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idotf's avatar
idotf
Aspirant
Sep 02, 2015

Netgear A6210 on Windows 7 PC crashes Netgear R8000 WiFi Router w/ DOS Attack

I recently rebooted my cable modem and my Netgear WIFI router (R8000) because my wifi connection on my Windows 7 PC (using a Netgear A6210) was telling me there was an IP conflict on the network. The windows machine would fix the IP for a moment and give me another working connection and then my WIFI would error out and I would be disconnected again. So, as I said above, after I rebooted my router and my cable modem, my R8000 router went into an endless reboot until I pulled the A6210 WIFI stick off my Windows 7 PC. I proceeded to keep it off the network and my router stopped rebooting.

 

When I went into the router for more information, it gave me the following log information for why it was shutting down and turning back on:

 

[DoS attack: FIN Scan] attack packets in last 20 sec from ip [23.79.15.24], Tuesday, Sep 01,2015 17:31:50
[DoS attack: ACK Scan] attack packets in last 20 sec from ip [23.79.15.24], Tuesday, Sep 01,2015 17:31:49
[DoS attack: FIN Scan] attack packets in last 20 sec from ip [23.79.15.24], Tuesday, Sep 01,2015 17:31:43
[DoS attack: ACK Scan] attack packets in last 20 sec from ip [172.224.169.5], Tuesday, Sep 01,2015 17:27:36
[DoS attack: FIN Scan] attack packets in last 20 sec from ip [172.224.169.5], Tuesday, Sep 01,2015 17:27:33

 

I'm not sure what to think. I still have not tried to plugin my wifi stick for that PC again, since my router won't keep working when I do that. These are both netgear products, made for each other, so why is this happening now? They've been working fine together for almost a year now.

 

Any help or advice is greatly appreciated. Thanks in advance.

Hardware
Security
Troubleshooting

2 Replies

  • JamesGL's avatar
    JamesGL
    NETGEAR Employee Retired
    Sep 04, 2015

    Hi idotf,

     

    Welcome to Community!

     

    Base on the logs, the IP addresses are public IPs which are from outside your network. Try to install the adapter on a different computer or connect it again to the same computer then disconnect the router from Internet and check if you still get DoS attack.

     

    Regards,

     

    JamesGL

    Community Team

    • idotf's avatar
      idotf
      Aspirant
      Sep 10, 2015

      Thanks for the advice. Turns out is was EA's Origin Gaming Client that was crashing my router. I did some trouble shooting with the startup items, and one of the games was downloading a update that was crashing the system. Not sure how downloading a game update through a legitimate gaming client application can cause a DOS attack, or something else... But, I clicked on "repair" for the game in the Origin client and it went through a repair process and updated perfectly, with no more router/wifi breaks.

       

      Hope this helps someone in the future.