Intel ProSet Wireless command to 'repair' a wireless NIC

I inherited an old Dell D420 which is pre-installed with Win XP 32bit:
often the wireless connection to the office broadband drops & I
have to right-click on the wifi NIC & select "Repair" & this would
restore the Wifi connection.  If I attempt to connect to one of the
scanned/detected Ssid, usually it won't connect & it requires the
"Repair" to connect.

This Wifi on this Win XP is currently managed by Windows but I
found it has an Intel PROSET installed.

Q1:
Is Intel PROSET more stable or letting Windows manage it gives
a more 'stable' wifi connection or it's the same?

Q2:
I plan to run batch (.bat or .cmd) script every few mins to check
its connectivity to internet & if there's no connectivity, the script
triggers a "Repair" : in another EE thread, an expert has found
that there's no such command for Win XP though there's a
command for Win 7.    As the laptop has Intel PROSET, is there
a command to do this "Repair" ?  or at least "Disable" & then
"Enable" the Wifi NIC?  Pls give exact command
sunhuxAsked:
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nobusCommented:
what i would do is try the Intel proset  - you can always return to the windows one if need be
now -where i would start is updating all drivers, starting with chipset - then test againyou find the drivers here :  http://www.dell.com/support/home/us/en/19/product-support/product/latitude-d420/drivers

i'm assuming you have XP SP3 ?
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gheistCommented:
You need to find source of problem. Can you manage linux with network card in monitor mode?

Namely why association with AP is disappearing. While restarting wifi adapter re-triggers association, it is just as useful solution as rebooting computer every 5 minutes.
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☠ MASQ ☠Commented:
Also consider that the WiFi module on the systemboard could be faulty and failing to maintain a connection.
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Mohammed KhawajaManager - Infrastructure:  Information TechnologyCommented:
From my experience, using Windows to manage WIFI is a lot easier and reliable.  Have you tried letting Windows manage and if so, does the problem still happen?
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sunhuxAuthor Commented:
> i'm assuming you have XP SP3 ?
Yes

> tried letting Windows manage and if so, does the problem still happen?
It's precisely while Windows manage the Wifi the last few months on this
Win XP laptop as well as on a Win 7 (& my other colleagues' Win 7 laptops
as well), that we're seeing this "disconnection".

I don't have access to the Wifi AP ie the Wifi Broadband router's admin

>WiFi module on the systemboard could be faulty and failing to maintain a connection
Can't be as numerous laptops are facing this issue within that 36 sq meter room
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gheistCommented:
It all boils down to access point. Fix it and rest will follow.
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☠ MASQ ☠Commented:
Can't be as numerous laptops are facing this issue within that 36 sq meter room
This is the missing piece of the jigsaw, despite you not having permissions for the AP this is what needs fixing.
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nobusCommented:
what is the signal level for all these?  is it high - medium or low?
otherwise, install a wi-fi booster - here 6 presented :  http://www.trustedreviews.com/best-wifi-extenders_round-up
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sunhuxAuthor Commented:
Would say the root cause if the Wifi broadband as MASQ points out.

At my home, both the same laptops that I carry to office never have this issue,
so this points to the office Wifi broadband : unfortunately I don't have access
to it

Signal level fluctuates between 1 to 4 (out of perfect 5)
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gheistCommented:
"signal level flictuates" means that AP is on same band as other actively used AP, just use inssider v3 or somemobile survey tool and change AP channel to less noisy one.
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nobusCommented:
>>  Signal level fluctuates between 1 to 4   <<  that tells us where the probnlem isboost the signal -  or use a cable
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☠ MASQ ☠Commented:
change AP channel to less noisy one
Good in theory but the OP doesn't have access to the AP settings.
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gheistCommented:
One can ask AP admin to select different channel... Should not hurt a lot.
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