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RAX20, issues with DHCP... some devices losing their IP after a couple of days
Hello, I'm facing an annoying issue with my RAX20 router. Once every few days, some of the devices (a Samsung TV and the three Mitsubishi air conditioning units) lose permanently their IPs and even...
Hi,
I didn't apply a factory reset, thank you for the suggestion: I'll try it.
One importan thing that I forgot to mention in the original post...
The RAX20 router is currently releaseing addresses in the 10.0.0.x subnet (if I remember well, this was suggested as the default when I first setup the router).
My home modem is releasing addresses in the 192.168.1.x subnet.
The two devices use two ddifferent SSIDs and I need to have both Wifi networks enabled (they cover different areas in my house.
I'm definitely not a networking expert, but I fear that if I set both the modem and the RAX to issue addresses on 192.1.68.1.x (both with their respective DHCP servers) this might create conflicts.... or will the fact that I'll use different SSIDs avoid any problem?
If your seeing 10.xomething on the LAN side then the RAX is connected to something upstream that is already using 192.168.1.1 and the RAX will see this and avoid it by auto changing to 10.something.
What is the Mfr and model# of the Internet Service Providers modem/ONT the NG router is connected too?
If your seeing 10.xomething on the LAN side then the RAX is connected to something upstream that is already using 192.168.1.1 and the RAX will see this and avoid it by auto changing to 10.something.
Yes FURRYe38, this is exactly my situation. To recap:
- The home modem is connected to my FTTH link.
- The modem is manufactured by ZTE, it has been provided by my ISP provider (Fastweb, an Italian company, I'm living in Italy)
- The modem has DHCP enabled and issues addressess starting from 192.168.1.50
- The RAX20 is connected to the modem via Wifi, it receives the 192.168.1.51
- The RAX20 has DHCP enabled and issues addresses in the 10.0.0.x range to all connected devices (inlcludes those that are repeatedly "losing their IPs" and failing to reconnect).
The details on the Modem model are:
Manufaturerer ZTE
Model number: H388Q V7.0
Firmware revision H388Q_V7.0.0_R1_FW-25_ZTE
Software version: 1.0.1b
Not sure if this information will help you. Fastweb is a local ISP provider here in Italy, the modem firmware is probably customized by them.
I've seen that It allows to disable its DHCP feature... would this help?
THeOrbix wrote:
- The modem is manufactured by ZTE, it has been provided by my ISP provider
That smells like a modem/router. ZTE makes plenty of those.
You should have been asked for its make and model before now. What is it?
The symptoms you describe suggest a clash of two routers.
Two routers on your network can cause headaches. For example, you can end up with local address problems. Among other things, the other router can misdirect addresses that the Netgear router usually handles, such as routerlogin.net or the usual IP address for a router, 192.168.1.1.
This explains some of the other drawbacks.
What is Double NAT? | Answer | NETGEAR Support
Unless you have specific reasons for using two routers – to create two separate networks for example – it is often easier to use just one router and then to set up the second router as a wifi access point. Netgear advises this, as does just about every site you will visit.
It may be possible to put the modem/router into modem only (bridge) mode and then to use the second device as the router. But to advise on that we need to know more about this "modem".OK,
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/20927/How-do-I-change-my-NETGEAR-router-to-AP-mode
Try option # 2 first with the RAX.Or go for easy and try option #3
THeOrbix wrote:
If your seeing 10.xomething on the LAN side then the RAX is connected to something upstream that is already using 192.168.1.1 and the RAX will see this and avoid it by auto changing to 10.something.
Yes FURRYe38, this is exactly my situation. To recap:
- The home modem is connected to my FTTH link.
- The modem is manufactured by ZTE, it has been provided by my ISP provider (Fastweb, an Italian company, I'm living in Italy)
- The modem has DHCP enabled and issues addressess starting from 192.168.1.50
- The RAX20 is connected to the modem via Wifi, it receives the 192.168.1.51
- The RAX20 has DHCP enabled and issues addresses in the 10.0.0.x range to all connected devices (inlcludes those that are repeatedly "losing their IPs" and failing to reconnect).
Yes the ZTE is a modem/router.
The reason why I was keeping its Wifi turned on both on the modem and on the RAX is that the modem provides Wifi coverage in some areas of my house where the RAX signal is weaker (although they are positioned very close and in theory the RAX should have a better Wifi hardware with external antennas, for some reasons the ZTE deivers a cleaner signal in one of the bedrooms and a bathrom.
Anyway, what of the three options you suggested should be the best one?
I know how to disable Wifi and DHCP on the ZTE modem, but I don't know how it can be confitured to be a "transparent bridge"... its online documentation only describes the basic setup operations and although I can easily look inside each page of its web admin UI I don't know exactly which kind of option I should be looking for...
BTW: thank you in avance for your suggestions and the time you're speding on my issue. Truly appreciated.
