Device is connected to 2 wwan simultaneously

Installing and Using OpenWrt Network and Wireless Configuration
1

I noticed that my Macbook Pro use two wwan network simultaneously. Sometimes it's connect to 5GHz, sometimes it use 5 and 2.4 GHZ.
Occasionally this bug may be cause connection issue:

Tue Jul 23 15:22:57 2019 daemon.info hostapd: wlan1: STA 00:0c:29:64:4d:15 IEEE 802.11: authenticated
Tue Jul 23 15:23:13 2019 daemon.info hostapd: wlan1: STA 00:0c:29:64:4d:15 IEEE 802.11: authenticated
Tue Jul 23 15:24:13 2019 daemon.info hostapd: wlan1: STA 00:0c:29:64:4d:15 IEEE 802.11: authenticated
Tue Jul 23 15:24:57 2019 daemon.info hostapd: wlan1: STA 00:0c:29:64:4d:15 IEEE 802.11: authenticated
Tue Jul 23 15:25:14 2019 daemon.info hostapd: wlan1: STA 00:0c:29:64:4d:15 IEEE 802.11: authenticated
Tue Jul 23 15:25:17 2019 daemon.info hostapd: wlan1: STA 00:0c:29:64:4d:15 IEEE 802.11: authenticated
Tue Jul 23 15:25:17 2019 daemon.info hostapd: wlan1: STA 00:0c:29:64:4d:15 IEEE 802.11: authenticated
Tue Jul 23 15:25:20 2019 daemon.info hostapd: wlan0: STA 00:0c:29:64:4d:15 IEEE 802.11: authenticated
Tue Jul 23 15:25:21 2019 daemon.info hostapd: wlan1: STA 00:0c:29:64:4d:15 IEEE 802.11: authenticated

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Screen Shot 2019-07-23 at 5.33.28 PM.png2206×328 57.7 KB

2

It doesn't surprise me (and I've seen evidence) that a "smart" device authenticates to multiple APs on the same SSID to prepare for roaming, especially if on the same channel.

1 Like
3

Yep i forget make a notice that this two APs has the same name.
How i can prevent this behavior?

4

I have never seen any ill effects of it. Unless you have a tangible problem, I'd leave it alone.

2 Likes
5

That seems normal, even desirable behavior, why is it an issue?

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6

i suspected that it's a cause my phone to jump to wlan with 2.4GHz. Okay maybe i'm wrong.
Just didn't expect such behavior.

7

Phones and other clients are responsible for determining which AP to connect to, not the APs. Some have "good" algorithms, others, well, not so good.

If you want to "force" 5 GHz, then name your SSIDs differently and select in the client (phone) the one you want (and disable the other, as it may still "roam" over to the other one).

3 Likes
8

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