Bad performance in wireless Network (802.11b)

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Guest

Hi,
Although my application perform nicely in wired network, the performance in wireless network is very bad (I have tested in 802.11b). Would appreciate if anyone could suggest how I can improve the performance in the wireless network. Any one has tried running application in 802.11b vs 802.11g? I am developing it using vb.net, ado.net and SQL server for database
Thanks
Al
 
I had that same problem....Here's the things I tweaked. Is your normal
network access to the internet or shared drives slow, as well.

1. Not knowing what type of access point your using. Check the channel,
try a different channel if possible.

2. Check out your mtu's on your tcpip protocol, you might need to drop
it alittle.

3. If you access point allows disconnects, disallow this.

Without knowing what type of equipment your using, I'm just hitting on
some common points.
 
Thanks Terry, did you improve your application after tweaking with these parameters
I am using LinkSys Access point 802.11b 11MBS
1. How can i change the Channel
2. Where would i look to change the MTU on the TCPI
3. I don't know from where i can disallow for the disconnect
Thanks agai
Al
 
I've worked with 3Com, Netgear and Cisco, but I assume Linksys would
allow you to modify some of these settings.

Where I use to work at, I installed wireless access points at all of our
offices. Our salespeople used wireless notebooks, Toshiba tablet pc's
and PDA's. So they could go to any office in the company and have
access to the network, databases, etc.


Keep in mind about the following:

How much data are you dealing with on your selects, updates and inserts.
More than likely, your wired network is running at 100 mbits at least,
your wireless is only running 11 mbits, that's quite a difference in
bandwith.

If the datatable/datasets your dealing with are small, your network
access to shared resources and web browsing is excessively slow then I'd
start checking out the following.


1.This would be my first task. Most wireless pc's etc... allow you to
display the signal strength their receiving. Have you looked at that,
to see what kind of signal, your getting.

Look for:

Is the signal strength always low.
Does the signal strenght flunctuate over a wide range.

If this is the case, change the channel on your linksys, the pc should
automatically find the channel or you can set it manually on the
wireless driver setup.


2. If the signal strength is decent and not flunctuating all over the
scale. The tcpip stack on the linksys and your notebook should allow
you to modify the mtu settings.

3. Allow for asynch or disconnects is on the access point in the
configuration.
 
Terry
that is very interesting my application is in healthcare with wireless tablet PC, require accessing rows of data. I have been monitoring the signals and it is Strong without much flunctuations. Web access is ok. I am thinking of switching to 802.11g with 54MPS at least half of the wire connection. But before that i need to see if there are other ways i can improve the performance.
Thanks for the info
Al
 
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