Hartelijke dank.
het lijkt opgelost te zijn.
Ik heb de nieuwste driver gedownload van Intel (inmiddels trouwens versie 9.04.13). In de release notes het periodiek verliezen van contact overigens een 'known issue'. Jammer dat Toshiba geregistreerde klanten daar niet op attendeerd.
http://support.intel.com/support/wirele ... 022509.htm
Some wireless LAN client connections are intermittently dropped from some networks followed by a new client association to either the same Access Point or another Access Point. Some applications may lose their connections.
Wireless LAN protocol analyzer traces will reflect a high number of retransmissions to the client. Access Point logs may reflect affected clients not authenticated because of too many retries.
This topic applies only to the following adapters:
* Intel® PRO/Wireless 2915ABG Network Connection
* Intel® PRO/Wireless 2200BG Network Connection
This topic applies only to adapters using driver version 9.0.4.8 or earlier.
This issue does not occur on all computers or on all networks.
Cause:
A timing issue in the driver causes clients to sometimes drop frames for a long enough period to cause disconnects in some environments.
Solution:
This issue will be resolved by upgrading the driver software to version 9.0.4.13.
The new driver will be included with Intel® PROSet/Wireless software version 10.1.1 which is scheduled for release in May 2006.
Work Around:
One of the following work arounds can be implemented as a temporary solution.
1. Configure the access points to use long preamble.
2. Enable 1 Mbps data rate on the access points.
Iedereen bedankt voor het meedenken.