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Forum Discussion
mulberryhill
Jul 03, 2022Aspirant
r7000p - not connecting to wifi with c3000z
I have a new modem from CenturyLink - a C3000Z. However, my router now will not connect to the internet with that modem. All I did was unplug the old modem and plug in the new one. If I plu...
FURRYe38
Jul 11, 2022Guru - Experienced User
Your ISP Modem already has a built in router and wifi. This would be a double NAT (two router) condition which isn't recommended. This would be a double NAT condition which isn't recommended. https://kb.netgear.com/30186/What-is-Double-NAT
https://kb.netgear.com/30187/How-to-fix-issues-with-Double-NAT
Couple of options,
1. Configure the modem for transparent bridge or modem only mode. Then use the NG router in router mode. You'll need to contact the ISP for help and information in regards to the modem being bridged correctly.
2. If you can't bridge the modem, disable ALL wifi radios on the modem, configure the modems DMZ/ExposedHost or IP Pass-Through for the IP address the NG router gets from the modem. https://kb.netgear.com/25891/DMZ-on-NETGEAR-routers
https://kb.netgear.com/24086/How-do-I-set-up-a-default-DMZ-server-on-my-Nighthawk-router
3. Or disable all wifi radios on the modem and connect the NG router to the modem, LAN to LAN configure AP mode on the NG router.
https://kb.netgear.com/24104/How-do-I-change-my-Nighthawk-router-to-AP-mode-after-I-ve-already-run-setup
https://kb.netgear.com/26765/Disabled-Features-on-the-Router-when-set-to-AP-Mode
- mulberryhillJul 14, 2022Aspirant
Thank you for the answer. I will look into all of that.
But what is just baffling me is why I can't just "plug and play" the new modem for the other one.
And since I can't - what is the setting - on either the NG r7000p or the modem that needs to be looked at and changed.
I've spent some time trying to compare the old modem vs. the new modem to see what might be different, but it look similar. Nothing is jumping out at me. I see the difficulties as you've described.
But, since the modem is in another building, we do use the wifi capability of it and I'm reluctant to shut that off. For example, I can be in the house connected to the NG wifi - but then head out to the shop and connect to the modem wifi when needed.
Thank you for all your help!
- michaelkenwardJul 15, 2022Guru - Experienced User
mulberryhill wrote:
But what is just baffling me is why I can't just "plug and play" the new modem for the other one.
Twice now people have explained that you cannot simply put two routers together and expect things to go smoothly. Two routers are rarely amenable to "plug and play".
Did you ever tell us what this "old modem" is? I can't see it.
In general, it is hard to follow the layout that you describe. For example, you said:
Our DSL line comes into one building on our property - however we have run a line into our house and connected that line to the r7000p. The line coming into our house is connected to the WAN/LAN (I believe) port on the old modem.
There are too many "lines" there for me to follow what they are.
I assume that the one into the house is the phone line. But what is this "line into our house" that you have connected to the R7000P? And how do you connect it to the modem?
If this is an Ethernet connection that runs from the modem to the R7000P, then the result depends on what this modem is.
This "WAN/LAN port on the old modem" again depends on what the modem is. If it is just a modem, it won't be a WAN port. It is the port that connects tour modem to the local LAN.
If it is the only port on the modem, then that is probably just a modem. If it is one of a number of ports, usually four, it is probably a modem router.
But, since the modem is in another building, we do use the wifi capability of it and I'm reluctant to shut that off. For example, I can be in the house connected to the NG wifi - but then head out to the shop and connect to the modem wifi when needed.If your modem is modem/router – it has to be to provide wifi – the obvious solution is to put the R7000P into wireless access point (AP) mode.
Do not mess around with bridge mode on the modem/router. That will just disable the wifi from the C3000Z. Sounds like you want to use that.
All the other stuff, like "DMZs", is equally messy, not necessary and could make your network unusable.
While your description isn't that clear to me, as I understand it you want to use wifi from both the C3000Z and the R7000P. If so, here's the simple solution:
- use C3000Z to connect to Internet
- set up R7000P as AP
- run cable from C3000Z to R7000P
- turn off C3000Z and R7000P
- turn on C3000Z
- wait for it to get an Internet connection
- turn on R7000P
To set up the AP thing on the R7000P, visit the support pages:
Support | NETGEAR
Feed in your model number and check the documentation for your hardware.
Check the section in the manual Use the Router as a WiFi Access Point.When you have got that working you can start to worry about the other things that you have thrown into the mix, like the smtp server.
- mulberryhillJul 16, 2022Aspirant
Thank you!!
The NGr7000p was already setup as an AP when using the old modem of c1100t - so that was already there.
However, your sequence of off's and on's is what ultimately did it when I replaced the c1100t for c3000z! In all of the turning off and on that I did trying to get this all to work - apparently I never did that sequence.
The old router is a centurylink c1100t. It has a wan/lan port on the back which our internet line was plugged into. However on the new modem c3000z it couldn't use that port and I had to plug it into one of the ethernet ports.
Somehow I missed that sequencing in other posts if it was there - trying to follow all of the terminology. I just slowed down and tried to let my frustrations get in the way this morning.
Again - thank you to everyone who tried to help me!!