Wifi 5ghz drops and cannot reconnect

rn170uk

Occasional Visitor
I've had this a couple of times now.... my RT-AC86U running 386.3.2 drops the 5Ghz network and then won't allow devices to connect until it's rebooted.

My log has:

Jan 18 18:26:26 wlceventd: wlceventd_proc_event(527): eth5: Auth 90:61:AE:**********, status: Successful (0), rssi:0
Jan 18 18:26:26 wlceventd: wlceventd_proc_event(537): eth5: ReAssoc 90:61:AE:*******, status: Successful (0), rssi:0
Jan 18 18:26:26 kernel: br0: received packet on eth5 with own address as source address
Jan 18 18:26:27 dnsmasq-dhcp[2463]: DHCPREQUEST(br0) 192.168.1.xxx 90:61:ae:********
Jan 18 18:26:27 dnsmasq-dhcp[2463]: DHCPACK(br0) 192.168.1.xxx 90:61:ae:******* DEVICENAME
Jan 18 18:26:57 miniupnpd[2297]: upnp_event_process_notify: connect(192.168.1.xxx:2869): Connection timed out
Jan 18 18:27:01 miniupnpd[2297]: upnp_event_process_notify: connect(192.168.1.xxx:2869): Connection timed out
Jan 18 18:27:13 miniupnpd[2297]: upnp_event_process_notify: connect(192.168.1.xxx:2869): Connection timed out
Jan 18 18:27:14 miniupnpd[2297]: upnp_event_process_notify: connect(192.168.1.xxx:2869): Connection timed out
Jan 18 18:27:14 miniupnpd[2297]: upnpevents_processfds: 0x71c968, remove subscriber uuid:9aa1f22e-****-48e7-9dc0-b842fc34dafb after an ERROR cb: http://192.168.1.xxx:2869/upnp/eventing/ppobxhniym
Jan 18 18:27:26 wlceventd: wlceventd_proc_event(491): eth5: Deauth_ind 90:61:AE:*******, status: 0, reason: Unspecified reason (1), rssi:0
Jan 18 18:27:26 wlceventd: wlceventd_proc_event(508): eth5: Disassoc 90:61:AE:******, status: 0, reason: Disassociated because sending station is leaving (or has left) BSS (8), rssi:0
Jan 18 18:27:35 miniupnpd[2297]: upnp_event_process_notify: connect(192.168.1.xxx:2869): Connection timed out
Jan 18 18:27:35 miniupnpd[2297]: upnp_event_process_notify: connect(192.168.1.xxx:2869): Connection timed out
Jan 18 18:27:35 miniupnpd[2297]: upnpevents_processfds: 0x71c8a0, remove subscriber uuid:a98df8ff-****-4928-8c7b-1b2e71464c23 after an ERROR cb: http://192.168.1.xxx:2869/upnp/eventing/stamokltma
Jan 18 18:29:04 kernel: IGMPV3 type=ef
Jan 18 18:29:04 kernel: IGMPV3 type=35
Jan 18 18:29:04 kernel: IGMPV3 type=ce
Jan 18 18:29:04 kernel: IGMPV3 type=0
Jan 18 18:29:04 kernel: IGMPV3 type=0
Jan 18 18:29:04 kernel: IGMPV3 type=0
Jan 18 18:29:04 kernel: IGMPV3 type=0
(and many more)

The machine is question went into sleep mode, so I think those events are a red-herring, but once the IGMPV3 errors start, that's it.
If I try, I just get - Windows was unable to connect to the network (or something like that). 2.4ghz is still working ok though.

I've found one thread only here - https://www.snbforums.com/threads/asuswrt-merlin-386-2-is-now-available.71625/post-686750
but it doesn't tell me much.

Anyone got any ideas?
 

Morris

Very Senior Member
I've had this a couple of times now.... my RT-AC86U running 386.3.2 drops the 5Ghz network and then won't allow devices to connect until it's rebooted.

