Tech Junky
Diamond Member
Because Google wants more data. Others do it as well. It's something they started doing -2 years ago to bypass network dns settings.
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Question Can't access Anandtech or the forums via wi-fi
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ns-1496.awsdns-59.org
ns-1685.awsdns-18.co.uk
ns-334.awsdns-41.com
ns-534.awsdns-02.net
seems dns hosted by AWS have some problems?
Code:
C:\Windows\system32>nslookup
Default Server: one.one.one.one
Address: 1.1.1.1
> server ns-1496.awsdns-59.org
Default Server: ns-1496.awsdns-59.org
Addresses: 2600:9000:5305:d800::1
205.251.197.216
> www.anandtech.com
Server: ns-1496.awsdns-59.org
Addresses: 2600:9000:5305:d800::1
205.251.197.216
*** ns-1496.awsdns-59.org can't find www.anandtech.com: No response from server
> forums.anandtech.com
Server: ns-1496.awsdns-59.org
Addresses: 2600:9000:5305:d800::1
205.251.197.216
*** ns-1496.awsdns-59.org can't find forums.anandtech.com: No response from server
> server ns-534.awsdns-02.net
*** Can't find address for server ns-534.awsdns-02.net: No response from server
Code:
C:\Windows\system32>nslookup
Default Server: one.one.one.one
Address: 1.1.1.1
> server ns-1685.awsdns-18.co.uk
Default Server: ns-1685.awsdns-18.co.uk
Addresses: 2600:9000:5306:9500::1
205.251.198.149
> www.anandtech.com
Server: ns-1685.awsdns-18.co.uk
Addresses: 2600:9000:5306:9500::1
205.251.198.149
*** ns-1685.awsdns-18.co.uk can't find www.anandtech.com: No response from server
> forums.anandtech.com
Server: ns-1685.awsdns-18.co.uk
Addresses: 2600:9000:5306:9500::1
205.251.198.149
*** ns-1685.awsdns-18.co.uk can't find forums.anandtech.com: No response from server
Last edited:
ch33zw1z
Lifer
it's 192.168.1.1, so default SOHO config for DNS requests. But that's pointed at whatever the WAN DNS is for the ISP's config. 95ms seems very high for a response, even for wifi. I would definitely be getting some testing via LAN and with manual DNS on the wifi dev's. Could just be the router is getting flaky.
since were posting dns request results 🙂 :
nslookup forums.anandtech.com
Server: pi.hole
Address: 192.168.1.31
Non-authoritative answer:
Name: forums.anandtech.com
Address: 45.32.83.182
nslookup www.anandtech.com
Server: pi.hole
Address: 192.168.1.31
Non-authoritative answer:
Name: www.anandtech.com
Addresses: 65.8.20.2
65.8.20.79
65.8.20.6
65.8.20.111
my upstream is set to quad9 for my pihole's, no IPv6 selected
Last edited:
Your IP addresses for www.anandtech.com were different from mine and @Tech Junky
C:\Windows\system32>nslookup
Default Server: one.one.one.one
Address: 1.1.1.1
> www.anandtech.com
Server: one.one.one.one
Address: 1.1.1.1
Non-authoritative answer:
Name: www.anandtech.com
Addresses: 18.164.154.27
18.164.154.86
18.164.154.43
18.164.154.108
> server 9.9.9.9
Default Server: dns9.quad9.net
Address: 9.9.9.9
> www.anandtech.com
Server: dns9.quad9.net
Address: 9.9.9.9
Non-authoritative answer:
Name: www.anandtech.com
Addresses: 18.164.154.43
18.164.154.27
18.164.154.108
18.164.154.86
Last edited:
ch33zw1z
Lifer
Most likely due to our location(s) and path to the destination (and how the hosting company is balancing the load). I can point directly at google DNS and receive the same results
nslookup forums.anandtech.com 8.8.8.8
Server: dns.google
Address: 8.8.8.8
Non-authoritative answer:
Name: forums.anandtech.com
Address: 45.32.83.182
nslookup www.anandtech.com 8.8.8.8
Server: dns.google
Address: 8.8.8.8
Non-authoritative answer:
Name: www.anandtech.com
Addresses: 65.8.20.111
65.8.20.6
65.8.20.2
65.8.20.79
You can use tracert (or traceroute in linux) to see your path to the server. my tracert to forums.anandtech.com is 29 hops long and ends here:
29 79 ms 78 ms 79 ms 45.32.83.182.vultrusercontent.com [45.32.83.182]
tracert to www.anandtech.com is taking a long time, lots of *'s lol, but ends here (only 15 hops)
15 15 ms 14 ms 14 ms server-65-8-20-6.bos50.r.cloudfront.net [65.8.20.6]
So www.anandtech.com at least has 8 IP addresses.
