New Networking-related KB articles for the week of December 27 – January 2

Here are the latest networking-related Knowledge Base articles for the week of December 27, 2009 – January 2, 2010. Happy New Year! 974841 An update is available for Windows XP to support protocol negotiation for remote procedure call (RPC) over HTTP Authentication 977526 Communication is interrupted periodically when you start a communication from a computer… Read more

New Networking-related KB articles for the weeks of December 13 – December 19 and December 20 – December 26

I hope everyone is enjoying the holiday season. Here are the latest networking-related Knowledge Base articles published in the past 2 weeks: 961186  NDIS 5.x USB network adapters do not appear in Performance Monitor 961256  The DNS PTR record might be deleted if you change the DNS server order on a Windows 2003 machine 977172 … Read more

New Networking-related KB articles for the week of October 25 – October 31

Here are the most recently published networking-related Knowledge Base articles: 975830 The memory usage of the Dns.exe process keeps increasing after you install hotfix 941672 on a computer that is running Windows Server 2003 SP2 and that has the DNS server role installed 975792 Numeric host names cannot be resolved on a computer that is… Read more

New Networking-related KB articles for the week of August 2 – August 8

We have 4 new KB articles that may be of interest this week: 971295 Error message when an application tries to write data to a shared file if another application has read-only access to the same file on a computer that is running Windows Server 2003: “Delayed Write Failed” 970176 A Windows Server 2003 SP2-based… Read more

New Networking-related KB articles for the week of July 26 – August 1

This week, I have 4 new KB articles to share: 974080 DirectAccess Workaround for reaching IPv4 address checking sites 971383 Data loss occurs when the Winsock “recv” function returns 0 bytes if both the client-side and the server-side applications run on the same computer that is running Windows Server 2003 973839 32-bit applications do not… Read more

DNS Client Resolver Behavior

The following question comes up from time to time and for various reasons. What is the expected name resolution behavior of the DNS client resolver on Windows XP or Windows Vista? This may be for a single or for multiple network interfaces. So I thought I would put together a brief overview of what you… Read more

SNMP Traps in Windows Server

What is an SNMP Trap? It’s nothing but an alert message with abstract information about an event sent from an SNMP agent to its configured SNMP manager. It notifies the administrators about an event that occurred in the SNMP agent. There is separate service called SNMP Trap service which runs in Microsoft operating systems and… Read more

DNS Round Robin and Destination IP address selection

This post is meant to discuss the issues that can occur with Destination IP address selection and its affect on the DNS Round Robin process. What is Round Robin and Netmask Ordering DNS Round Robin is a mechanism for choosing an IP address from the list returned by a DNS server so that all clients… Read more

Slow File Transfer with Service Pack 2 on Windows Server 2003?

One of the most common calls we get is that file transfers are “slow,” causing us to collect network traces and perfmon logs in order to determine if the transfer is slower than it should be and, if so, what is the cause. I had a case recently where a little-known and rarely-experienced change to… Read more

Network connectivity issues post deployment of MS09-001? Try updating your Anti Virus Signature

One of our customers reported an issue after applying the update per KB958687 (MS09-001), which installs a new version of SRV.SYS. The customer was experiencing the following symptoms: Request Timed Out error when trying ping the problem machine from another machine. Unable to establish a remote desktop connection to the machine on which MS09-001 has… Read more