Random disconnects from router

[Soltaris]

Hello everyone,

 

I recently got a new router, the Netgear nighthawk ac2600 model R7450, 4 days ago and started having issues with wifi connections as soon as it was connected. I tried changing channels and even looked at qos thinking i was getting kicked off due to someone else streaming in the house but nothing has helped fix the issue.

My logs list disconnected at 12:34:42 and reconnected at 12:34:57 as an example, just long enough to freeze my game or get me booted to lobby. When i checked uptime it shows my wired connection having no loss in uptime since the reset and wifi 2.4 and 5 both longer uptimes, but the WAN timer will reset when i have the issues. I have contacted netgear support and they had me update the firmware to V1.2.0.36_1.0.1 and reset but i had another day of around 35 disconnects Thursday, after my isp reset the connection and said they dont see any issues on their end, and i had 27 Friday. 

I factory reset twice on friday in preparation to return it and since then i was 55 hours without a disconnect..until it started again. I havent changed any settings since then. I do not use a modem the router is connected straight into a wall jack from my isp with a 30ft cat6 cable. The connected devices are 3 android phones, 3 tablets, 1 wired pc, a wii, and two laptops. On average only 3 to 4 devices are in use at a time, im using an android s9 phone and an amazon fire mostly but i was watching linus youtube videos on a 3rd device (an adroid tablet) and thought either it was the culprit or watching linus for two hours broke it. Once i turned the tablet off again the issue persisted for the past few hours. So with only 1-2 devices it still happens it seems. I will attempt another reset and see if it stables out.

 

Ive seen similar issues on netgear forums but most were older or didnt seem to have a fix, so i decided to reach out here in hopes of some experts providing some help on the issue. Any help is appreciated before i return this and get another linksys or another brand if anyone has better recommendations.

Sorry for the long post, i just wantes to provide as much information and background as i could.

 

 

Here is an example of the logs and the uptime status.

 I've been told to not worry about the dos scans already on another post. However they sure look suspicious sometimes when i see speed drop or disconnects around the same time. Maybe my isp will give me a new ip since i cant find a way to block some of the more frequent ones.

 

[Time synchronized with NTP server time-b.netgear.com] Sunday, December 30,2018 00:57:41

[Internet connected] IP address: ** Sunday, December 30,2018 00:57:25 
[Internet disconnected] Sunday, December 30,2018 00:57:24 
[admin login] from source 192.168.1.3 Sunday, December 30,2018 00:53:11 
[DHCP IP: (192.168.1.6)] to MAC address ** Sunday, December 30,2018 00:52:15 
[Time synchronized with NTP server time-c.netgear.com] Sunday, December 30,2018 00:50:36 
[Internet connected] IP address: ** Sunday, December 30,2018 00:49:55 
[Internet disconnected] Sunday, December 30,2018 00:49:54 
[DoS attack: ACK Scan] from source: 113.207.80.96:443 Sunday, December 30,2018 00:47:11 
[DoS attack: ACK Scan] from source: 113.207.80.96:443 Sunday, December 30,2018 00:46:50 
[DoS attack: ACK Scan] from source: 113.207.80.96:443 Sunday, December 30,2018 00:46:28 
[DoS attack: ACK Scan] from source: 113.207.80.96:443 Sunday, December 30,2018 00:46:07 
[DoS attack: ACK Scan] from source: 113.207.80.96:443 Sunday, December 30,2018 00:45:44 
[DoS attack: ACK Scan] from source: 113.207.80.96:443 Sunday, December 30,2018 00:45:23 
[DoS attack: ACK Scan] from source: 113.207.80.96:443 Sunday, December 30,2018 00:45:02 
[DoS attack: ACK Scan] from source: 113.207.80.96:443 Sunday, December 30,2018 00:44:42 
[DoS attack: ACK Scan] from source: 113.207.80.96:443 Sunday, December 30,2018 00:44:18 
[DoS attack: ACK Scan] from source: 113.207.80.96:443 Sunday, December 30,2018 00:43:56 
[DoS attack: ACK Scan] from source: 113.207.80.96:443 Sunday, December 30,2018 00:42:54 
[DHCP IP: (192.168.1.6)] to MAC address ** Sunday, December 30,2018 00:33:24 
[DHCP IP: (192.168.1.6)] to MAC address ** Sunday, December 30,2018 00:14:33 
[DoS attack: ACK Scan] from source: 52.216.80.49:443 Sunday, December 30,2018 00:09:21 
[DHCP IP: (192.168.1.9)] to MAC address *** Sunday, December 30,2018 00:05:18 
[DHCP IP: (192.168.1.6)] to MAC address ** Saturday, December 29,2018 23:55:42 
[DoS attack: ACK Scan] from source: 221.229.162.212:52321 Saturday, December 29,2018 23:55:08 
[DHCP IP: (192.168.1.6)] to MAC address ** Saturday, December 29,2018 23:36:50 
[DHCP IP: (192.168.1.6)] to MAC address ** Saturday, December 29,2018 23:17:59 
[DoS attack: ACK Scan] from source: 103.46.137.183:7010 Saturday, December 29,2018 23:03:33 
[DHCP IP: (192.168.1.6)] to MAC address ** Saturday, December 29,2018 22:59:08 
[DHCP IP: (192.168.1.3)] to MAC address * Saturday, December 29,2018 22:54:12 
[DHCP IP: (192.168.1.6)] to MAC address ** Saturday, December 29,2018 22:40:17 
[DoS attack: ACK Scan] from source: 151.101.249.208:443 Saturday, December 29,2018 22:39:41 
[Time synchronized with NTP server time-b.netgear.com] Saturday, December 29,2018 22:35:10 
[Internet connected] IP address: ** Saturday, December 29,2018 22:34:53 
[Internet disconnected] Saturday, December 29,2018 22:34:52 
[Time synchronized with NTP server time-b.netgear.com] Saturday, December 29,2018 22:27:36 
[Internet connected] IP address: ** Saturday, December 29,2018 22:27:24 
[Internet disconnected] Saturday, December 29,2018 22:27:22 
[Time synchronized with NTP server time-b.netgear.com] Saturday, December 29,2018 22:27:04 
[DHCP IP: (192.168.1.6)] to MAC address ** Saturday, December 29,2018 22:21:26 
[DoS attack: ICMP Flood] from source: 64.94.179.12 Saturday, December 29,2018 22:14:25 
[DHCP IP: (192.168.1.11)] to MAC address **** Saturday, December 29,2018 22:10:56 
[admin login] from source 192.168.1.3 Saturday, December 29,2018 22:10:05

