C7000 Router Modem dropping WiFi periodically on Mac OS X Catalina

bschmiedeler
Aspirant
Oct 17, 2019
>>Do you know if you were having wifi problems before OSX 10.15?

Approximately, yes. I started running Catalina betas in late July. However, I don't think that is the issue, as I have a work MBP which I have NOT upgraded, and it still suffers from these problems. Also, our iDevices will sometimes have issues as they of course prefer WiFi over cellular. Sometimes if I am on my iPhone or iPad elsewhere in the house network speed will start to go south and I turn off WiFi and go to cellular and speeds are great.

However, I manage the router from the Mac that is running Catalina and was running the Bets. I have not tried connecting my home MBP directly to the router as I need a USB-C to ethernet converter.

>>What channels are you using? Auto?
>>Try setting manual channel 1, 6 or 11 on 2.4Ghz
>>and any unused channel on 5Ghz.

5Ghz is manually set to 153.
2.4Ghz was auto but manually changed it to 11.

>>Any Wifi Neighbors near by? If so, how many?

Too many. Not neighbors really, but devices. I am using Netspot to moniter WiFi (see attached picture). However, things were running very well for about 18 months, WiFi just worked. No idea what the heck happened.

Should I try a full factory reset?

Thank you for your suggestions. Looking at this as a learning experience.+
- FURRYe38
  Guru
  Oct 18, 2019
  I would factory reset and setup from scratch.
  
  ALso turn OFF all other wifi devices that put out a wifi signal temporarily to see if this helps resolve problems.
  - bschmiedeler
    Aspirant
    Oct 23, 2019
    I completely reset the C7000. I have not been able to turn off all WiFi devices yet to try that.
    
    At first I thought the issue was fixed as speed was very good! But over the last several days I have noticed that my speed varies greatly, from 180 Mbps down to less than 1. At least once a day the WiFi signal is totally gone and I have to turn the unit off and back on.
    
    Further investigation revelaed many DoS attacks in the logs (see picture), but I have read that Netgear equipment can report false positives. If so, how the heck could I tell the difference between a real attack and a false positive?
    
    Could the C7000 just be bad?

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C7000 Router Modem dropping WiFi periodically on Mac OS X Catalina