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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...
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).
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.
Well it's recommended to run on wifi signal source only. However if you feel you need additional wifi coverage, you could run both, just would need to adjust the channels on each unit to be far apart. So Modem use channel 11 and 149. The RAX set channel 1 and 40.
I would probably make things simple for your needs and configure AP mode on the RAX router and use the modem router for your host router needs.
Well, maybe I can try to turn off the Wifi on the Modem and connect the RAX to the modem using a network cable (they're few feets apart).
Maybe with less Wifi interferences (although I had already set totally differen Wifi channels) the RAX will provide good coverage everywhere.
Let's try to solve the most annoying problem (device disconnections) first... if I turn off the Wifi on the modem and I connect the RAX to the cable, then what settings do you recommend?
Just the factory reset and then configure the range of addresses to be 192.168.1.100 - 192.168.1.255?
In the meanwhile I've already disabled the "Private Wi-Fi Address" setting on all of the Apple devices I have...