Just installed Debian Jessie on my new Asus vivobook A55QG
Everything went fine and after installing the firmware-realtek_0.43_all.deb the networkmanager in KDE showed all the available networks.
After a while the same day though it disconnected me from the wifi and stopped showing networks.
So i went to the terminal an did
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root@laptop:/home/jan# iwlist wlan0 scan
wlan0 No scan results
Even after
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root@laptop:/home/jan# ifconfig wlan0 down
and
root@laptop:/home/jan# ifconfig wlan0 up
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root@laptop:/home/jan# lspci -nn | grep Network
01:00.0 Network controller [0280]: Realtek Semiconductor Co., Ltd. RTL8821AE 802.11ac PCIe Wireless Network Adapter [10ec:8821]
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root@laptop:/home/jan# lsmod | grep rtl8821ae
rtl8821ae 523031 0
mac80211 482315 1 rtl8821ae
cfg80211 413730 2 mac80211,rtl8821ae
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root@laptop:/home/jan# uname -r
3.16.0-4-amd64
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root@laptop:/home/jan# ip link
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN mode DEFAULT group default
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP mode DEFAULT group default qlen 1000
link/ether 2c:4d:54:35:fd:61 brd ff:ff:ff:ff:ff:ff
3: wlan0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc mq state DOWN mode DORMANT group default qlen 1000
link/ether f0:03:8c:34:e5:71 brd ff:ff:ff:ff:ff:ff
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root@laptop:/home/jan# iwconfig
lo no wireless extensions.
wlan0 IEEE 802.11abgn ESSID:off/any
Mode:Managed Access Point: Not-Associated Tx-Power=20 dBm
Retry short limit:7 RTS thr=2347 B Fragment thr:off
Encryption key:off
Power Management:off
eth0 no wireless extensions.
[snip]
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01:00.0 Network controller: Realtek Semiconductor Co., Ltd. RTL8821AE 802.11ac PCIe Wireless Network Adapter
Subsystem: AzureWave Device 2161
Kernel driver in use: rtl8821ae
02:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 10)
Subsystem: ASUSTeK Computer Inc. Device 200f
Kernel driver in use: r8169
[snip]
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root@laptop:/home/jan# rfkill list
0: phy0: Wireless LAN
Soft blocked: no
Hard blocked: no
1: asus-wlan: Wireless LAN
Soft blocked: no
Hard blocked: no
root@laptop:/home/jan#