OpenDNS stops working regularly
OpenDNS stops working on a regular basis. I have to reset my router in order for everything to start working
again. This happens every day, sometimes multiple times per day and without any apparent reason. In fact, it’s not working more than it is working. I can check the status on https://welcome.opendns.com/ to see when it stops working or after I restart the router and it starts working again.
Is there a problem with my OpenDNS software? My router seems to be set up correctly. It seems like somethng is not properly routing the DNS info.
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"Is there a problem with my OpenDNS software? "
No, the Updater is just to keep your IP address information registered at OpenDNS, so that your dashboard settings can take effect. This is unrelated to testing at http://welcome.opendns.com/ to see if your DNS traffic goes to OpenDNS.
In your screen shot you show only IPv4 settings. What is with the IPv6 settings?
When the problem occurs again, copy & paste the complete plain text output of the following diagnostic commands to here:
nslookup -type=txt debug.opendns.com. 208.67.220.220
nslookup -type=txt which.opendns.com.
nslookup whoami.akamai.net.
netsh interface ipv4 show config (Windows only)
ifconfig -a (Mac OSX and Linux)I may see then what your problem is.
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If you enable IPv6 and want your dashboard settings taking effect, you must use from the following OpenDNS resolver addresses: ::ffff:d043:dede ::ffff:d043:dcdc ::ffff:d043:dedc ::ffff:d043:dcde
The listed addresses in your screen shot do not use your dashboard settings at all, but are pure DNSv6 resolvers, as documented.
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Server: resolver2.opendns.com
Address: 208.67.220.220Non-authoritative answer:
debug.opendns.com text ="server m29.dfw"
debug.opendns.com text ="flags 20 0 50 39504007D0000001000"
debug.opendns.com text ="originid 104758727"
debug.opendns.com text ="actype 2"
debug.opendns.com text ="bundle 10358765"
debug.opendns.com text ="source 66.169.110.244:63219"
----
Server: rns01.charter.com
Address: 2607:f428:ffff:ffff::1Non-authoritative answer:
which.opendns.com text ="I am not an OpenDNS resolver."
----
Server: rns01.charter.com
Address: 2607:f428:ffff:ffff::1Non-authoritative answer:
Name: whoami.akamai.net
Address: 68.114.44.107----
Configuration for interface "Ethernet"
DHCP enabled: Yes
IP Address: 192.168.1.15
Subnet Prefix: 192.168.1.0/24 (mask 255.255.255.0)
Default Gateway: 192.168.1.1
Gateway Metric: 0
InterfaceMetric: 25
DNS servers configured through DHCP: 192.168.1.1
Register with which suffix: Primary only
WINS servers configured through DHCP: NoneConfiguration for interface "Wi-Fi"
DHCP enabled: Yes
InterfaceMetric: 25
DNS servers configured through DHCP: 192.168.1.1
Register with which suffix: Primary only
WINS servers configured through DHCP: NoneConfiguration for interface "Local Area Connection* 2"
DHCP enabled: Yes
InterfaceMetric: 25
DNS servers configured through DHCP: None
Register with which suffix: Primary only
WINS servers configured through DHCP: NoneConfiguration for interface "Loopback Pseudo-Interface 1"
DHCP enabled: No
IP Address: 127.0.0.1
Subnet Prefix: 127.0.0.0/8 (mask 255.0.0.0)
InterfaceMetric: 75
Statically Configured DNS Servers: None
Register with which suffix: Primary only
Statically Configured WINS Servers: None -
I did follow your instructions, but it still didn't seem to be working. I think the router is deciding when to use the assigned DNS servers and when to use the default servers.
Even after a fresh restart, OpenDNS seems to be working properly from my desktop (hardwired to the router), but does not work on either my tablet or phone, connected via wifi.
I included the screenshot showing ipv6 settings.
