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Orbi SXR30 Magenta light - repeatedly loses internet connection
Model SXR30 firmware version 4.2.0.122 I see many posts here as well as elsewhere on this. I loved this product until about a month ago and now it is very flaky. It will randomly drop its interne...
What is the Mfr and model# of the Internet Service Providers modem/ONT the NG router is connected too?
What all do you have connected to the SXR?
Any LAN switches by chance?
Notice any ARP Storms happening on the LAN?
Can you access the SXRs web page still?
The router is connected to my ISP (Xfinity) via an Arris SB8200 cable modem.
I have two netgear switches, daisy changed downstream from the router. I can access the orbi maintenance page (192.168.1.1) even when the WAN connection has dropped.
On the SXR, I have the switches, and a single receiver for the solar panels on my roof. That receiver has a little antenna to get data from the panels, which then sends the production data to Tesla over ethernet.
Are you suggesting I use tcpdump or something to determine if there is an ARP storm? I cannot imagine anything I have would send ARP storms.
Does the SXRs web page show that the internet is down when this happens?
What are the model #s of these switches?
How often does this happen?
One way to check for ARP storm is to look at the switches All LED activity. If there all constantly flashing or ON, means there a ARP storm happening. LED activity should be random blinking unless your downloading or streaming something on a particular device. I saw this yesterday after putting my SXR30 online with a CM2000. I don't know if turning on a ethernet connected SXS30 triggered it or not. I wasn't looking at the front LED until I happened to see one of my switches constantly blinking. Then looked at the SXR and front LED was PINK.
I'm going to try a reset and setup from scratch and put it online and test the SXR alone with one PC, then add in the network, see what happens, then try adding the SXS. This storm doesn't happen with my other routers.
If you downgrade let us know the results.
The topology is SXR30 -> Netgear GS108 switch -> Netgear GS105 switch -> laptops
23 or so devices on wifi.
This router failure happens randomly. It happened 2 weeks ago and I fussed with resetting, powering off the cable modem, resetting to factory, checking firmware, etc. Nothing was stable, then it just as randomly started working again. I highly suspected my ISP, but there were no outages and everything looked normal. The fact that this has happened to others made me wonder.
In the failure case, the SXR is stuck "waiting" for internet. Even after I downgraded, it went into that state...I then released and renewed it's external IP address and it worked. BTW, it got the exact same IP and DNS servers as before.
It's as though the SXR is losing it's IP address and either it doesn't renew it's lease (or fails when it tries) or it doesn't renew at all.
I'll post back from time to time if the downgrade holds (and will post again if it doesn't).
OK thanks for the details.
What is the CAT# cables between these switches? Same?
I finally got my SXK30 online though it took me about a good 45 minutes.
Would like to know if I set the SXR30 OFF line with a wired PC after it's factory reset and setup from scratch, if I set a 192.168.0.1 LAN1 IP address pool and range is .100 to .150. Disable all other LANs and WiFi accept for the main WiFi since I don't need or use these additional features, enable NTP and Traffic meter. All changes saved during the pre-staging of the SXR30 while not connected to any ISP modem. Powered if OFF. Rebooted a CM2000 cable modem, connected the SXR30 to the CM2000 and with only 1 wired PC connected to the SXR30 after it seemed to come online and ready, I did loose web page access to the router at 192.168.0.1 and found that the networking IP address on my laptop was now at a 174.something address. WTH.I tired the 174.something gateway address and could not access the SXRs web page whatsoever. I had to factory reset the SXR30 and setup from scratch while the router was connected to the CM2000 modem. Took another 30 minutes getting thru the web page wizard then setting up the LAN again for 192.168.0.1 and disabling the features I don't use one at a time. I graduated disabling features with just the one laptop connected making sure the LAN address didn't change on me. Managed to get it all setup and rebooted the SXR30 and while it rebooted I connected the mains from my switches to the back of the SXR30. I noticed while the SXR30 rebooted, the wired laptop reported a 192.168.1.something address, gateway reported a 192.168.1.1. I quickly disconnected the LAN mains as I didn't want this to change or populate to the home network. I watched the laptop and the IP address disappeared again and said the LAN was disconnected. I reconnected the mains from the home network again to the SXR30 and watched the laptop. Finally the laptop got a 192.168.0.something address. Home network seemed to be stable and no ARP'g seen.
After the mains were online and no ARPg and speed tests were to spec. I powered on the SXS30 in the basement. I watched it as it's connected to a Daisy chained GS-108 near the router, then a GS-105 in the living room then another GS-105 at the SXS. Saw no ARPg and eventually the front LED turned BLUE. The other home switch is the main switch and it's a HP pro Curve.
Must say this user setup process with a web browser is horrible and unexpected. I don't see this with any of my home class Orbi systems nor other NG routers. I don't remember having this kind of experience either on prior FW versions as well. The ARP storm I saw the other day when I first attempted to get this system online may have been due to the SXR changing the LAN address unbeknownst to me and me not seeing the change, once I turned othe SXS30, everything on the SXR was just busted entirely. Sorry about the rant.
I'll monitor mine for next few days and see what happens. I'm also on the look out for mysterious reboots on the router. So far it's online working and seems stable.
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