F5F Stay Refreshed Power Users Networks Unconnections occur unexpectedly from the router.

Unconnections occur unexpectedly from the router.

Unconnections occur unexpectedly from the router.

R
Raidex20
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03-12-2024, 03:47 AM
#1
Hello all, I recently acquired a new router – the Netgear Nighthawk AC2600 model R7450, four days ago. Immediately after setup, I encountered Wi-Fi problems. I tried changing channels and considered QoS settings, thinking I was being unfairly affected by streaming elsewhere in the house. Still, nothing resolved the issue. My logs show disconnections at 12:34:42 and reconnections at 12:34:57, just long enough to interrupt my game or cause me to log off. When checking uptime, my wired connection displayed no downtime since the reset, and both Wi-Fi 2.4 and 5 reported stable uptimes. However, the WAN timer would reset during these incidents.

I reached out to Netgear support, who asked me to update the firmware to V1.2.0.36_1.0.1 and reset it. I followed their instructions, but experienced another day of around 35 disconnects on Thursday. After my ISP reset the connection, they stated they didn’t see any problems on their side. That happened on Friday. I performed a factory reset twice on Friday in preparation for returning it, and since then I’ve had about 55 hours without a disconnection—until it started again. I haven’t changed any settings since then.

I don’t use a modem; the router connects directly to my ISP via a 30ft Cat6 cable. Connected devices include three Android phones, three tablets, one wired PC, a Wii, and two laptops. On average, only 3–4 devices are active at once. I’m using an Android S9 and an Amazon Fire, mostly watching Linux YouTube videos on an Android tablet. I thought either the device or the content might be causing the issue, but turning off the tablet didn’t fix it. It’s still happening with just 1–2 devices. I’m planning another reset to see if it stabilizes.

I’ve seen similar reports on Netgear forums, but most were outdated or didn’t offer solutions. I’m hoping experts can help. Any advice would be greatly appreciated before I return this unit and consider another brand or a different model. Thanks for your time—I’ve shared as much detail as possible. Here’s an example of my logs and uptime status. I’ve been told not to worry about the DOS scans from another post, though they can appear suspicious when speed drops or disconnections coincide. Maybe my ISP will assign a new IP since I can’t block frequent issues. [Time synchronized with NTP server time-b.netgear.com] Sunday, Dec 30,2018 00:57:41 [Internet connected] IP address: ** Sunday, Dec 30,2018 00:57:25 [Internet disconnected] Sunday, Dec 30,2018 00:57:24 [admin login] from source 192.168.1.3 Sunday, Dec 30,2018 00:53:11 [DHCP IP: (192.168.1.6)] to MAC address ** Sunday, Dec 30,2018 00:52:15 [Time synchronized with NTP server time-c.netgear.com] Sunday, Dec 30,2018 00:50:36 [Internet connected] IP address: ** Sunday, Dec 30,2018 00:49:55 [Internet disconnected] Sunday, Dec 30,2018 00:49:54 [DoS attack: ACK Scan] from source: 113.207.80.96:443 Sunday, Dec 30,2018 00:47:11 [DoS attack: ACK Scan] from source: 113.207.80.96:443 Sunday, Dec 30,2018 00:46:50 [DoS attack: ACK Scan] from source: 113.207.80.96:443 Sunday, Dec 30,2018 00:46:28 [DoS attack: ACK Scan] from source: 113.207.80.96:443 Sunday, Dec 30,2018 00:46:07 [DoS attack: ACK Scan] from source: 113.207.80.96:443 Sunday, Dec 30,2018 00:45:44 [DoS attack: ACK Scan] from source: 113.207.80.96:443 Sunday, Dec 30,2018 00:45:23 [DoS attack: ACK Scan] from source: 113.207.80.96:443 Sunday, Dec 30,2018 00:44:42 [DoS attack: ACK Scan] from source: 113.207.80.96:443 Sunday, Dec 30,2018 00:44:18 [DoS attack: ACK Scan] from source: 113.207.80.96:443 Sunday, Dec 30,2018 00:43:56 [DoS attack: ACK Scan] from source: 113.207.80.80:443 Sunday, Dec 30,2018 00:42:54 [DHCP IP: (192.168.1.6)] to MAC address ** Sunday, Dec 30,2018 00:33:24 [DHCP IP: (192.168.1.6)] to MAC address ** Sunday, Dec 30,2018 00:14:33 [DoS attack: ACK Scan] from source: 52.216.80.49:443 Sunday, Dec 30,2018 00:09:21 [DHCP IP: (192.168.1.9)] to MAC address *** Sunday, Dec 30,2018 00:05:18 [DHCP IP: (192.168.1.6)] to MAC address ** Saturday, Dec 29,2018 23:55:42 [DoS attack: ACK Scan] from source: 221.229.162.212:52321 Saturday, Dec 29,2018 23:55:08 [DHCP IP: (192.168.1.6)] to MAC address ** Saturday, Dec 29,2018 23:36:50 [DHCP IP: (192.168.1.6)] to MAC address ** Saturday, Dec 29,2018 23:17:59 [DoS attack: ACK Scan] from source: 103.46.137.183:7010 Sunday, Dec 30,2018 00:47:11 [DoS attack: ACK Scan] from source: 113.207.80.96:443 Sunday, Dec 30,2018 00:46:50 [DoS attack: ACK Scan] from source: 113.207.80.80:443 Sunday, Dec 30,2018 00:46:28 [DoS attack: ACK Scan] from source: 113.207.80.49:443 Sunday, Dec 30,2018 00:46:07 [DoS attack: ACK Scan] from source: 113.207.80.96:443 Sunday, Dec 30,2018 00:45:44 [DoS attack: ACK Scan] from source: 113.207.80.96:443 Sunday, Dec 30,2018 00:45:23 [DoS attack: ACK Scan] from source: 113.207.80.6:443 Sunday, Dec 30,2018 00:33:24 [DHCP IP: (192.168.1.6)] to MAC address ** Sunday, Dec 30,2018 00:33:24 [DHCP IP: (192.168.1.6)] to MAC address ** Sunday, Dec 30,2018 00:14:33 [DoS attack: ACK Scan] from source: 52.216.80.49:443 Sunday, Dec 30,2018 00:09:21 [DHCP IP: (192.168.1.6)] to MAC address ** Saturday, Dec 29,2018 23:55:42 [DoS attack: ICMP Flood] from source: 221.229.162.212:52321 Saturday, Dec 29,2018 23:55:08 [DHCP IP: (192.168.1.6)] to MAC address ** Saturday, Dec 29,2018 23:55:22 [DoS attack: ICMP Flood] from source: 103.46.137.183:7010 Saturday, Dec 29,2018 22:59:08 [DHCP IP: (192.168.1.6)] to MAC address *** Saturday, Dec 29,2018 22:54:12 [DHCP IP: (192.168.1.6)] to MAC address ** Saturday, Dec 29,2018 22:40:17 [DoS attack: ACK Scan] from source: 151.101.249.208:443 Saturday, Dec 29,2018 22:39:41 [Time synchronized with NTP server time-b.netgear.com] Saturday, Dec 29,2018 22:35:10 [Internet connected] IP
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R
Raidex20
03-12-2024, 03:47 AM #1