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Here are the results of those commands after restarting the router:
Server: resolver2.opendns.com
Address: 208.67.220.220Non-authoritative answer:
debug.opendns.com text ="server m25.dfw"
debug.opendns.com text ="flags 20 0 50 39504007D0000001000"
debug.opendns.com text ="originid 104758727"
debug.opendns.com text ="actype 2"
debug.opendns.com text ="bundle 10358765"
debug.opendns.com text ="source 66.169.110.244:61236"
----
Server: HG6Box
Address: 192.168.1.1Non-authoritative answer:
which.opendns.com text ="m49.dfw"
----
Server: HG6Box
Address: 192.168.1.1Non-authoritative answer:
which.opendns.com text ="m49.dfw"
C:\Users\Josh>nslookup whoami.akamai.net
Server: HG6Box
Address: 192.168.1.1Non-authoritative answer:
Name: whoami.akamai.net
Addresses: 2620:0:cc6::167
204.194.238.169----
Configuration for interface "Ethernet"
DHCP enabled: Yes
IP Address: 192.168.1.15
Subnet Prefix: 192.168.1.0/24 (mask 255.255.255.0)
Default Gateway: 192.168.1.1
Gateway Metric: 0
InterfaceMetric: 25
DNS servers configured through DHCP: 192.168.1.1
Register with which suffix: Primary only
WINS servers configured through DHCP: NoneConfiguration for interface "Wi-Fi"
DHCP enabled: Yes
InterfaceMetric: 25
DNS servers configured through DHCP: 192.168.1.1
Register with which suffix: Primary only
WINS servers configured through DHCP: NoneConfiguration for interface "Local Area Connection* 2"
DHCP enabled: Yes
InterfaceMetric: 25
DNS servers configured through DHCP: None
Register with which suffix: Primary only
WINS servers configured through DHCP: NoneConfiguration for interface "Loopback Pseudo-Interface 1"
DHCP enabled: No
IP Address: 127.0.0.1
Subnet Prefix: 127.0.0.0/8 (mask 255.0.0.0)
InterfaceMetric: 75
Statically Configured DNS Servers: None
Register with which suffix: Primary only
Statically Configured WINS Servers: None -
If I unplug my desktop and use the wifi, OpenDNS doesn't work. I ran those commands again and got the following results:
Server: resolver2.opendns.com
Address: 208.67.220.220Non-authoritative answer:
debug.opendns.com text ="server m33.dfw"
debug.opendns.com text ="flags 20 0 50 39504007D0000001000"
debug.opendns.com text ="originid 104758727"
debug.opendns.com text ="actype 2"
debug.opendns.com text ="bundle 10358765"
debug.opendns.com text ="source 66.169.110.244:56919"
----
Server: rns01.charter.com
Address: 2607:f428:ffff:ffff::1Non-authoritative answer:
which.opendns.com text ="I am not an OpenDNS resolver."
----
Server: rns01.charter.com
Address: 2607:f428:ffff:ffff::1Non-authoritative answer:
Name: whoami.akamai.net
Address: 68.114.44.103----
Configuration for interface "Ethernet"
DHCP enabled: Yes
IP Address: 192.168.1.15
Subnet Prefix: 192.168.1.0/24 (mask 255.255.255.0)
Default Gateway: 192.168.1.1
Gateway Metric: 0
InterfaceMetric: 5
DNS servers configured through DHCP: 192.168.1.1
Register with which suffix: Primary only
WINS servers configured through DHCP: NoneConfiguration for interface "Local Area Connection* 2"
DHCP enabled: Yes
InterfaceMetric: 25
DNS servers configured through DHCP: None
Register with which suffix: Primary only
WINS servers configured through DHCP: NoneConfiguration for interface "Wi-Fi"
DHCP enabled: Yes
IP Address: 192.168.1.10
Subnet Prefix: 192.168.1.0/24 (mask 255.255.255.0)
Default Gateway: 192.168.1.1
Gateway Metric: 0
InterfaceMetric: 35
DNS servers configured through DHCP: 192.168.1.1
Register with which suffix: Primary only
WINS servers configured through DHCP: NoneConfiguration for interface "Loopback Pseudo-Interface 1"
DHCP enabled: No
IP Address: 127.0.0.1
Subnet Prefix: 127.0.0.0/8 (mask 255.0.0.0)
InterfaceMetric: 75
Statically Configured DNS Servers: None
Register with which suffix: Primary only
Statically Configured WINS Servers: None----
So, it would seem that my router is not using OpenDNS for wireless connections but is using it for wired connections. To add further confusion, it seems to stop using OpenDNS for wired connections at random, only to be resolved by resetting the router.
