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I have this problem on dual band networks running G and N, my wifi nic grabs 2 IP addresses. What is strange is ifconfig only shows the interface having 1 IP address, but "ip" command shows 2. This is a Qualcomm Atheros AR9462 in a hp 9470m laptop.
I have no idea how it went from enpl0s25 to wl01....
2: enp0s25: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP group default qlen 1000
link/ether a0:48:1c:dc:49:d2 brd ff:ff:ff:ff:ff:ff
inet 10.128.8.58/24 brd 10.128.8.255 scope global dynamic enp0s25
valid_lft 690857sec preferred_lft 690857sec
inet 10.128.8.94/24 brd 10.128.8.255 scope global secondary enp0s25
valid_lft forever preferred_lft forever
wlo1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP group default qlen 1000
link/ether 3c:77:e6:21:92:41 brd ff:ff:ff:ff:ff:ff
inet 10.130.119.94/16 brd 10.130.255.255 scope global dynamic wlo1
valid_lft 28122sec preferred_lft 28122sec
inet 10.130.235.0/16 brd 10.130.255.255 scope global secondary wlo1
valid_lft forever preferred_lft forever
here is ifconfig only showing 1 IP
wlo1: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet 10.130.119.94 netmask 255.255.0.0 broadcast 10.130.255.255
ether 3c:77:e6:21:92:41 txqueuelen 1000 (Ethernet)
RX packets 3485 bytes 2218766 (2.1 MiB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 2845 bytes 476535 (465.3 KiB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
So my idea is to disable G or N on the card/for that network so i can only get 1 IP and then beable to send/receive traffic because with the 2 addresses i have no working internet.
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What does "lshw -class network" print?
Especially the "configuration: (...) driver= " entry might be interesting regarding your device duplication...
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