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my wifi wont stay connected, sometimes it disconnects. other times it says its still connected but i cant load any pages etc. is there any way to fix this? i just installed ubuntu 14 latest.

output of

sudo lshw -class network

*-network
description: Wireless interface product: BCM43142 802.11b/g/n vendor: Broadcom Corporation physical id: 0 bus info: pci@0000:08:00.0 logical name: wlan1 version: 01 serial: you dont need this width: 64 bits clock: 33MHz capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless configuration: broadcast=yes driver=wl0 driverversion=6.30.223.248 (r487574) ip=192.168.1.220 latency=0 multicast=yes wireless=IEEE 802.11abg resources: irq:18 memory:b2500000-b2507fff

output of

lspci

08:00.0 Network controller: Broadcom Corporation BCM43142 802.11b/g/n (rev 01)

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