My log has:

Jan 18 18:26:26 wlceventd: wlceventd_proc_event(527): eth5: Auth 90:61:AE:**********, status: Successful (0), rssi:0
Jan 18 18:26:26 wlceventd: wlceventd_proc_event(537): eth5: ReAssoc 90:61:AE:*******, status: Successful (0), rssi:0
Jan 18 18:26:26 kernel: br0: received packet on eth5 with own address as source address
Jan 18 18:26:27 dnsmasq-dhcp[2463]: DHCPREQUEST(br0) 192.168.1.xxx 90:61:ae:********
Jan 18 18:26:27 dnsmasq-dhcp[2463]: DHCPACK(br0) 192.168.1.xxx 90:61:ae:******* DEVICENAME
Jan 18 18:26:57 miniupnpd[2297]: upnp_event_process_notify: connect(192.168.1.xxx:2869): Connection timed out
Jan 18 18:27:01 miniupnpd[2297]: upnp_event_process_notify: connect(192.168.1.xxx:2869): Connection timed out
Jan 18 18:27:13 miniupnpd[2297]: upnp_event_process_notify: connect(192.168.1.xxx:2869): Connection timed out
Jan 18 18:27:14 miniupnpd[2297]: upnp_event_process_notify: connect(192.168.1.xxx:2869): Connection timed out
Jan 18 18:27:14 miniupnpd[2297]: upnpevents_processfds: 0x71c968, remove subscriber uuid:9aa1f22e-****-48e7-9dc0-b842fc34dafb after an ERROR cb: http://192.168.1.xxx:2869/upnp/eventing/ppobxhniym
Jan 18 18:27:26 wlceventd: wlceventd_proc_event(491): eth5: Deauth_ind 90:61:AE:*******, status: 0, reason: Unspecified reason (1), rssi:0
Jan 18 18:27:26 wlceventd: wlceventd_proc_event(508): eth5: Disassoc 90:61:AE:******, status: 0, reason: Disassociated because sending station is leaving (or has left) BSS (8), rssi:0
Jan 18 18:27:35 miniupnpd[2297]: upnp_event_process_notify: connect(192.168.1.xxx:2869): Connection timed out
Jan 18 18:27:35 miniupnpd[2297]: upnp_event_process_notify: connect(192.168.1.xxx:2869): Connection timed out
Jan 18 18:27:35 miniupnpd[2297]: upnpevents_processfds: 0x71c8a0, remove subscriber uuid:a98df8ff-****-4928-8c7b-1b2e71464c23 after an ERROR cb: http://192.168.1.xxx:2869/upnp/eventing/stamokltma
Jan 18 18:29:04 kernel: IGMPV3 type=ef
Jan 18 18:29:04 kernel: IGMPV3 type=35
Jan 18 18:29:04 kernel: IGMPV3 type=ce
Jan 18 18:29:04 kernel: IGMPV3 type=0
Jan 18 18:29:04 kernel: IGMPV3 type=0
Jan 18 18:29:04 kernel: IGMPV3 type=0
Jan 18 18:29:04 kernel: IGMPV3 type=0
(and many more)

The machine is question went into sleep mode, so I think those events are a red-herring, but once the IGMPV3 errors start, that's it.
If I try, I just get - Windows was unable to connect to the network (or something like that). 2.4ghz is still working ok though.

I've found one thread only here - https://www.snbforums.com/threads/asuswrt-merlin-386-2-is-now-available.71625/post-686750
but it doesn't tell me much.

Anyone got any ideas?

I suspect the issue is earlier in the log. By any chance are you using DFS channels? If weather or aircraft radar are received by the router, it must immediately stop transmitting on the DFS channel and find another one to use. Usually, service restores within 5 minutes.
 

rn170uk

Occasional Visitor
I suspect the issue is earlier in the log. By any chance are you using DFS channels? If weather or aircraft radar are received by the router, it must immediately stop transmitting on the DFS channel and find another one to use. Usually, service restores within 5 minutes.
"Auto select channel including DFS channels" is checked, should I uncheck that? It certainly doesn't restore after 5 mins. It's down until I reboot.
 

Morris

Very Senior Member
"Auto select channel including DFS channels" is checked, should I uncheck that?

Yes, uncheck "Auto select channel including DFS channels"

Good luck,

Morris
 

Xeyrruken

New Around Here
Done. Will monitor and report back if it happens again - that may be some time as it last happened on Dec 28th.
I'm having the same issue, I have the DFS Channels unchecked. I have around 47 devices on my network, every other day the wifi will drop completely and not let any device back until I fully reboot. This is driving me crazy. I don't find any info nor Asus support is helping, there are people stating that it is a hardware issue more than firmware itself. Let me know if you manage to fix yours. My router since it is new has been merlins and i added fans to avoid heat, the issue has been getting more annoying over time.
 

