Dropping issues with 5 GHz on TP Link Archer A6 V3

Installing and Using OpenWrt
1

I have recently installed OpenWRT on TPLink Archer A6 V3 after it was supported in the latest OpenWRT release. While everything is okay , the 5GHz WiFi goes away after a day or so. When I say goes away, I can see the radio ON in OpenWRT but the SSID is not seen by any device. I have tried restarting the radio but that doesnt help. The only thing that solves it is a restart of the router.
Cant find anything in the logs or maybe I am not looking at the right place. Can someone help on this, I have seen the same issue being reported on the thread where support was added for this device in OpenWRT , so I guess others may also be facing it.

Thanks for your help

2

Set the channel to 36 (should not be on auto) and the check for a while.

3

nope , does not help, it is already set to 36 and is not crowded.

4

SSH in to the router and run cat /etc/config/wireless.

Redact the passwords in the "option key" sections.

Post the results in preformatted text, by using the icon highlighted in red...

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5

I faced this issue a long time ago.. you can either try a snapshot build to see if problem still exists or switch to c6v3.2 firmware (both hardware are same)

6

I'm facing the same issue

7

Sorry @anon89577378 , didnt see your message earlier. Here you go

config wifi-device 'radio0'
        option type 'mac80211'
        option channel '11'
        option hwmode '11g'
        option path '1e140000.pcie/pci0000:00/0000:00:00.0/0000:01:00.0'
        option htmode 'HT20'
        option country 'IN'
        option cell_density '0'
        option noscan '1'

config wifi-iface 'default_radio0'
        option device 'radio0'
        option network 'lan'
        option mode 'ap'
        option encryption 'psk2'
        option ssid 'EAGLE_EXT'
        option key '*******'

config wifi-device 'radio1'
        option type 'mac80211'
        option hwmode '11a'
        option path '1e140000.pcie/pci0000:00/0000:00:01.0/0000:02:00.0'
        option htmode 'VHT80'
        option country 'IN'
        option cell_density '0'
        option channel '40'

config wifi-iface 'default_radio1'
        option device 'radio1'
        option network 'lan'
        option mode 'ap'
        option encryption 'psk2'
        option ssid 'EAGLE_5_8'
        option key '*******'

config wifi-iface 'wifinet2'
        option device 'radio0'
        option mode 'ap'
        option ssid 'EAGLE'
        option encryption 'psk2'
        option key '*******'
        option disabled '1'
8

There is a similar issue with this that is being discussed here but not entirely sure if this is the same issue.
I am not an advanced user (yet) and do not know the pitfall of going to a snapshot version. So unless I know it will solve the issue, am a bit reluctant to try it out.

9

It could be related...

As a test, there are a couple of things you can try...

Change the channel width from 80 to 40, and then 40 to 20 on the 5 Ghz band

Check that WMM is enabled.

A snapshot is experimental, but I've used them a few times for testing.

Some bugs have been fixed, and some may be introduced.

Since snapshots change daily, the biggest thing is trying to install packages on an "expired" snapshot

Snapshots do not include the LuCI interface, so you would need to install that after.

SSH in to the router -

opkg update && opkg install luci-ssl
10

I am currently on Snapshot since months, using attended sysupgrades to update and chef.libremesh to create snapshots with luci if the need arises.