XR500 disconnects from cablemodem multiple times per day

Be aware of your Arris SB 6190 modem:

http://www.badmodems.com

Something to review. 

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Aaarrgh wrote:

Every morning when I wake up, and once or twice additionally throughout the day, the router loses connection to the cablemodem.  I have both wifi and cat5/6 devices connected.  All can still access the network (both wifi and hardwire), but not the internet.  If I look at the cablemodem lights, the internet is showing up and ready, but on the XR500, I have the orange internet light.  I can still access the router admin page (again using either wifi or hardwired connection), and sure enough, it shows that the internet is disconnected.  

 

To fix it, I just have to momentarily unplug the lan cable between the cablemodem and router.  Internet is restored in about 5 seconds.  

 

For troubleshooting, I've done the following: 

1 - made sure cable modem and router are running latest firmware.  

2 - restore to factory the XR500.

3 - left all unplugged for about 15 minutes, then plugged in cablemodem, then plugged in router after internet was up.

 

Everything comes up fine, then the connection loss starts up within 4-8 hours.  

 

Also as part of troubleshooting, I've tried swapping out 2 other older, crappier routers in place of the XR500.  Both work just fine.  Neither one has had a single connection loss.  I tried a super old Linksys WRT54 (? I think) for 3 days, and I am currently using a D-Link DIR 825 that's been up with ZERO drops for 4 days.  No drops, but I have crap WiFI range / speed, no QOS etc.  Hence why I bought the XR500... 

 

Almost forgot, I have a PS4 Pro and a PS4 connected via LAN cable.  First I made sure they can't auto update at night, that didn't prevent disconnects.  Then I just unplugged the LAN cable completely AND turned them fully off (weren't used for about 4 days), and again, the disconnects kept right on happening, same frequency.

 

I spent a while on the phone with tech support, and am now awaiting a call back tonight... I've seen lots of other folks with this similar problem, but haven't seen any fixes other than the ones I tried above.  Seems like I probably have a bad router, but if anyone has any ideas, please let me know.

 

Thanks!

 

Network info:

Cox cable, 100MB connection, using Arris SB6190.  Latest firmware via Cox.

XR500 running 2.3.2.40.

Netgear 24 port unmanaged switch (I actually removed the switch from the network and went down to 4 connected LAN devices to see if the switch was causing disconnects.  The disconnects still happened with same frequency with switch in the network or removed from network).

 

 

 

 

 

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