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Well, the main reason for issues seems to be your dual-stack (IPv4 + IPv6) internet connection. Sometimes your components use IPv4, sometimes IPv6, the latter randomly(?) to OpenDNS and to Charter, to send out your DNS traffic. This can be your computer (or other end devices) or your router or both participating in this inconsistency. It seems you need to concentrate on your IPv6.
Everytime it does not work your computer uses Charter's DNSv6 service, not OpenDNS:
Server: rns01.charter.com
Address: 2607:f428:ffff:ffff::1See here what is being configured manually or via DHCP:
netsh interface ipv6 show addresses
netsh interface ipv6 show dnsservers
nslookup whoami.akamai.net.With the first command you should see public IPv6 addresses for the interface to the router (wired or wireless) to confirm that you have IPv6 connectivity at this time. And with the second command you should see only IPv6 DNS addresses you have configured on the router and/or maybe your router's link-local IPv6 address, having been obtained via DHCP, not Charter's and not any other. The third command shows what DNS service your computer is using and what recursive DNS service (e.g. OpenDNS or Charter, DNSv4 or DNSv6) is seen by Akamai.
At the end you may be forced to disable IPv6 connectivity on the router, but you will lose the ability to reach IPv6-only domains then.
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Running the commands while connected to the ethernet port, I get the following:
Interface 9: Ethernet
Addr Type DAD State Valid Life Pref. Life Address
--------- ----------- ---------- ---------- ------------------------
Other Preferred infinite infinite fe80::fd2d:a74b:f0a1:3d6b%9Interface 4: Wi-Fi
Addr Type DAD State Valid Life Pref. Life Address
--------- ----------- ---------- ---------- ------------------------
Dhcp Deprecated infinite infinite 2600:6c56:417f:ebf3:0:ac92:42b1:27be
Other Deprecated infinite infinite fe80::b5ba:3869:3f33:9755%4Interface 1: Loopback Pseudo-Interface 1
Addr Type DAD State Valid Life Pref. Life Address
--------- ----------- ---------- ---------- ------------------------
Other Preferred infinite infinite ::1Interface 6: Local Area Connection* 2
Addr Type DAD State Valid Life Pref. Life Address
--------- ----------- ---------- ---------- ------------------------
Other Deprecated infinite infinite fe80::3d91:cd0:3ded:ad65%6Interface 7: Teredo Tunneling Pseudo-Interface
Addr Type DAD State Valid Life Pref. Life Address
--------- ----------- ---------- ---------- ------------------------
Public Preferred infinite infinite 2001:0:4137:9e76:c99:2922:bd56:910b
Other Preferred infinite infinite fe80::c99:2922:bd56:910b%7----
Configuration for interface "Ethernet"
DNS servers configured through DHCP: 2607:f428:ffff:ffff::1
2607:f428:ffff:ffff::2
Register with which suffix: Primary onlyConfiguration for interface "Local Area Connection* 2"
DNS servers configured through DHCP: fec0:0:0:ffff::1%1
fec0:0:0:ffff::2%1
fec0:0:0:ffff::3%1
Register with which suffix: Primary onlyConfiguration for interface "Wi-Fi"
DNS servers configured through DHCP: None
Register with which suffix: Primary onlyConfiguration for interface "Loopback Pseudo-Interface 1"
Statically Configured DNS Servers: fec0:0:0:ffff::1%1
fec0:0:0:ffff::2%1
fec0:0:0:ffff::3%1
Register with which suffix: Primary onlyConfiguration for interface "Teredo Tunneling Pseudo-Interface"
Statically Configured DNS Servers: None
Register with which suffix: None----
DNS request timed out.
timeout was 2 seconds.
Server: UnKnown
Address: 2607:f428:ffff:ffff::1DNS request timed out.
timeout was 2 seconds.
DNS request timed out.
timeout was 2 seconds.
DNS request timed out.
timeout was 2 seconds.
DNS request timed out.
timeout was 2 seconds.
