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New router issues

ian22red
Dabbler
Posts: 16
Registered: 10-03-2011

New router issues

Hi
I have purchased a Netgear R7000 Nighthawk router to use with my home set-up because my existing Netgear router DGND4000 doesn't support Chromecast.  So I though of using the 4000 as the ADSL2 router and the R7000 just as the router. 
The issue is that when I do this I can't connect  to my plusnet account.
I have setup the 4000 in modem (full bridge) mode
I can connect direcly from my Windows 7 PC to the 4000 and then out to the Internet using my ****@plusdsl.net account so I know the "modem" is working correctly but when I then connect the R7000 to the modem and configure it using my plusdsl account I get allocated a 172.21.44.** ip address and when connecting to the internet I can only get to a BT Wholesale web page on 62.6.38.125 saying the service provider can't accept my connection.
Any idea on what is going wrong?
Resetting my 4000 back to modem / router allows me to connect back fine to the Internet.  I am getting everything ready for a Fibre install next week (hopefully) so I want to ensure there isn't anything wrong with the R7000 before BT turn up.
Thanks
4 REPLIES
Community Veteran
Posts: 1,255
Thanks: 182
Fixes: 30
Registered: 13-08-2015

Re: New router issues

Have you changed the default IP addresses on the R700? By default they will have the same addresses as the DGN4000.
ian22red
Dabbler
Posts: 16
Registered: 10-03-2011

Re: New router issues

Sorry I don't really understand your question.  The R7000 is straight out the box.  By changing the 4000 to modem it removed the DHCP role.  The IP address range of the Netgears is 192.168 so I don't know where the 172 range is coming from.
williamobrien15
Newbie
Posts: 1
Registered: 08-10-2015

Re: New router issues

I have the same problem having just joined plusnet, But to get around the problem I dug out an old draytek 120 modem to replace the new router supplied, The draytek needs no programing and running ok with the night hawk.
ian22red
Dabbler
Posts: 16
Registered: 10-03-2011

Re: New router issues

Resolved.
I also tried my old Thompson router set it up as the modem connected the 7000 to it and was prompted about a clash of IP address range and that it was changing my 7000 to the 10.xx range.  This all then worked with the Thompson "modem" so I tried my 4000 and it also worked.  So even though the 4000 was in bridge mode there was obviously some issue with conflicting IPs