We use a Cisco 350 PCMCIA for network communication on cranes.

Some cranes lose the network contact to the access point while driving or staying in bad points of a hall, because of a too weak signal and/or signal overlays. This happens about one or two times per week.

If the interruption lasts longer than 5 seconds, the network connection in the systray is deactivated.

When the signal is back in a sufficient strength, there is still no connection to the network (systryicon is disabled; ping does not work). Only if you click in the Aironet Client Monitor on reauthenticate, the connection is up again.

I tried already:

WindowsXP-KB826942 (Windows XP-Supportpatch für Wireless Protected Access)

and Q239924 (disable Media Sense for TCP/IP in Windows)

SP2 seems to solve the problem, but at the moment it is not possible to install ServicePack 2 because of IT Guidelines in the Enterprise.

Is there a possibility to extend the Timeout of 5 seconds ?

Can we automate the reauthentication process?

Can we optimize the clientsettings ?

Details:

Windows XP SP1

current driver version of the Cisco Card

Network Security Settings:

Network Authentication - NONE

DATA Encryption – Static WEP Key

ACCESS POINT Authentication - OPEN

Greetings,

Lars