ASUS RT-AC66U Dropping Wifi Connections

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Tony Johnson

New Around Here
Hello all,

First, let me say I have loved my AC66U for the past few years I have had a great rock steady connection.

However, about a month ago the neighbor behind me got some new router that is blasting a hell of a signal.
I can use the wifi analyzer on my phone and be standing beside my AC66U router and still get a stronger signal from his Netgear router. In fact serval times in the evening now all my devices seem to lose connection to my router for a few minutes then reconnect. My Roku boxes will buffer, my phones will lose connection. Frustrating as hell! But my wired security cameras never lose connection when wireless goes down. So I am not sure if the router has developed a wireless issue or this guy is just killing my wifi.

My router is very centrally located in the house, always had a good signal throughout the house until now.
I have changed channels on the router to keep it off the same channel as the net gear, still drops out often.

So of course here is my obvious question, if I upgrade to an AC5300 or something someone recommends, will this help? Is the newer technology that much better than a 6-year-old router?

Thanks,

Tony
 

ColinTaylor

Part of the Furniture
What firmware version are you using?

Have you looked in the router's syslog for error/information messages?

What band is this happening on?

What channels are you and your neighbour using? What bandwidth are you using?
 

Tony Johnson

New Around Here
Firmware Version:3.0.0.4.382_51641
Happens on mainly 2.4 but occasional on 5ghz




Wireless Log
SSID: "NameGoesHere"
RSSI: 0 dBm SNR: 0 dB noise: -75 dBm Channel: 8
BSSID: AC:22:0B:CF:18:60 Capability: ESS ShortSlot
Supported Rates: [ 1(b) 2(b) 5.5(b) 6 9 11(b) 12 18 24 36 48 54 ]
HT Capable:
Chanspec: 2.4GHz channel 8 20MHz (0x1008)
Primary channel: 8
HT Capabilities:
Supported MCS : [ 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 ]

Interference Level: Acceptable
Mode : AP Only

Stations List
----------------------------------------
idx MAC Associated Authorized RSSI PHY PSM Tx rate Rx rate Connect Time
B0:FC:0D:2D:4A:63 Yes Yes -48dBm n No 72.2M 01:32:12
D8:28:C9:20:D7:46 Yes Yes -45dBm n No 72.2M 01:32:31
B8:D7:AF:1E:E1:21 Yes Yes -51dBm n Yes 1M 01:32:41
3C:5C:C4:69:8F:B9 Yes Yes -43dBm n No 72.2M 1M 01:32:44
DC:EF:CA:24:A0:CE Yes Yes -57dBm n No 52M 01:32:44

SSID: "NameGoesHere5ghz"
RSSI: 0 dBm SNR: 0 dB noise: -92 dBm Channel: 48/80
BSSID: AC:22:0B:CF:18:64 Capability: ESS
Supported Rates: [ 6(b) 9 12(b) 18 24(b) 36 48 54 ]
VHT Capable:
Chanspec: 5GHz channel 42 80MHz (0xe32a)
Primary channel: 48
HT Capabilities:
Supported MCS : [ 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 ]
VHT Capabilities:
Supported VHT (tx) Rates:
NSS: 1 MCS: 0-9
NSS: 2 MCS: 0-9
NSS: 3 MCS: 0-9
Supported VHT (rx) Rates:
NSS: 1 MCS: 0-9
NSS: 2 MCS: 0-9
NSS: 3 MCS: 0-9

Interference Level: Acceptable
Mode : AP Only

Stations List
----------------------------------------
idx MAC Associated Authorized RSSI PHY PSM Tx rate Rx rate Connect Time
AC:63:BE:CF:44:23 Yes Yes -54dBm n No 585M 6M 01:32:40



