sorry for the words

There was no delay between logging onto Windows XP connection on the internet... (its fast)
but
my wireless network connection very slow when i using the google chrone, internet ex. fb, google, yahoo, etc, for 40second-1 min lost of connection when i reboot it will back to normal and then lost again but the signal is excellent

for my Dell inspiron laptop, window 7 home prenium, processor Intel(R) core(TM) i3-2310M CPU @ 2.10GHz 2.10 GHz, memory: 6GB, OS: 64bit.... my 192.168.0.1
firmware: 5.10 version
802.11 Mode : mixed 802.11n, 802.11g, and 802.11b
Wireless Channel : 2.412 GHz chnnl 1
Channel Width : auto 20/40MHz
signal: exellent
security type: WPA-PSK
radio: 802.11n
how i going to fix it?