Linksys EA8500 No Internet after 2.4GHz WiFi Enabled

Recently, I experience difficulty in using OpenWrt. I reported it as a bug (#20302).

Is there anybody see such a problem happened before?

Your bug description doesn't explain your Internet connectivity.

Edit:

It also failed to mention that you're using a custom image. Did that change from the other bug report?

In bug report you got either config copied from immortalwrt or ai generated. Please do a minimal configuration on top of default installation then lets see if it is still broken.

Please connect to your OpenWrt device using ssh and copy the output of the following commands and post it here using the "Preformatted text </> " button:
grafik
Remember to redact passwords, VPN keys, MAC addresses and any public IP addresses you may have:

ubus call system board
cat /etc/config/network
cat /etc/config/wireless
cat /etc/config/dhcp
cat /etc/config/firewall
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In the bug report, I mentioned it is 'Official downloaded image'. Also the Internet connection is via the WAN port of WiFi router. And the issue only happens to 2.4GHz WiFi. The 5Ghz WiFi in the same router will not have any problem. The problem occurs within the WiFi router, nothing beyond the WAN port ...... I expect somebody has the same WiFi router to repeat the test.

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We currently don't even know what router you're using. And, we don't need to repeat the test in many cases -- we need to see the config as requested by @brada4

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Yes, but I mentioned because your other bug report called the Firmware Selector official, so I wanted to ensure isn't a custom image downloaded from there.

You lost me on this statement. Your report says you can't ping the Internet.

Linksys EA8500 WiFi Router

(@C0deView - it helps if all the information were posted in one location.)

Edit 2:

Your expectation is usually quite rare, but you're in luck!

Another user also made a post about the same hardware today:

The information you provided is greatly helpful! When more than one user report the same or similar problem, the problem is a real problem ......

After I read the 2 other topics from other users (Openwrt 24.10.2, enable wifi = no internet access and V24.10.0 on EA8500 - had to change WAN Mac address), I confirmed all these issues have the same root cause - MAC address conflict!

My solution to solve this problem is very simple:

  1. Via LuCI, click 'Network -> Wireless -> Edit -> Interface Configuration -> Advanced Settings -> MAC address -> randomly generated -> Save'.
  2. Or login with ssh in terminal, then run following commands in router:
uci set wireless.radio0.cell_density='0'
uci set wireless.default_radio0.macaddr='random'
uci commit

The WiFi MAC address from 'driver default' will cause problems. Hope this bug in the default settings of official downloaded image will be fixed in next release.

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You may wish to note this issue in the bug report if you haven't done so already.

I followed your directions via LuCI for both radios. Both radios are on now and routing is good.

It would have taken a while to come up with that solution since the MAC addr’s are not shown in the config files like in an obvious place like the network file.

Please confirm that in GH and close the other issue. It is not a general problem (was in kernel 4.4) but one platform or device should not be broken bc of matching MAC addresses. It might be as simple as MAC+1 in OEM FW lost somewhere in development…

My solution is just a workaround or temporary fix. The bug #20302 is fixed in the latest snapshot. But if you need web GUI in snapshot, you have to use ssh and apk commands to install LuCI manually after installation ( apk update && apk add luci luci-ssl).