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XR500 Constant 100% CPU
Hi all,
I'm a bit stuck on this one.
Running latest firmware XR500 V2.3.2.134.
Router is running 100% constantly on both CPU's. A reboot doesn't change anything.
Only way I can fix it, temporarily, is to re-flash the current firmware. It'll be fine for maybe 3-4 days then go back to 100% again until I reflash.
Changed my router admin password a couple of times just incase it got hacked and someone uploaded a crypto firmware.
Doesn't seem to affect network speeds. Speedtests run fine.
Only other odd behavior is when this starts my connection benchmark results are gone and the scheduled benchmark isn't there anymore.
Any ideas ?
Thanks
Steve
Pressing for 10-15 seconds should be all that is needed on the reset button.
Ya, I prefer using the ERASE button with in the UI.
Glad you got it working. Please mark your thread as solved so others will know. Be sure to save off a back up configuration to file for safe keeping. Saves time if a reset is needed.
https://kb.netgear.com/000062080/How-do-I-back-up-the-configuration-settings-on-my-Orbi-WiFi-System
16 Replies
What is all connected to the router when this happens?Try disconnecting everything and checking CPU usage to see if it drops in value?
What is the Mfr and model# of the Internet Service Providers modem/ONT the NG router is connected too?
Be sure your using a good quality LAN cable between the modem and router. CAT6 is recommended.Has a factory reset and setup from scratch been performed since last FW update?
Thanks for the reply.
When it goes to 100% I've tried disconnecting everything except my PC (Including my Virgin Media Superhub 3), even disabled wireless. Still stays at 100%.
Just rebooted it and it's returned to normal. Which is weird as last couple of times it went right to 100% within a few mins.
Gona try a full factory reset but will not know for a few days if it comes back or not.
Checked logs and nothing obvious in there.
Your ISP Modem already has a built in router and wifi. This would be a double NAT (two router) condition which isn't recommended. Disabling WiFi here is not enough. This would be a double NAT condition which isn't recommended. https://kb.netgear.com/30186/What-is-Double-NAT
https://kb.netgear.com/30187/How-to-fix-issues-with-Double-NAT
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...