Here is a snippet of the general log

May 3 09:39:27 vpnserver1[691]: IP packet with unknown IP version=0 seen
May 3 09:39:27 vpnserver1[691]: IP packet with unknown IP version=0 seen
May 4 22:21:42 rc_service: httpd 353:notify_rc start_webs_update
May 4 23:44:13 rc_service: httpd 353:notify_rc restart_wireless;restart_qos;restart_firewall;
May 4 23:44:18 acsd: scan in progress ...
May 4 23:44:20 acsd: scan in progress ...
May 4 23:44:21 acsd: COEX: downgraded chanspec 0x1909 to 0x100b: channel 6 used by exiting BSSs
May 4 23:44:21 acsd: selected channel spec: 0x100b (11)
May 4 23:44:21 acsd: acs_set_chspec: 0x100b (11) for reason APCS_INIT
May 4 23:44:22 kernel: HTB: quantum of class 10002 is big. Consider r2q change.
May 4 23:44:22 kernel: HTB: quantum of class 10060 is big. Consider r2q change.
May 4 23:44:23 miniupnpd[664]: shutting down MiniUPnPd
May 4 23:44:23 nat: apply nat rules (/tmp/nat_rules_eth0_eth0)
May 4 23:44:23 miniupnpd[7324]: version 1.9 started
May 4 23:44:23 miniupnpd[7324]: HTTP listening on port 48211
May 4 23:44:23 miniupnpd[7324]: Listening for NAT-PMP/PCP traffic on port 5351
May 4 23:45:44 rc_service: httpd 353:notify_rc restart_wireless
May 4 23:45:52 acsd: scan in progress ...
May 4 23:45:52 acsd: COEX: downgraded chanspec 0x1909 to 0x100b: channel 6 used by exiting BSSs
May 4 23:45:52 acsd: selected channel spec: 0x100b (11)
May 4 23:45:52 acsd: acs_set_chspec: 0x100b (11) for reason APCS_INIT
May 4 23:51:55 rc_service: httpd 353:notify_rc restart_wireless;restart_qos;restart_firewall;

May 4 23:52:02 acsd: scan in progress ...
May 4 23:52:03 acsd: COEX: downgraded chanspec 0x1909 to 0x100b: channel 4 used by exiting BSSs
May 4 23:52:03 acsd: selected channel spec: 0x100b (11)
May 4 23:52:03 acsd: acs_set_chspec: 0x100b (11) for reason APCS_INIT
May 4 23:52:05 kernel: HTB: quantum of class 10002 is big. Consider r2q change.
May 4 23:52:05 kernel: HTB: quantum of class 10060 is big. Consider r2q change.
May 4 23:52:05 miniupnpd[7324]: shutting down MiniUPnPd
May 4 23:52:05 nat: apply nat rules (/tmp/nat_rules_eth0_eth0)
May 4 23:52:05 miniupnpd[9005]: version 1.9 started
May 4 23:52:05 miniupnpd[9005]: HTTP listening on port 40201
May 4 23:52:05 miniupnpd[9005]: Listening for NAT-PMP/PCP traffic on port 5351
May 4 23:52:06 miniupnpd[9005]: Unknown udp packet received from 192.168.1.140:1900
May 4 23:52:07 miniupnpd[9005]: Unknown udp packet received from 192.168.1.169:1900
May 4 23:52:07 miniupnpd[9005]: Unknown udp packet received from 192.168.1.60:60000
May 5 05:00:47 vpnserver1[691]: IP packet with unknown IP version=0 seen
May 5 05:00:47 vpnserver1[691]: IP packet with unknown IP version=0 seen
May 5 05:00:47 vpnserver1[691]: IP packet with unknown IP version=0 seen
May 5 08:30:32 kernel: wlc_dump_aggfifo:
May 5 08:30:32 kernel: framerdy 0x18 bmccmd 4 framecnt 1
May 5 08:30:32 kernel: AQM agg params 0xfc0 maxlen hi/lo 0x0 0xffff minlen 0x0 adjlen 0x8
May 5 08:30:32 kernel: AQM agg results 0x8000 len hi/lo: 0x0 0x0 BAbitmap(0-3) 0 0 0 0
May 5 18:39:16 vpnserver1[691]: IP packet with unknown IP version=0 seen
May 5 18:39:16 vpnserver1[691]: IP packet with unknown IP version=0 seen