*** Request to UnKnown timed-out -
Running these commands over wifi (which is where it's not working), I get the following:
Interface 9: Ethernet
Addr Type DAD State Valid Life Pref. Life Address
--------- ----------- ---------- ---------- ------------------------
Other Deprecated infinite infinite fe80::fd2d:a74b:f0a1:3d6b%9Interface 4: Wi-Fi
Addr Type DAD State Valid Life Pref. Life Address
--------- ----------- ---------- ---------- ------------------------
Dhcp Preferred 7h58m58s 7h58m58s 2600:6c56:417f:ebf3:0:7415:ff2f:22d1
Dhcp Preferred infinite infinite 2600:6c56:417f:ebf3:0:ac92:42b1:27be
Other Preferred infinite infinite fe80::b5ba:3869:3f33:9755%4Interface 1: Loopback Pseudo-Interface 1
Addr Type DAD State Valid Life Pref. Life Address
--------- ----------- ---------- ---------- ------------------------
Other Preferred infinite infinite ::1Interface 6: Local Area Connection* 2
Addr Type DAD State Valid Life Pref. Life Address
--------- ----------- ---------- ---------- ------------------------
Other Deprecated infinite infinite fe80::3d91:cd0:3ded:ad65%6Interface 7: Teredo Tunneling Pseudo-Interface
Addr Type DAD State Valid Life Pref. Life Address
--------- ----------- ---------- ---------- ------------------------
Public Preferred infinite infinite 2001:0:5ef5:79fb:3491:30f9:bd56:910b
Other Preferred infinite infinite fe80::3491:30f9:bd56:910b%7----
Configuration for interface "Ethernet"
DNS servers configured through DHCP: None
Register with which suffix: Primary onlyConfiguration for interface "Local Area Connection* 2"
DNS servers configured through DHCP: fec0:0:0:ffff::1%1
fec0:0:0:ffff::2%1
fec0:0:0:ffff::3%1
Register with which suffix: Primary onlyConfiguration for interface "Wi-Fi"
DNS servers configured through DHCP: 2607:f428:ffff:ffff::1
2607:f428:ffff:ffff::2
Register with which suffix: Primary onlyConfiguration for interface "Loopback Pseudo-Interface 1"
Statically Configured DNS Servers: fec0:0:0:ffff::1%1
fec0:0:0:ffff::2%1
fec0:0:0:ffff::3%1
Register with which suffix: Primary onlyConfiguration for interface "Teredo Tunneling Pseudo-Interface"
Statically Configured DNS Servers: None
Register with which suffix: None----
Server: rns01.charter.com
Address: 2607:f428:ffff:ffff::1Non-authoritative answer:
Name: whoami.akamai.net
Address: 68.114.44.103So, obviously it's not using the correct DNS servers for wifi, but why?
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It seems you don't have IPv6 at all when connected via ethernet. But you get DNSv6 server addresses via DHCP from the router nevertheless:
Configuration for interface "Ethernet"
DNS servers configured through DHCP: 2607:f428:ffff:ffff::1
2607:f428:ffff:ffff::2Because you do not have IPv6 connectivity, you also cannot send DNS queries to these DNS server addresses. They time out.
Whereas when connected to WiFi, you do have IPv6 connectivity, but you get DNS server address propagated via DHCP from the router which you did not configure, i.e. not the OpenDNS ones, but the same as via ethernet:
Configuration for interface "Wi-Fi"
DNS servers configured through DHCP: 2607:f428:ffff:ffff::1
2607:f428:ffff:ffff::2It looks like that your router does not handle these scenarios correctly. It may be a bundle of firmware bugs. I suggest you check the computer settings for IPv6 at the ethernet and the WiFi interfaces. If this is fine, contact your router supplier. As a workaround, it may help to disable IPv6 altogether, but you cannot reach IPv6-only sites anymore.
"I don't know if OpenDNS has a dynamic DNS client that could help, but the router has other settings (normally this is not enabled)."
This is a different topic, unrelated to using OpenDNS. It is just to keep your IPv4 address information updated at OpenDNS. In order to be able using your router, it must have at least one of OpenDNS, DNS-O-Matic or "custom / user defined" from the "Provider" drop-down list. And sure, OpenDNS also provides update clients for Windows and Mac OS X.
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