Re: ping time out trouble , help
- From: v-mileli@xxxxxxxxxxxxxxxxxxxx (Miles Li [MSFT])
- Date: Thu, 27 Nov 2008 10:13:05 GMT
Hello,
Thank you for posting here. Also thanks for the input from Dave.
According to your description, I understand that:
From the client that connect to the SBS network through wirelessconnection, Ping packets get lost discontinuously.
If I have misunderstood the problem, please don't hesitate to let me know.
Suggestions:
==========================
Agree with Dave that you should first narrow down the issue to check
whether there is any device in the scope that interfere the wireless. You
may change the channel to 1, 6, or 11 to check whether the issue persists.
Moreover, please also check how it works if you PING with small MTU. To
check it out, I suggest you perform the following command:
Ping <SBS IP address> -f -t -l 1000
Try a smaller buffer size such as 1000 to identify the largest full packet
you could send (Ethernet has a maximum frame size of 1500B). After we get
the proper MTU for the intermediate network device, we could modify the
following registry value to specify the acceptable MTU size for clients.
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters\Interf
aces\<ID for Adapter>
Value Name: MTU
Value Type: REG_DWORD
Value date: such as 1300 (decimal)
Information needed:
==========================
1. Will the issue also happen when you Ping the wireless router from
wireless clients?
2. On the wireless client, is there any wireless NIC management tool that
can show the NIC performance such as how many corrupt packets have been
received? If there is, what it says?
More information for your reference:
===========================
314825 How to Troubleshoot Black Hole Router Issues
http://support.microsoft.com/default.aspx?scid=kb;EN-US;314825
HOW TO: Change the Default Maximum Transmission Unit (MTU) Size Settings
for PPP Connections or for VPN Connections
http://support.microsoft.com/kb/826159
Recommended TCP/IP settings for WAN links with a MTU size of less than 576
http://support.microsoft.com/kb/900926/en-us
Best regards,
Miles Li
Microsoft Online Partner Support
Microsoft Global Technical Support Center
Get Secure! - www.microsoft.com/security
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- References:
- ping time out trouble , help
- From: calderara
- Re: ping time out trouble , help
- From: Dave Nickason [SBS MVP]
- Re: ping time out trouble , help
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