Morris

Very Senior Member
I suggest you try and swap that router with a new one. Easiest would be at the retailer if they will permit it. Otherwise you will need to do it with Asus Support.

Good luck,

Morris
 

Xeyrruken

New Around Here
I suggest you try and swap that router with a new one. Easiest would be at the retailer if they will permit it. Otherwise you will need to do it with Asus Support.

Good luck,

Morris
Do you have any recommendation on the same ASUS line?
 

Morris

Very Senior Member
What do you mean by "Same Asus line?"
 

Xeyrruken

New Around Here
What do you mean by "Same Asus line?"
AC or AX, My router by now is out of warranty 1 year exactly and the trouble started, i have always go with ASUS, and this time It's giving me a hard time, maybe its time for me to move on to another asus line up that is still supported by Merlin and that doesn't have many of the apparent hardware issues.
 

Morris

Very Senior Member
The RT-AX86U is one of the most popular with forum members. Mine is rock solid.
 

rn170uk

Occasional Visitor
I'm having the same issue, I have the DFS Channels unchecked. I have around 47 devices on my network, every other day the wifi will drop completely and not let any device back until I fully reboot. This is driving me crazy. I don't find any info nor Asus support is helping, there are people stating that it is a hardware issue more than firmware itself. Let me know if you manage to fix yours. My router since it is new has been merlins and i added fans to avoid heat, the issue has been getting more annoying over time.

Wifi dropped completely on me last night. Had to connect wired and restart. Now it's ok again. Bought mine from Amazon Warehouse (supposedly a damaged box but looked brand new). I doubt they will just replace it with a new one in my case.

The RT-AX86U is around £250. That seems excessive imho.
 
Last edited:

rn170uk

Occasional Visitor
Woke up this morning to just 5Ghz being offline. Reboot fixed. Clearly disabling DFS channels has had no apparent effect.
 

rn170uk

Occasional Visitor
This is getting annoying... 5Ghz dropped again.

IGMPV3 type=45

is the last entry in the log before the router goes haywire. Happy to do whatever is needed to fix this. This problem has got worse since I move my guest wifi to slot 2 and 3, leaving 1 blank - to fix another bug.

Is there a way I can restart just wifi without restarting the entire router?

This time the only recovery was to completely switch it off for 10 seconds and restart.
 
Last edited:

Morris

Very Senior Member
This is getting annoying... 5Ghz dropped again.

IGMPV3 type=45

is the last entry in the log before the router goes haywire. Happy to do whatever is needed to fix this. This problem has got worse since I move my guest wifi to slot 2 and 3, leaving 1 blank - to fix another bug.

Is there a way I can restart just wifi without restarting the entire router?

That might be a hint. You can enable or disable IGMP under Wireless Professional. The setting is Enable IGMP Snooping. If it's enabled, try disabling it and visa versa. Check under both frequencies. It is probably advisable to have them the same on both bands. Also right under it is the Multicast rate. "Auto" makes the most sense for bandwidth efficiency. IGMP is the protocol used to limit the flooding of all interfaces of a switch when there is multicast traffic is enabled is best if it dose not cause trouble. If I recall correctly, the default is disabled. I have mine enabled.

Good luck,

Morris
 

rn170uk

Occasional Visitor
Mine was enabled for both. I've now set it to disabled. Multicast also set to Auto for both bands.
Will report back in the morning.
 

Xeyrruken

New Around Here
Wifi dropped completely on me last night. Had to connect wired and restart. Now it's ok again. Bought mine from Amazon Warehouse (supposedly a damaged box but looked brand new). I doubt they will just replace it with a new one in my case.

The RT-AX86U is around £250. That seems excessive imho.
I gave up, I went in and bought an AX86u, I will keep the AC86u around maybe play a bit with Aimesh. I cant afford to have my wireless drop every hour, some times, or every two days it is just so erratic. Mine mostly drop 2.4Ghz, but yeah i hope the new one works better and I'm not giving it a chance, one drop ba bye asus.
 

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