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alchemista's avatar
alchemista
Tutor
Oct 06, 2021

Daily Internet & Wifi disconnects: RBR40, RBS40, and RBW30

RBR40: FW V2.7.3.22
+ 3 satellites:
1x RBS40 - FW V2.7.3.22
2x RBW30 - FW V2.6.2.6
 
Symptoms:
Multiple times daily - some days worse than others:
1) Wifi will stay connected but Internet connection will be lost at the router, even though the cable modem connection is fine. This self-resolves within 10 minutes.
AND/OR
2) Wifi will disconnect. This self-resolves within 10 minutes.
 
Logs from most recent reboot (some of the repetitive DoS removed for brevity):
[DoS Attack: ACK Scan] from source: 157.240.28.34, port 443, Wednesday, October 06, 2021 16:04:05
[DoS Attack: ACK Scan] from source: 162.208.16.36, port 443, Wednesday, October 06, 2021 16:01:32
[DoS Attack: SYN/ACK Scan] from source: 51.178.232.167, port 80, Wednesday, October 06, 2021 15:57:30
[DoS Attack: ACK Scan] from source: 70.70.153.199, port 22067, Wednesday, October 06, 2021 15:57:29
[DoS Attack: ACK Scan] from source: 54.87.197.95, port 443, Wednesday, October 06, 2021 15:55:54
[Time synchronized with NTP server] Wednesday, October 06, 2021 15:55:24
[DoS Attack: RST Scan] from source: 34.117.254.173, port 443, Wednesday, October 06, 2021 15:54:53
[UPnP set event: add_nat_rule] from source 192.168.1.14, Wednesday, October 06, 2021 15:54:29
[DoS Attack: ACK Scan] from source: 159.89.252.82, port 443, Wednesday, October 06, 2021 15:54:22
[Internet connected] IP address: X.X.X.X (removed), Wednesday, October 06, 2021 15:53:45
[Initialized, firmware version: V2.7.3.22] Wednesday, October 06, 2021 15:53:42
 
This has been happening for several months, and I just put up with it, but it's really unacceptable. I'm about ready to throw out the entire Orbi setup.

I've seen so many similar threads with no resolution, so I'm trying to provide better information on configuration.

1 Reply

  • FURRYe38's avatar
    FURRYe38
    Guru - Experienced User
    Oct 06, 2021

    What is the Mfr and model# of the Internet Service Providers modem/ONT the NG router is connected too?

     

    What is the size of your home? Sq Ft?
    What is the distance between the router and 📡 satellite(s)? 30 feet or more is recommended in between RBR and RBS📡 to begin with depending upon building materials when wirelessly connected.
    https://kb.netgear.com/31029/Where-should-I-place-my-Orbi-satellite 📡

     

    What channels are you using? Auto? Try setting manual channel 1, 6 or 11 on 2.4Ghz and 40 to 48 channel on 5Ghz.
    Any Wifi Neighbors near by? If so, how many?

     

    Try enabling Beamforming and MIMO(MIMO may or may not be needed) and WMM. Under Advanced Tab/Advanced Settings/Wireless Settings

     

    Try disabling the following and see:
    Armor, Circle, Traffic Meter, Daisy Chain, Fast Roaming, IPv6 and Set 20/40Mhz Coexistence to 40Mhz only. Save settings and reboot the router and satellite(s). Under Advanced Tab/Advanced Settings/Wireless Settings

     

    One User Experience/Configuration:
    https://community.netgear.com/t5/Orbi/Most-Stable-Orbi-Configuration/m-p/1941087/highlight/true#M97026

     

    Has a factory reset and setup from scratch been performed since last FW update?

     

    Use a whois look up on this IP addresses to see where they come from.