TP-Link TD-W9980 modem/router DNS server not working
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TP-Link TD-W9980 modem/router DNS server not working
27-05-2015 9:49 AM
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I recently moved to PN on fibre and installed my TD-W9980 router straightaway. It all worked fine (I upgraded the firmware to the Dec 2014 release when I got it, so the PN settings were in there) for a couple of months. Then a couple of weeks ago, I lost the internet. The DSL light is on, but no internet light. The problem seems to be with the DNS lookup - it won't resolve the DNS server. I have installed the PN router coupled to the OpenReach modem and everything works fine. However, I want to go back to the TP-Link modem/router because: the wifi signal from the PN router isn't very good; I paid a load of money for the TP-Link and want to use it; and it uses one less plug than the router/modem combo.
I'd be grateful for any advice for a tech/internet noob on how to rectify this problem. After research I have tried manually inputting the PN DNS settings (212.159.13.49/212.159.13.50) as well as the Google ones (8.8.8.8/8.8.4.4), but this made no difference.
Any advice gratefully received!
Cheers
Re: TP-Link TD-W9980 modem/router DNS server not working
27-05-2015 11:22 AM
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Try the 2 tests there.
This is what I get from the 1st test:
Quote
Test Internet surfing
Test xDSL Synchronization Pass
ATM OAM Segment Ping Pass
ATM OAM end to end Ping Pass
Test PPP Server connection Pass
Test authentication with ISP Pass
Test the assigned IP address Pass
Ping default gateway Pass
Ping primary Domain Name Server Pass
Test DNS Root Pass
Network Connection Status Inspect(NCSI) Pass
Also check the DHCP server settings:
Make sure it is
1. Enabled
2. has NO dns servers set (or the PN/Google ones)
From your client:
Open a command prompt: (cmd on windows terminal on Linux don't know mac)
enter:
nslookup <enter>
server <enter>
(this should show the dns servers set in the DHCP)
bbc.co.uk <enter>
(this should show something like this)
> bbc.co.uk
Server: 192.168.1.68
Address: 192.168.1.68#53
Non-authoritative answer:
Name: bbc.co.uk
Address: 212.58.244.18
Name: bbc.co.uk
Address: 212.58.246.103
Name: bbc.co.uk
Address: 212.58.246.104
Name: bbc.co.uk
Address: 212.58.244.20
>
Your dns server will be different. NB the <enter> are the enter/return key not a command.
If your client isn't showing the above or similar try:
> server 8.8.8.8
Default server: 8.8.8.8
Address: 8.8.8.8#53
> bbc.co.uk
Server: 8.8.8.8
Address: 8.8.8.8#53
Non-authoritative answer:
Name: bbc.co.uk
Address: 212.58.246.103
Name: bbc.co.uk
Address: 212.58.244.20
Name: bbc.co.uk
Address: 212.58.246.104
Name: bbc.co.uk
Address: 212.58.244.18
>
This sets Google to be the dns server for the next queries, then tries bbc.co.uk again.
Re: TP-Link TD-W9980 modem/router DNS server not working
27-05-2015 12:36 PM
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Phil
Using a TP-Link Archer VR600 modem-router.
Re: TP-Link TD-W9980 modem/router DNS server not working
27-05-2015 12:41 PM
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Re: TP-Link TD-W9980 modem/router DNS server not working
27-05-2015 1:42 PM
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However, we have not been told if there is a connected session or not and the internet light often (usually or almost invariably?) indicates the session status not DNS capability.
Phil
Using a TP-Link Archer VR600 modem-router.
Re: TP-Link TD-W9980 modem/router DNS server not working
27-05-2015 4:40 PM
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I have factory reset the modem multiple times and have also set it up from the start multiple times, so it's not a missing username/password. I have also tried using the TP-Link as a router connected to the OpenReach modem, but that came up with the same result.
I'll try your suggestions tonight. Unfortunately switching it over is a bit of a pain as everything is behind the TV cabinet, and if what I try doesn't work I don't have any internet access (except on the phone) to see what next steps to take until I set the PN router back up.
Re: TP-Link TD-W9980 modem/router DNS server not working
27-05-2015 5:52 PM
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Re: TP-Link TD-W9980 modem/router DNS server not working
27-05-2015 6:10 PM
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These are the LAN settings on the router: And the Basic status settings: Hopefully they give someone with more idea than me a clue as to what is going on.
Cheers
Re: TP-Link TD-W9980 modem/router DNS server not working
27-05-2015 6:13 PM
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Treble check the name is @plusdsl.net and the password is C0rrect.
Re: TP-Link TD-W9980 modem/router DNS server not working
28-05-2015 8:50 AM
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Phil
Using a TP-Link Archer VR600 modem-router.
Re: TP-Link TD-W9980 modem/router DNS server not working
28-05-2015 8:56 AM
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Thanks for your help. I'll be embarrassed if it is the password after all this...
Re: TP-Link TD-W9980 modem/router DNS server not working
28-05-2015 12:11 PM
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Re: TP-Link TD-W9980 modem/router DNS server not working
28-05-2015 12:18 PM
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I would update the f/w anyway as if you are on a G.INP cabinet then your speed will be ~10Mb down.
But check the logs, re-input your username/password and check the logs again. It will usually say something like invalid password from ppp.
Re: TP-Link TD-W9980 modem/router DNS server not working
29-05-2015 9:09 AM
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It's all working now fine. Thing is, I'm sure I never changed the password on the DSL, only on the account, and I'm sure the time separation between doing so and the internet going down was at least a couple of weeks. So not really sure why it happened when it did. Hey ho.
Thanks for all your help.
Re: TP-Link TD-W9980 modem/router DNS server not working
29-05-2015 9:15 AM
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If it helped click the thumb
If it fixed it click 'This fixed my problem'
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