Unable to reconnect to Archer C80 Wifi Network
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Hello,
I got a very strange problem with my wireless connections. The problem started when I activated the 2.4GHz Wifi connection beside the 5Ghz one. If my laptop goes in sleeping mode being connected to 5Ghz Wifi after 10 minutes the laptop cannot connect anymore to that Wifi again ...it shows "It cannot connect to that network" error message..I have to disable the 2Ghz Wireless via Tether app on my Ipad..so that my Win10 laptop can connect again to that 5Ghz wifi..the other four wifi devices connected to 5GHz Wifi are working fine at the same time so there is no disconnect!..the problem comes up if the lease expires or the device is going offline for more than 10-15 minutes..then the device cannot connect again to the 5Ghz Wifi network..unless the 2.4Ghz Wifi is disabled or I reboot the router..
I got my Archer in router mode connected(PPPoE) to an optical converter being in bridge mode (Huawei) . Strange that It worked fine until I activated the 2.4Ghz Wifi (without Smart Connect) for my new webcam...I got the issue less often now using permanent leases but with a normal lease it came up every time at lease expiration!
my DHCP settings:
The system log after losing the connection and being unable to reconnect to the Wifi:
1 INFO 0days, 00:00:05, [lan]LAN: Set interface br-lan0 ip=192.168.0.1 netmask 255.255.255.0.
2 INFO 0days, 00:00:23, [httpd]Http server start!
3 INFO 0days, 00:00:25, [wan]Wan ethernet port plug on.
4 INFO 0days, 00:00:26, [pppoe]try special dial type 0
5 INFO 0days, 00:00:26, [pppoe]TX PADI
6 INFO 0days, 00:00:27, [pppoe]RX PADO, AC-NAME=ftth, AC-MAC=88-86-03-3d-0f-9e
7 INFO 0days, 00:00:27, [pppoe]TX PADR
8 INFO 0days, 00:00:27, [pppoe]RX PADS[session=0455]
9 INFO 0days, 00:00:27, [ppp][LCP]RX CONFIGURE_REQUEST
10 INFO 0days, 00:00:27, [ppp][LCP]TX CONFIGURE_REQUEST
11 INFO 0days, 00:00:27, [ppp][LCP]TX CONFIGURE_ACK[mru=1492, auth=C023/5, magic=5F158AE8]
12 INFO 0days, 00:00:27, [ppp][LCP]RX CONFIGURE_ACK[mru=1480, magic=00005EEA]
13 INFO 0days, 00:00:27, [ppp][PAP]TX AUTHENTICATION_REQUEST
14 INFO 0days, 00:00:27, [ppp][PAP]RX AUTHENTICATION_ACK
15 INFO 0days, 00:00:27, [ppp][IPCP]RX CONFIGURE_REQUEST
16 INFO 0days, 00:00:27, [ppp][IPCP]TX CONFIGURE_REQUEST
17 INFO 0days, 00:00:27, [ppp][IPCP]TX CONFIGURE_ACK[ip=10.0.0.1]
18 INFO 0days, 00:00:27, [ppp][IPV6CP] RX something, but we will not negotiate it.
19 INFO 0days, 00:00:27, [ppp][LCP]TX PROTOCOL_REJECT
20 INFO 0days, 00:00:27, [ppp][IPCP]RX CONFIGURE_NAK
21 INFO 0days, 00:00:27, [ppp][IPCP]TX CONFIGURE_REQUEST
22 INFO 0days, 00:00:27, [ppp][IPCP]RX CONFIGURE_ACK[ip=79.114.210.10, dns=193.231.252.1/213.154.124.1]
23 INFO 0days, 00:00:27, [dhcps]Send OFFER with ip 192.168.0.11.
24 INFO 0days, 00:00:27, [pppoe]ppp0 set localIp 79.114.210.10 remoteIp 10.0.0.1 mtu 1480
25 INFO 0days, 00:00:27, [wan]advanced ddns -wanChanged
26 INFO 0days, 00:00:27, [wan]systool sntpc -sntpRequest
27 INFO 0days, 00:00:27, [dnsproxy]Register Dns Detect
28 INFO 0days, 00:00:27, [dnsproxy]Register primary = 0x1fce7c1, secondary = 0x17c9ad5
29 WARNING 0days, 00:00:27, [cwmp]cwmp is not start
30 INFO 0days, 00:00:28, [dhcps]Send ACK to 192.168.0.11.
31 WARNING 0days, 00:02:37, [dhcps]Lease host name not found.
As soon as I disabled the 2Ghz Wifi, my laptop got reconnected to 5Ghz Wifi at the same time...
is this a bug?
Thanks
Hello @Kevin_Z ,
My laptop is a Swift SF514-51, the Wifi device ( Qualcomm Atheros QCA61x4A Wireless Network Adapter) firmware is up to date, I used the router for 3 months without any problems with the 5Ghz Wifi alone...problems started when I enabled the 2Ghz Wifi as well.. and never had any issues with my previous router (netgear) before:
To simulate the issue I gave 4 times an "ipconfig /release" command and for the fourth time the issue happened again! I could not connect back to the 5Ghz nor 2Ghz Wifi network with the laptop. My Iphone worked fine at the same time over the 5Gz Wifi but when I disabled its Wifi it could not reconnect back either! it seems that from that point on the router went into "zombie" modus,,. as a workaround I disabled the 2Ghz Wifi and then the laptop and Iphone got reconnected back to the 5Ghz Wifi alone..
See the Router logs below..with NOK is when the problem occured:
Strange that my laptop sends its hostname to the router.. but the router cannot read it...that appeared as "Unknown" name here :
Please find attached the tcpdump from wireshark tool when I released and reconnected the laptop to Wifi. I hope it helps....
Thanks