May 4 23:44:21 acsd: COEX: downgraded chanspec 0x1909 to 0x100b: channel 6 used by exiting BSSs
May 4 23:44:21 acsd: selected channel spec: 0x100b (11)
May 4 23:44:21 acsd: acs_set_chspec: 0x100b (11) for reason APCS_INIT
May 4 23:44:22 kernel: HTB: quantum of class 10002 is big. Consider r2q change.
May 4 23:44:22 kernel: HTB: quantum of class 10060 is big. Consider r2q change.
May 4 23:44:23 miniupnpd[664]: shutting down MiniUPnPd
May 4 23:44:23 nat: apply nat rules (/tmp/nat_rules_eth0_eth0)
May 4 23:44:23 miniupnpd[7324]: version 1.9 started
May 4 23:44:23 miniupnpd[7324]: HTTP listening on port 48211
May 4 23:44:23 miniupnpd[7324]: Listening for NAT-PMP/PCP traffic on port 5351
May 4 23:45:44 rc_service: httpd 353:notify_rc restart_wireless

May 4 23:45:52 acsd: scan in progress ...
May 4 23:45:52 acsd: COEX: downgraded chanspec 0x1909 to 0x100b: channel 6 used by exiting BSSs
May 4 23:45:52 acsd: selected channel spec: 0x100b (11)
May 4 23:45:52 acsd: acs_set_chspec: 0x100b (11) for reason APCS_INIT
May 4 23:51:55 rc_service: httpd 353:notify_rc restart_wireless;restart_qos;restart_firewall;

May 4 23:52:02 acsd: scan in progress ...
May 4 23:52:03 acsd: COEX: downgraded chanspec 0x1909 to 0x100b: channel 4 used by exiting BSSs
May 4 23:52:03 acsd: selected channel spec: 0x100b (11)
May 4 23:52:03 acsd: acs_set_chspec: 0x100b (11) for reason APCS_INIT
May 4 23:52:05 kernel: HTB: quantum of class 10002 is big. Consider r2q change.
May 4 23:52:05 kernel: HTB: quantum of class 10060 is big. Consider r2q change.
May 4 23:52:05 miniupnpd[7324]: shutting down MiniUPnPd
May 4 23:52:05 nat: apply nat rules (/tmp/nat_rules_eth0_eth0)
May 4 23:52:05 miniupnpd[9005]: version 1.9 started
May 4 23:52:05 miniupnpd[9005]: HTTP listening on port 40201
May 4 23:52:05 miniupnpd[9005]: Listening for NAT-PMP/PCP traffic on port 5351
May 4 23:52:06 miniupnpd[9005]: Unknown udp packet received from 192.168.1.140:1900
May 4 23:52:07 miniupnpd[9005]: Unknown udp packet received from 192.168.1.169:1900
May 4 23:52:07 miniupnpd[9005]: Unknown udp packet received from 192.168.1.60:60000
May 5 05:00:47 vpnserver1[691]: IP packet with unknown IP version=0 seen
May 5 05:00:47 vpnserver1[691]: IP packet with unknown IP version=0 seen
May 5 05:00:47 vpnserver1[691]: IP packet with unknown IP version=0 seen
May 5 05:00:47 vpnserver1[691]: IP packet with unknown IP version=0 seen

May 6 11:41:34 rc_service: httpd 353:notify_rc restart_wireless
May 6 11:41:39 acsd: scan in progress ...
May 6 11:41:40 acsd: scan in progress ...
May 6 11:41:40 acsd: scan in progress ...
May 6 11:41:40 acsd: scan in progress ...
May 6 11:41:40 acsd: scan in progress ...
May 6 11:41:41 acsd: scan in progress ...
May 6 11:41:41 acsd: scan in progress ...
May 6 11:41:41 acsd: scan in progress ...
May 6 11:41:41 acsd: scan in progress ...
May 6 11:41:42 acsd: scan in progress ...
May 6 11:41:42 acsd: selected channel spec: 0x1008 (8)
 

ColinTaylor

Part of the Furniture
I would start by changing the 2.4 GHz channel from automatic to 11 and the bandwidth from 40MHz to 20MHz as your neighbour's WiFi is forcing it into those settings anyway.
 

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