiencing the same problem.

 

If you are experiencing the issue, I recommend you open a case with netgear.  They closed mine becuase my internet has been stable enough that I haven't had the problem and couldn't reproduce it.  They insist the resolution was the firmware they made me upgrade to, but the only line item in the firmware patch notes was for the big security flaw that was found a while back.

Message 64 of 68
Motomofo
Aspirant

Re: R8000 - DNS not functioning unless router bypassed.

I've had this problem for 2 years now.  My original thread was from May 7, 2015.  I had a period where I got a decent cable modem/router from my new ISP and reluctanlty used it.  I had zero DNS issues with non-netgear routers (or cheaper netgear ones).  But now I'm moving and switching ISPs.  So now I'm back on my R8000 router and sure enough the DNS issues came back.   It was kind of sad to read through this thread and getting to the end of it with ZERO resolution from Netgear.  People describing the same details I did 2 years ago.  I even did an RMA on my R8000 and the replacement had the same issue.  If Netgear refuses to take this issue seriously then give us the feature to hand out the same DNS servers via DHCP that the router itself gets from the ISP.   It is not a solution to hardcode DNS addresses on all my clients.  Its fun to have friends over and say "Oh yeah use my WiFI but you have to hardcode the DNS servers". lol

Message 65 of 68
ilovetuna
Aspirant

Re: R8000 - DNS not functioning unless router bypassed.

I have had these exact problems on a D7000 over the last few weeks.

 

Reading the comments above i dont think there is much hope of a fix, time to buy a new router Smiley Sad 

Very sad as apart from this annoying feature it is fantastic.. 

Model: R7000|Nighthawk AC1900 Dual Band WiFi Router
Message 66 of 68
zerMATT
Aspirant

Re: R8000 - DNS not functioning unless router bypassed.

I've been suffering from this problem since day-1 with my R8000 as well. I would have to disconnect/reconnect several times a day when DNS would stop working, and changing DNS to static addresses in router config was ignored as others have pointed out.

 

I stumbled onto what appears to be a solution today though. My R8000 is setup as a router behind my AT&T U-Verse router, so that may be affecting the solution, but I wanted to post it here anyway in case it helps someone.

 

What I ended up doing was to enable IPv6 under Advanced Setup. I set it to "Auto Detect" at first, and when the router restarted, it switched itself to "6to4 Tunnel". Ever since that change, my DNS has been stable, and nslookups are using an IPv6 server address instead of the router's default DNS (10.0.0.1 in my case). I didn't enter an IPv6 DNS server address, but nslookup says it's using a local IPv6 address that must be one of my routers (although I can't seem to identify it).

 

I do still have alternate static IPv4 DNS addresses in my router config (4.2.2.1 and 8.8.8.8), but I don't know if that is part of the solution. What I do know is that nslookup is now using IPv6, and so far so good!!

Message 67 of 68
wirec
Aspirant

Re: R8000 - DNS not functioning unless router bypassed.

Same problem for me. I've had the R8000 for about 18 months now, as a router connected to a Comcast-supplied modem. There's been serious degradation of service over the past six months, to the point where I often switch off my phone's WiFi at home, because it's often unresponsive and LTE is more reliable.

A couple of weeks ago I upgraded the R8000's firmware and enabled Circle, to test out its parental control features. I haven't been sure the problems experienced since then are Circle-related, Google DNS-related, Comcast DNS-related or Netgear Router-related, but on many of our connected devices, both by LAN and WiFi, we've been getting DNS errors except when the devices themselves are manually set to use OpenDNS' servers. Using the automatic DNS assignment from the router often leads to a broken internet and manually setting Google's DNS on a device often leads to broken internet. I'm pretty sure prior to the recent upgrade and Circle-enabling that the router was also manually set to use Google's DNS, but my access to that has been disabled by Circle and it appears to be pulling Comcast's DNS server's from the modem.

I may soon disable Circle, even though I like its features, to see if these problems go away, but from this thread it sounds like I'm experiencing a Netgear issue. Comcast was struggling a lot right before I installed Circle - I was entertaining a switch to another provider and ran a speedtest that showed Comcast delivering 1/10 of the speed for which I'm paying. So, it wouldn't surprise me if a crummy connection from Comcast was triggering this bug in the router. How this is also hobbling my access to Google's DNS is another mystery, but OpenDNS seems unaffected.

 

 

Message 68 of 68
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