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Router is automatically restarting every 2 hours

Elly3141
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Router is automatically restarting every 2 hours

I just got AT&T fiber installed two days ago and have been experiencing some inconsistent router connection issues ever since I attempted an IP Passthrough from my Arris BGW210-700 to my Nighthawk R7000P router. Everything works well until the 2 hour mark comes up and the router would disconnect and connect again. I'd get a log like this every time in the same exact sequence from my Nighthawk router (this is my most recent one):

 

[DoS attack: FIN Scan] attack packets in last 20 sec from ip [X], Monday, Jun 15,2020 12:11:37

[DHCP IP: (X)] to MAC address X, Monday, Jun 15,2020 12:11:35

[Time synchronized with NTP server] Monday, Jun 15,2020 12:11:28

[Internet connected] IP address: X, Monday, Jun 15,2020 12:11:23

[Internet disconnected] Monday, Jun 15,2020 12:11:22

 

The BGW210-700 connection is always up and running - there's no issue with that. It's just my Nighthawk router that's periodically dropping the connection.

I understand that there's no "true bridge mode" for the BGW210-700 and tried researching alternative methods but to no avail (e.g. making sure there's a different subnet). I've used this router for a few months now, and I've never ran into this problem until I tried the IP Passthrough. I'm assuming there's a double NAT issue at play here maybe? 

Any suggestions are appreciated - Thank you!

 

Model: R7000P|Nighthawk AC2300 Smart WiFi Dual Band Gigabit Router
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plemans
Guru

Re: Router is automatically restarting every 2 hours

Try leaving the att router in router mode and putting the netgear in access point mode. 

Current Setup: CM2000-> RBK750-> GS716v2-> RAXE500-> Pi-hole->
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