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DNS Issue?

Jherhome1
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Posts: 10
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Registered: ‎29-05-2021

Re: DNS Issue?

‎04-06-2021 2:29 PM

Issue just occurred again and I ran another ipconfig report. Here's the results:

Windows IP Configuration

Host Name . . . . . . . . . . . . : JEROMMIL-3C84M
Primary Dns Suffix . . . . . . . : cisco.com
Node Type . . . . . . . . . . . . : Hybrid
IP Routing Enabled. . . . . . . . : No
WINS Proxy Enabled. . . . . . . . : No
DNS Suffix Search List. . . . . . : cisco.com
lan

Ethernet adapter Ethernet 2:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Cisco AnyConnect Secure Mobility Client Virtual Miniport Adapter for Windows x64
Physical Address. . . . . . . . . : 00-05-9A-3C-7A-00
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes

Ethernet adapter Ethernet:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Intel(R) Ethernet Connection (6) I219-LM
Physical Address. . . . . . . . . : 98-FA-9B-C5-60-A0
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes

Wireless LAN adapter Local Area Connection* 9:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Microsoft Wi-Fi Direct Virtual Adapter
Physical Address. . . . . . . . . : 04-ED-33-41-A5-AB
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes

Wireless LAN adapter Wi-Fi:

Connection-specific DNS Suffix . : lan
Description . . . . . . . . . . . : Intel(R) Wireless-AC 9560 160MHz
Physical Address. . . . . . . . . : 04-ED-33-41-A5-AA
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
Link-local IPv6 Address . . . . . : fe80::41a1:d3d2:d017:92e4%15(Preferred)
IPv4 Address. . . . . . . . . . . : 192.168.1.74(Preferred)
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Lease Obtained. . . . . . . . . . : 04 June 2021 13:49:59
Lease Expires . . . . . . . . . . : 05 June 2021 13:49:58
Default Gateway . . . . . . . . . : 192.168.1.254
DHCP Server . . . . . . . . . . . : 192.168.1.254
DHCPv6 IAID . . . . . . . . . . . : 251981107
DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-25-52-A5-26-98-FA-9B-C5-60-A0
DNS Servers . . . . . . . . . . . : 192.168.1.254
NetBIOS over Tcpip. . . . . . . . : Enabled

Ethernet adapter Bluetooth Network Connection:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Bluetooth Device (Personal Area Network)
Physical Address. . . . . . . . . : 04-ED-33-41-A5-AE
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes

Re the DHCP lease being long, I did have this set at 21 days as I saw this recommended in another thread. Now the router has been factory reset it's back to 1 day.

 

I also did some 'nslookup' tests and whilst none of the requests timed out, this came up:

nslookup bbc.co.uk
*** Default servers are not available
Server: UnKnown
Address: 127.0.0.1

 

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MisterW
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Re: DNS Issue?

‎04-06-2021 2:36 PM

@Jherhome1 did that nslookup complete and return an IP ?

Did all the other nslookups complete ?

Superusers are not staff, but they do have a direct line of communication into the business in order to raise issues, concerns and feedback from the community.

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Jherhome1
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Registered: ‎29-05-2021

Re: DNS Issue?

‎04-06-2021 2:56 PM

@MisterW that one didn't complete and return an IP address. It does now though that I've restarted the router.

The other nslookups returned this, which I assume means they completed:

Non-authoritative answer:
Name:    bbc.co.uk
Addresses:  2a04:4e42::81
          2a04:4e42:200::81
          2a04:4e42:400::81
          2a04:4e42:600::81
          151.101.0.81
          151.101.64.81
          151.101.128.81
          151.101.192.81

 

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Townman
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Registered: ‎22-08-2007

Re: DNS Issue?

‎04-06-2021 3:28 PM

The ipconfig reports look odd to me - but might be a red herring?

Wireless LAN adapter Wi-Fi:

   Connection-specific DNS Suffix  . : lan
   Description . . . . . . . . . . . : Intel(R) Wireless-AC 9560 160MHz
   Physical Address. . . . . . . . . : 04-ED-33-41-A5-AA
   DHCP Enabled. . . . . . . . . . . : Yes
   Autoconfiguration Enabled . . . . : Yes
   Link-local IPv6 Address . . . . . : fe80::41a1:d3d2:d017:92e4%15(Preferred)
   IPv4 Address. . . . . . . . . . . : 192.168.1.64(Preferred)
   Subnet Mask . . . . . . . . . . . : 255.255.255.0
   Lease Obtained. . . . . . . . . . : 03 June 2021 21:33:40
   Lease Expires . . . . . . . . . . : 25 June 2021 08:59:53
   Default Gateway . . . . . . . . . : 192.168.1.254
   DHCP Server . . . . . . . . . . . : 192.168.1.254
   DHCPv6 IAID . . . . . . . . . . . : 251981107
   DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-25-52-A5-26-98-FA-9B-C5-60-A0
   DNS Servers . . . . . . . . . . . : 192.168.1.254
   NetBIOS over Tcpip. . . . . . . . : Enabled

Wireless LAN adapter Wi-Fi:

Connection-specific DNS Suffix . : lan
Description . . . . . . . . . . . : Intel(R) Wireless-AC 9560 160MHz
Physical Address. . . . . . . . . : 04-ED-33-41-A5-AA
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
Link-local IPv6 Address . . . . . : fe80::41a1:d3d2:d017:92e4%15(Preferred)
IPv4 Address. . . . . . . . . . . : 192.168.1.74(Preferred)
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Lease Obtained. . . . . . . . . . : 04 June 2021 13:49:59
Lease Expires . . . . . . . . . . : 05 June 2021 13:49:58
Default Gateway . . . . . . . . . : 192.168.1.254
DHCP Server . . . . . . . . . . . : 192.168.1.254
DHCPv6 IAID . . . . . . . . . . . : 251981107
DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-25-52-A5-26-98-FA-9B-C5-60-A0
DNS Servers . . . . . . . . . . . : 192.168.1.254
NetBIOS over Tcpip. . . . . . . . : Enabled

 

I believe (which means I might be mistaken) that if "(preferred)" is attached to an IP address it means that the address is static in the DHCP service.

Therefore it seems odd that the device should have two different "preferred" addresses ... and I note that the DHCP lease period is now 24 hours, not 22 days.

In another browser tab, login into the Plusnet user portal BEFORE clicking the fault & ticket links

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MisterW
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Re: DNS Issue?

‎04-06-2021 5:02 PM

@Jherhome1 

that one didn't complete and return an IP address. It does now though that I've restarted the router.

The other nslookups returned this, which I assume means they completed:

that does indicate the problem is with the routers internal dns server

I'd suggest adding a post in this thread https://community.plus.net/t5/My-Router/DNS-Issues/td-p/1745510/page/8 and asking Bob for the trial firmware

Superusers are not staff, but they do have a direct line of communication into the business in order to raise issues, concerns and feedback from the community.

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