GordonK Posted July 27, 2021 Share Posted July 27, 2021 My NG 500 has been fine for about a year. Recently it started dropping wifi connections ..... Looking in the log is can see some DOS reports - one is from my internal WDCloud drive and another from an external IP address which is an Amazon IP ..... i suspect neither of these is a real DOS attack so whats going on . [DoS Attack: ACK Scan] from source: 192.168.0.41, port 445, Tuesday, July 27, 2021 18:56:37 [DoS Attack: ACK Scan] from source: 192.168.0.41, port 445, Tuesday, July 27, 2021 18:56:37 and [DoS Attack: ACK Scan] from source: 54.174.140.138, port 443, Tuesday, July 27, 2021 18:27:43 [DoS Attack: ACK Scan] from source: 54.174.140.138, port 443, Tuesday, July 27, 2021 18:27:38 Log file attached : Running : XR500 V2.3.2.114 / DumaOS 3.0.203 Anyone any idea's? log-1627412376730.txt Link to comment Share on other sites More sharing options...
Administrators Netduma Fraser Posted July 27, 2021 Administrators Share Posted July 27, 2021 Hey, welcome to the forum! The DoS entries are completely normal and nothing to worry about, they're very unlikely to be causing the WiFi to drop. Are you using Smart Connect for WiFi? If not, does it occur on 2.4/5GHz? Is it ALL WiFi devices? I'd suggest you upgrade to the latest beta here: https://community.netgear.com/t5/Nighthawk-Pro-Gaming-DumaOS-3-0/New-Firmware-v2-3-2-120-XR500/td-p/2071196/ and see if that helps with the disconnections Link to comment Share on other sites More sharing options...
GordonK Posted July 29, 2021 Author Share Posted July 29, 2021 Thanks for the response. I never use Smart Connect (prefer to keep the bands discrete as I find the smart connect to be unreliable in any router) . i can upgrade and see how it goes. On closer inspection it keeps the wifi attached but drops the wlan port …. It connects to my ISP router (wired) and that remains connected to the internet. I have reviewed the logs on that but they show nothing unusual. I have a new ISP device coming in a couple of weeks so in the interim I will just try the upgrade , monitor things and then see how it goes with the new ISP router in early August. Link to comment Share on other sites More sharing options...
Administrators Netduma Fraser Posted July 29, 2021 Administrators Share Posted July 29, 2021 Okay keep us posted! If you haven't already copy the WAN IP from the System Information page and set that as static/reserved for the XR on the ISP router and that should help as well Link to comment Share on other sites More sharing options...
GordonK Posted July 29, 2021 Author Share Posted July 29, 2021 Ahhh never thought of that … I will check and do that … Link to comment Share on other sites More sharing options...
GordonK Posted August 8, 2021 Author Share Posted August 8, 2021 ok since I reserved the IP address in the ISP router its been fine - assume its something to do with the ISP's router doing something odd with DHCP as it wasnt a reserved address ... v odd Link to comment Share on other sites More sharing options...
Administrators Netduma Fraser Posted August 8, 2021 Administrators Share Posted August 8, 2021 Thanks for the feedback, glad to hear it! Link to comment Share on other sites More sharing options...
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