RE: Wireless Connectivity

Not sure if this will help in your situation but I have had several wireless
related issues resolved by reducing lease times on the DHCP server

"Blenky" wrote:


I know this may or may not be SBS directly related but I am having
issues with mobile laptops in our configuration. We are currently
using Offline Folders and just recently we have started seeing the
behavior where our wireless laptops would constantly go "Offline".
This causes failure to be able to reach mapped drives as well as
inability to print while that little Offline computer is in the task
tray. We are still able to surf the Internet, our connection to
Exchange via Outlook is fine so I don't believe that we are truly
Offline -- something else is wrong.

I have been seeing many a couple log entries repeatedly in the laptop
computers that indicate it is a connectivity issue of some sort but no
cables have changed or anything and I have tried changing the Channel,
etc, on the AP.

Here are some of the events in the event log that come up constantly
throughout the day (In my experience on non-SBS, larger environments I
have never run into these issues, but it seems more like a DHCP or DNS
issue possibly in conjunction with the wireless - although wired
clients do not seem to have any problems at all):


--------------------------------------------------------------------------------------

Event Type: Warning
Event Source: DnsApi
Event Category: None
Event ID: 11197
Date: 4/3/2007
Time: 9:49:14 AM
User: N/A
Computer: EDTEC1002
Description:
The system failed to update and remove host (A) resource records (RRs)
for network adapter
with settings:

Adapter Name : {94C5F390-662A-45C8-BD57-657195C63386}
Host Name : EDTEC1002
Primary Domain Suffix : edtec.office
DNS server list :
192.168.10.1
Sent update to server : 192.1.1.1
IP Address(es) :
192.168.10.50

The reason the update request failed was because of a system problem.
For specific error code, see the record data displayed below.

For more information, see Help and Support Center at
http://go.microsoft.com/fwlink/events.asp.
Data:
0000: 51 27 00 00 Q'..

--------------------------------------------------------------------------------------

Event Type: Information
Event Source: Tcpip
Event Category: None
Event ID: 4202
Date: 4/3/2007
Time: 9:49:15 AM
User: N/A
Computer: EDTEC1002
Description:
The system detected that network adapter \DEVICE
\TCPIP_{94C5F390-662A-45C8-BD57-657195C63386} was disconnected from
the network, and the adapter's network configuration has been
released. If the network adapter was not disconnected, this may
indicate that it has malfunctioned. Please contact your vendor for
updated drivers.

For more information, see Help and Support Center at
http://go.microsoft.com/fwlink/events.asp.
Data:
0000: 00 00 00 00 02 00 50 00 ......P.
0008: 00 00 00 00 6a 10 00 40 ....j..@
0010: 02 00 00 00 00 00 00 00 ........
0018: 00 00 00 00 00 00 00 00 ........
0020: 00 00 00 00 00 00 00 00 ........


--------------------------------------------------------------------------------------
Event Type: Warning
Event Source: W32Time
Event Category: None
Event ID: 14
Date: 4/3/2007
Time: 9:49:43 AM
User: N/A
Computer: EDTEC1002
Description:
The time provider NtpClient was unable to find a domain controller to
use as a time source. NtpClient will try again in 15 minutes.

For more information, see Help and Support Center at
http://go.microsoft.com/fwlink/events.asp.

--------------------------------------------------------------------------------------

Event Type: Error
Event Source: W32Time
Event Category: None
Event ID: 29
Date: 4/3/2007
Time: 9:49:43 AM
User: N/A
Computer: EDTEC1002
Description:
The time provider NtpClient is configured to acquire time from one or
more time sources, however none of the sources are currently
accessible. No attempt to contact a source will be made for 15
minutes. NtpClient has no source of accurate time.

For more information, see Help and Support Center at
http://go.microsoft.com/fwlink/events.asp.


.

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