tente ajustar o tamanho do buffer
sudo echo 83886080 > /proc/sys/net/core/wmem_max
Alguns dias atrás, comecei a ter esse problema.
Quando tentei me conectar a qualquer conexão WiFi, ela ficava conectada para sempre e, depois de um minuto, ela me pedia a senha novamente.
O estranho é que isso aconteceu do nada, eu não instalei nenhum driver novo ou algo assim. Depois que isso aconteceu, decidi desinstalar o Ubuntu e instalá-lo novamente ("dentro do Windows"), mas o problema ainda está lá. Qualquer sugestão seria muito apreciada.
0: hp-wifi: Wireless LAN
Soft blocked: no
Hard blocked: no
1: hp-bluetooth: Bluetooth
Soft blocked: yes
Hard blocked: no
2: phy0: Wireless LAN
Soft blocked: no
Hard blocked: no
description: Ethernet interface
product: RTL8111/8168B PCI Express Gigabit Ethernet controller
vendor: Realtek Semiconductor Co., Ltd.
physical id: 0
bus info: pci@0000:07:00.0
logical name: eth0
version: 06
serial: 2c:27:d7:aa:e4:7d
size: 10Mbit/s
capacity: 1Gbit/s
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress msix vpd bus_master cap_list ethernet physical tp mii 10bt 10bt-fd 100bt 100bt-fd 1000bt 1000bt-fd autonegotiation
configuration: autonegotiation=on broadcast=yes driver=r8169 driverversion=2.3LK-NAPI duplex=half firmware=rtl8168e-3_0.0.4 03/27/12 latency=0 link=no multicast=yes port=MII speed=10Mbit/s
resources: irq:50 ioport:4000(size=256) memory:c0404000-c0404fff memory:c0400000-c0403fff
*-network
description: Wireless interface
product: Centrino Wireless-N 1000
vendor: Intel Corporation
physical id: 0
bus info: pci@0000:0d:00.0
logical name: wlan0
version: 00
serial: 00:1e:64:09:9c:58
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless
configuration: broadcast=yes driver=iwlwifi driverversion=3.2.0-23-generic-pae firmware=39.31.5.1 build 35138 latency=0 link=no multicast=yes wireless=IEEE 802.11bgn
resources: irq:52 memory:c4500000-c4501fff
*-network
description: Ethernet interface
physical id: 1
bus info: usb@2:1.2
logical name: eth1
serial: ee:85:2f:7d:80:96
capabilities: ethernet physical
configuration: broadcast=yes driver=ipheth ip=172.20.10.2 link=yes multicast=yes
tente ajustar o tamanho do buffer
sudo echo 83886080 > /proc/sys/net/core/wmem_max
Tags wireless intel-wireless