Losing Internet connection

I keep losing my internet connection. I have a Liinksys X2000 router/modem and the adsl light is still flashing but the wireless internet connection is not available. I tried Cico Connect to repair and it could not do so even after shutting the router down for 2 mins as suggested by Cisco. I then used the Windows 7 troubleshooter which said it would try to repair the connection, however it said it could not find the problem but by then I had the internet connection available. Laptop Compaq CQ56 Win7 SP1.
Is there an existing log file that will let me see what happens with the connection or can a log file be generated.
I also have the CD/DVD for win7 SP2 but am afraid to install it in case I make the problem worse.
Can you help please
Teriel9Asked:
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JohnBusiness Consultant (Owner)Commented:
Check and see if one of the power managers is turning off the wireless.

(a) Check in Device Manager, Wireless Device, Properties, do not allow card to be turned off.
(b) Windows Power Manager, Wireless, set to Maximum Performance AC and Battery.
(c) Third party wireless manager (if one), set to Maximum Performance.

... Thinkpads_User
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Teriel9Author Commented:
Many thanks for your prompt reply, have adjusted the settings as recommended and will hope it cures it. What are your feelings re Win7 SP2 please?
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JohnBusiness Consultant (Owner)Commented:
By the way, I went back and checked. The most recent Service Pack for Windows 7 is SP1. That has been out a long while now (over a year) and I have had it running all that time. No issues with wireless. However, I did have to set power management as above or I would lose my connection.

You might try looking for an upgraded wireless adapater driver and update your wireless card.  .... Thinkpads_User
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Teriel9Author Commented:
You ended a very long search for an answer to this problem, Many thanks for your clear fulsome advice.
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JohnBusiness Consultant (Owner)Commented:
Thank you, and I was pleased to assist. ... Thinkpads_User
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