Hello all, I recently acquired a new router – the Netgear Nighthawk AC2600 model R7450, four days ago. Immediately after setup, I encountered Wi-Fi problems. I tried changing channels and considered QoS settings, thinking I was being unfairly affected by streaming elsewhere in the house. Still, nothing resolved the issue. My logs show disconnections at 12:34:42 and reconnections at 12:34:57, just long enough to interrupt my game or cause me to log off. When checking uptime, my wired connection displayed no downtime since the reset, and both Wi-Fi 2.4 and 5 reported stable uptimes. However, the WAN timer would reset during these incidents.

I reached out to Netgear support, who asked me to update the firmware to V1.2.0.36_1.0.1 and reset it. I followed their instructions, but experienced another day of around 35 disconnects on Thursday. After my ISP reset the connection, they stated they didn’t see any problems on their side. That happened on Friday. I performed a factory reset twice on Friday in preparation for returning it, and since then I’ve had about 55 hours without a disconnection—until it started again. I haven’t changed any settings since then.

I don’t use a modem; the router connects directly to my ISP via a 30ft Cat6 cable. Connected devices include three Android phones, three tablets, one wired PC, a Wii, and two laptops. On average, only 3–4 devices are active at once. I’m using an Android S9 and an Amazon Fire, mostly watching Linux YouTube videos on an Android tablet. I thought either the device or the content might be causing the issue, but turning off the tablet didn’t fix it. It’s still happening with just 1–2 devices. I’m planning another reset to see if it stabilizes.