 

[DoS attack: ACK Scan] from source: 152.199.4.3:443 Saturday, December 29,2018 12:36:49 
[DoS attack: ACK Scan] from source: 152.199.4.3:443 Saturday, December 29,2018 12:36:18 
[DoS attack: ACK Scan] from source: 152.195.13.89:443 Saturday, December 29,2018 12:32:37 
[DoS attack: ACK Scan] from source: 152.195.13.89:443 Saturday, December 29,2018 12:31:59 
[DHCP IP: (192.168.1.3)] to MAC address ** Saturday, December 29,2018 12:28:59 
[DoS attack: ACK Scan] from source: 152.195.13.89:443 Saturday, December 29,2018 12:26:57 
[DoS attack: ACK Scan] from source: 152.195.13.89:443 Saturday, December 29,2018 12:26:35 
[DoS attack: ACK Scan] from source: 152.195.13.89:443 Saturday, December 29,2018 12:26:15 
[DoS attack: ACK Scan] from source: 152.195.13.89:443 Saturday, December 29,2018 12:25:01 
[DoS attack: ACK Scan] from source: 152.195.13.89:443 Saturday, December 29,2018 12:23:45 
[DoS attack: ACK Scan] from source: 152.199.4.3:443 Saturday, December 29,2018 12:23:24 
[DoS attack: ACK Scan] from source: 152.199.4.3:443 Saturday, December 29,2018 12:22:42

 

 

System Up Time 51:08:29

Port	Status	TxPkts	RxPkts	Collisions	Tx B/s	Rx B/s	Up Time
WAN	100M/Full	1123009	12550682	0	132417	3359798	00:20:50
LAN1	100M/Full	6833169	1134188	0	7566	991	51:07:31
LAN2	Link down						--
LAN3	Link down						--
LAN4	Link down						--
2.4G WLAN b/g/n	800M	11433947	6836827	0	17687	6429	50:48:54
5G WLAN a/n/ac	1733M	968400	648270	0	5636	1130	50:48:54

 

[Skiiwee29]

my wifes Pixel would randomly disconnect and have issues if I have the 5ghz network on. I have the Netgear R7000. Try disabling the 5ghz network and checking. 

[Soltaris]

If it was one device disconnecting it wouldn't be as bad, but when it happens everything is dropping. Im pretty sure its faulty firmware but maybe I've overlooked something. Ill test turning 5ghz off and see if anything changes, but if thats the case i should just return it and get a cheaper router without 5ghz.