Wireless Seamless connectivity problem for distributed application for Axim v51

[ashiniraj]

Hi there,

I have a Dell Axim v 51 PDA.

I have developed one multi user distributed application, which works on desktop, laptops and pdas.

The application works in a heterogeneous networking environment, there are some desktops connected in a wired network with one server.

In addition, the laptops and PDAs are connected with wireless network. The network is spanned over a building in which there are wireless access points at every 50 feet.

To brief up about the application backend. The application on the PDA uses web services located on the server through the wireless access points.

We are facing following problems while working with the PDA.

1. At every 2 minutes… when PDA is on battery we have done setting that it is switched off automatically. So when the user powers it on again at that time though the PDA is in network range of access point and the application will be on. Now it takes almost 10 seconds to get back to the network. Till that time the user keeps getting error network not available. Do we have any specific settings that makes this reconnection more speedy.

2. the same above case happens when we get out of the range of wireless network and then get back in the network.

3. Some times until a long time lets say 2 - 3 minutes, it does not get back in the network. And when we go in utility in PDA of Dell WLAN utility and try to ping. We are not able to renew the ip address. The ip address keeps showing 0.0.0.0. and then we need to restart the pda that is the only option left with us.

4. How does the PDA behave when it switches between 2 access points? Do we need to handle that specifically in the code.

[DarkGenesis]

While this is not a fix for you, I roughly have the same problem with my X51V as well. I am currently using the A12 ROM, something you might need to look into on your PDA's. If you do have a PDA's with the A06 ROM and a A12 ROM as well you are on your way to having a some test beds to play with.

Personally I am thinking along the lines of a program or setting that will keep your WiFI "Always ON" and has a quick reload / authorization into your network environment.

I'll look into the registry and see if I can find anything along those lines. I am sure some of the members here will able to enlighten you more on this subject.

[Mahstah]

ashiniraj-

Dell recently released a wifi chipset driver update that claims to address your exact problem. See this article for more information.

-Mahstah