plemans recommended I start a new thread so here goes.... I have two of these and neither will connect to the internet any longer... they both died within days of each other. The first unit on Cox worked for years, the second unit (refurbished) on WestCoast Internet failed in 2 weeks. Wifi SSIDs are broadcast and able to select, however, "No internet". Both computer systems connect with no issues via direct ethernet cable to modem. Factory reset does nothing. Rebooting the entire network several times does nothing. Cannot login in to RAX35s - assuming ip addresses are NOT being assigned internally by the RAX35 ??? Need a solution other than buy new wifi routers, thanks!

Arris Surfboard DocSys 3.0 on Cox networkArris CM820 DocSys 3.0 on West Coast Internet provided by ISP (been working for years) No recent changes in either location. Both routers were unplugged from power and failed to work again. Have no clue how to re-install router firmware if I can't login to the router...

ssl92677 wrote: Arris Surfboard DocSys 3.0 on Cox network Arris CM820 DocSys 3.0 on West Coast Internet provided by ISP (been working for years) No recent changes in either location. Both routers were unplugged from power and failed to work again. Have no clue how to re-install router firmware if I can't login to the router... Again, key will be what your led's on it are doing (when you get the chance). If they're on appropriately, then it usually isn't a corrupt firmware issue (not saying it isn't). But some setting issue we can work on. If it is a corrupt firmware issue, then we can use tftp or nmrpflash to force firmware to them. I'll go over those methods if we need to do them. So whenever you're home, Plug one of them in. Once its been powered on for a bit, make sure to factory reset it. Push and hold reset for 7-15 seconds while its powered on. the lights should blink/change when held long enough. Don't have it connected to the modem at that time.

I believe all the lights work correctly just no internet connection. I'm going to one location in about ten minutes and I will check back in once I get there. Thanks!

I'm at the first location and I powered on the RAX38. The red light came on, followed by the blue 2.4 and 5 gHz lights which then switched off and the main power light is now solid blue. Both the 2.4 and 5 gHz assigned SSIDs show as available but of course No internet as the router is NOT connected to the modem. Reset procedure results in power light turning for solid bue to solid red and after 10 seconds the red light begins to flash so I then remove the pin from the reset hole. Power=up sequence completes and the solid blue power light is lit. Reset is successful as original Netgear41 and Netgear41-5G SSIDs are once again broadcast. Connected HP desktop ethernet to RAX38 port #1 logged in at 192.168.1.1 and successfully added new login credentials, SSIDs & passwords. Turned off RAX28, disconnected desktop ethernet, relocated router to living room, rebooted modem, connected modem to router waited for router bootup completion and all appears to once again be in order. Looking back on this, I was previously unaware of the ability to directly connect a PC to a router port and login via 192.168.1.1. Now off to the other location to hopefully repeat another successful re-installation. Thanks for the help!

glad to hear you got it working! Might mark it solved so others aren't still trying to fix it. I'd also recommend making a backup. the RAX series seems like they have more issues after firmware changes and sometimes need the reset/reinstall.

RAX35-Issues-After-Resetting-Won-t-connect-to-modem-cannot-login

18 Replies

plemans
Guru
Apr 18, 2022
What modem/gateway do you have from cox?

What firmware is on them?

What are the led's on it doing?
- ssl92677
  Star
  Apr 18, 2022
  Arris modems at both locations
  Firmware versions are unknown as you can't login to the routers
  
  Have to check the lights, however....
  both RAX35 routers were working just fine until a few days ago then no worky no more.
  - plemans
    Guru
    Apr 18, 2022
    Which arris modems?
    
    When more than 1 device goes "bad" at the same time, its makes me suspicious of either a firmware update, a change in the setup, or something with the system. the odds of both of them going bad in such a short time are really high.
    
    I'd take a look at the led's to see what they're actually doing. It could be a corrupt firmware or something.
    
    That you can force new firmware back to them.
    
    Or it could be a double nat issue as netgear routers don't play as nicely with double nats.
    
    did you ever check to see if they've changed their default ip address? maybe if there's a double nat they're on the 10.0.0.1 address.

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RAX35-Issues-After-Resetting-Won-t-connect-to-modem-cannot-login