18.164.154.x are on west coast and 65.8.20.x are on east coast, all hosted on Cloudfront (Amazon AWS)
My question still remains why anandtech.com name servers won't return IP addresses of www.anandtech.com & forums.anandtech.com ?
18.164.154.x are on west coast and 65.8.20.x are on east coast, all hosted on Cloudfront (Amazon AWS)
My question still remains why anandtech.com name servers won't return IP addresses of www.anandtech.com & forums.anandtech.com ?
Last edited:
ch33zw1z
Lifer
nslookup not returning all ip addresses for host
I'm working on a program that tracks when search engines cannot find important files on my server. From my computer I typed: nslookup google.com and I received 11 IP addresses in return all begi...
It’s all based on location
Found more IP addresses for www.anandtech.com using Google Dig Tool
toolbox.googleapps.com
raw view
Guess you have no way to tell exactly how many IP addresses a website has unless you are the (CDN) ISP provider?
Dig (DNS lookup)
raw view
Code:
id 22915
opcode QUERY
rcode NOERROR
flags QR RD RA
;QUESTION
www.anandtech.com. IN A
;ANSWER
www.anandtech.com. 60 IN A 3.161.163.6
www.anandtech.com. 60 IN A 3.161.163.62
www.anandtech.com. 60 IN A 3.161.163.68
www.anandtech.com. 60 IN A 3.161.163.98
;AUTHORITY
;ADDITIONALGuess you have no way to tell exactly how many IP addresses a website has unless you are the (CDN) ISP provider?
(On Linux) I queried the four AWS authoritative nameservers earlier and they all worked for www dot anandtech.com. You can rest assured if there was an issue with AWS DNS, a LOT of people would have noticed by now.
A 5-year-old router is probably WiFi 5, and should still be fine. @BoomerD are you saying that the problem has returned? You still haven't told us if you tried different DNS options (and that can be done at the browser level, or at the OS level). IF public DNS resolvers work, that change can be applied at the router level but I'd start off on one of the affected devices.
It's pretty bizarre that your hardwired PC works, but your devices on WiFi don't. Originally you said the PC is connected to the modem, but I suspect you mean to the Netgear router. (for troubleshooting, it's a meaningful difference)
BoomerD
No Lifer
OK, so here's more weirdness...but it might explain stuff to youse who know this stuff.
I have 2 wifi routers connected to my modem. One (Netgear R6700) I use strictly as an ethernet switch...and the wifi is turned off, the other (Netgear R8000) is just for wifi. (seems to be a better wifi router, better signal, but has been kind of sketchy for ethernet.)
If I turn ON the wi-fi on the R6700, AT seems to connect just fine...but the R8000 will NOT connect to the AT sites.
I have 2 wifi routers connected to my modem. One (Netgear R6700) I use strictly as an ethernet switch...and the wifi is turned off, the other (Netgear R8000) is just for wifi. (seems to be a better wifi router, better signal, but has been kind of sketchy for ethernet.)
If I turn ON the wi-fi on the R6700, AT seems to connect just fine...but the R8000 will NOT connect to the AT sites.
BoomerD
No Lifer
That would be my first guess (do any home cable modems have 2 LAN ports, and why?). But doesn't explain why just two Web properties don't work (the Forums are hosted on Vultr, not AWS).
Generally a bad idea to run 2 wireless routers in a house, unless you have a mesh system or repeater topology to increase range. I'd get rid of the R6700, even if that meant I had to buy a $16 TP-Link switch.
May be this can help.
www.linkedin.com
trace-isp-routes-idrees
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ch33zw1z
Lifer
Yes modem as well though.
That’s good photo, need more from other devices connected to the other device
When u run ipconfig, use the /all option for complete output
Last edited:
BoomerD
No Lifer
Cable into a Netgear modem with 2 ethernet outputs. One to the R8000 for wifi. One to the R7600 for an ethernet switch. Wifi has been turned off on that one for almost 2 years.Is the problem double NAT? I thought that only happened when you run from one router to another...with wifi turned on in both.
NONE of this explains why rhe problem started about 10:00 am yesterday. Everything has been hunky-dory until then.
NONE of this explains why rhe problem started about 10:00 am yesterday. Everything has been hunky-dory until then.
sdifox
No Lifer
so unplug the 7600 and see how it goes.
BoomerD
No Lifer
That will kill my ethernet connections…and the various cables aren’t long enough to reach the R8000…yeah, I know…I could just move the R8000…but, dammit, I’m lazy.
sdifox
No Lifer
err it's to test, you can move it once...
BoomerD
No Lifer
Yeah, I know...but if I had the wifi turned off on the R6700, how would that interfere with the R8000?
sdifox
No Lifer
logic doesn't apply in your situation, so don't even try. Some routers don't have an AP mode. But it might be serving out dhcp nonetheless. Some even disable AP mode when the WiFi is turned off.
Last edited:
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