I’ve seen similar reports on Netgear forums, but most were outdated or didn’t offer solutions. I’m hoping experts can help. Any advice would be greatly appreciated before I return this unit and consider another brand or a different model. Thanks for your time—I’ve shared as much detail as possible. Here’s an example of my logs and uptime status. I’ve been told not to worry about the DOS scans from another post, though they can appear suspicious when speed drops or disconnections coincide. Maybe my ISP will assign a new IP since I can’t block frequent issues. [Time synchronized with NTP server time-b.netgear.com] Sunday, Dec 30,2018 00:57:41 [Internet connected] IP address: ** Sunday, Dec 30,2018 00:57:25 [Internet disconnected] Sunday, Dec 30,2018 00:57:24 [admin login] from source 192.168.1.3 Sunday, Dec 30,2018 00:53:11 [DHCP IP: (192.168.1.6)] to MAC address ** Sunday, Dec 30,2018 00:52:15 [Time synchronized with NTP server time-c.netgear.com] Sunday, Dec 30,2018 00:50:36 [Internet connected] IP address: ** Sunday, Dec 30,2018 00:49:55 [Internet disconnected] Sunday, Dec 30,2018 00:49:54 [DoS attack: ACK Scan] from source: 113.207.80.96:443 Sunday, Dec 30,2018 00:47:11 [DoS attack: ACK Scan] from source: 113.207.80.96:443 Sunday, Dec 30,2018 00:46:50 [DoS attack: ACK Scan] from source: 113.207.80.96:443 Sunday, Dec 30,2018 00:46:28 [DoS attack: ACK Scan] from source: 113.207.80.96:443 Sunday, Dec 30,2018 00:46:07 [DoS attack: ACK Scan] from source: 113.207.80.96:443 Sunday, Dec 30,2018 00:45:44 [DoS attack: ACK Scan] from source: 113.207.80.96:443 Sunday, Dec 30,2018 00:45:23 [DoS attack: ACK Scan] from source: 113.207.80.96:443 Sunday, Dec 30,2018 00:44:42 [DoS attack: ACK Scan] from source: 113.207.80.96:443 Sunday, Dec 30,2018 00:44:18 [DoS attack: ACK Scan] from source: 113.207.80.96:443 Sunday, Dec 30,2018 00:43:56 [DoS attack: ACK Scan] from source: 113.207.80.80:443 Sunday, Dec 30,2018 00:42:54 [DHCP IP: (192.168.1.6)] to MAC address ** Sunday, Dec 30,2018 00:33:24 [DHCP IP: (192.168.1.6)] to MAC address ** Sunday, Dec 30,2018 00:14:33 [DoS attack: ACK Scan] from source: 52.216.80.49:443 Sunday, Dec 30,2018 00:09:21 [DHCP IP: (192.168.1.9)] to MAC address *** Sunday, Dec 30,2018 00:05:18 [DHCP IP: (192.168.1.6)] to MAC address ** Saturday, Dec 29,2018 23:55:42 [DoS attack: ACK Scan] from source: 221.229.162.212:52321 Saturday, Dec 29,2018 23:55:08 [DHCP IP: (192.168.1.6)] to MAC address ** Saturday, Dec 29,2018 23:36:50 [DHCP IP: (192.168.1.6)] to MAC address ** Saturday, Dec 29,2018 23:17:59 [DoS attack: ACK Scan] from source: 103.46.137.183:7010 Sunday, Dec 30,2018 00:47:11 [DoS attack: ACK Scan] from source: 113.207.80.96:443 Sunday, Dec 30,2018 00:46:50 [DoS attack: ACK Scan] from source: 113.207.80.80:443 Sunday, Dec 30,2018 00:46:28 [DoS attack: ACK Scan] from source: 113.207.80.49:443 Sunday, Dec 30,2018 00:46:07 [DoS attack: ACK Scan] from source: 113.207.80.96:443 Sunday, Dec 30,2018 00:45:44 [DoS attack: ACK Scan] from source: 113.207.80.96:443 Sunday, Dec 30,2018 00:45:23 [DoS attack: ACK Scan] from source: 113.207.80.6:443 Sunday, Dec 30,2018 00:33:24 [DHCP IP: (192.168.1.6)] to MAC address ** Sunday, Dec 30,2018 00:33:24 [DHCP IP: (192.168.1.6)] to MAC address ** Sunday, Dec 30,2018 00:14:33 [DoS attack: ACK Scan] from source: 52.216.80.49:443 Sunday, Dec 30,2018 00:09:21 [DHCP IP: (192.168.1.6)] to MAC address ** Saturday, Dec 29,2018 23:55:42 [DoS attack: ICMP Flood] from source: 221.229.162.212:52321 Saturday, Dec 29,2018 23:55:08 [DHCP IP: (192.168.1.6)] to MAC address ** Saturday, Dec 29,2018 23:55:22 [DoS attack: ICMP Flood] from source: 103.46.137.183:7010 Saturday, Dec 29,2018 22:59:08 [DHCP IP: (192.168.1.6)] to MAC address *** Saturday, Dec 29,2018 22:54:12 [DHCP IP: (192.168.1.6)] to MAC address ** Saturday, Dec 29,2018 22:40:17 [DoS attack: ACK Scan] from source: 151.101.249.208:443 Saturday, Dec 29,2018 22:39:41 [Time synchronized with NTP server time-b.netgear.com] Saturday, Dec 29,2018 22:35:10 [Internet connected] IP

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G
GamerzPranks
Junior Member
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21
03-12-2024, 03:47 AM
#2
She sometimes cuts off unexpectedly when using the 5GHz connection. I own a Netgear R7000. I should turn off the 5GHz network and see if it works.
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G
GamerzPranks
03-12-2024, 03:47 AM #2

She sometimes cuts off unexpectedly when using the 5GHz connection. I own a Netgear R7000. I should turn off the 5GHz network and see if it works.

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M
Metanium
Member
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122
03-12-2024, 03:47 AM
#3
If only one device would disconnect, the issue wouldn't be severe, but everything would stop. I think the problem is with the firmware, though I might have missed something. I plan to switch off the 5GHz option and check if it improves things, but if not, I should return it for a more affordable router without that feature.
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M
Metanium
03-12-2024, 03:47 AM #3

If only one device would disconnect, the issue wouldn't be severe, but everything would stop. I think the problem is with the firmware, though I might have missed something. I plan to switch off the 5GHz option and check if it improves things, but if not, I should return it for a more affordable router without that feature.

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