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Wspsrv.exe causing random high CPU utilization – how to catch it?

I was reading the Windows IT Pro Magazine of this month (September 2009) and there I found a nice article written by an Escalation Engineer here from Microsoft Texas ( Michael Morales ) where he describes how to use ProcDump to catch high CPU utilization. Read More...
Posted Tuesday, September 01, 2009 4:07 PM by yuridio | 0 Comments

Slow performance while browsing Internet using IE8 through ISA Server 2006

Sounds familiar? Interesting though is that in this case it was not an ISA issue (really??? J ) and was actually fixed using the solution below from IE Team: http://blogs.msdn.com/askie/archive/2009/07/17/slow-performance-in-internet-explorer-8-after-installing-the-skype-v4-1-application.aspx Read More...
Posted Friday, August 07, 2009 3:46 PM by yuridio | 0 Comments

ISA Server 2006 Firewall Service not starting

1. Introduction One of the most painful issues to resolve on ISA Server is when the Firewall Service stops and doesn’t come up again. Many times this happens without a previous warning and most of the times is because ISA is failing to load something Read More...
Posted Sunday, August 02, 2009 5:38 PM by yuridio | 0 Comments
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Identifying the Source of the Traffic

Couple of days ago I was assisting a friend to troubleshoot the infamous 5783 that was causing the authentication prompt issue that we all know about. In this case the problem was happening throughout the night, which was even odder because during the Read More...
Posted Friday, July 10, 2009 1:02 AM by yuridio | 0 Comments

A Failed Attempt to Optimize Browsing Performance

1. Introduction Last post I was mentioning how important it is to have a good planning phase for a technology that you are going to implement it. Planning doesn’t mean only sizing the right hardware for your needs, but also how you will configure the Read More...
Posted Saturday, May 16, 2009 2:03 AM by yuridio | 0 Comments

Forefront Security for Exchange Server SP1 Capacity Planning Tool

There is nothing better to avoid headaches then a good planning for the technology that you are about to implement. Many scenarios of poor performance or inappropriate behavior sometimes happen because administrators skip the planning phase and go direct Read More...
Posted Wednesday, May 13, 2009 3:56 PM by yuridio | 0 Comments
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Performance Analyzer

Tired of reading huge BLG files and compare with triggers to see if the system is running as it should? I hear you my friend! It is time to automate that using PAL – Performance Analysis of Logs , a great tool created by a MSFTE that you can download Read More...
Posted Thursday, April 16, 2009 2:57 AM by yuridio | 0 Comments
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Clients can’t browse Internet through ISA because ISA is waiting for the DNS to answer

Just a quick follow up on the article that I wrote for the ISA Team Blog about ISA stopping answering requests . Last week I was collaborating with Networking Team in another case where ISA was stopping answering because of delays in DNS response. They Read More...
Posted Wednesday, January 28, 2009 12:00 AM by yuridio | 0 Comments

ISA Server Firewall Service crashes when enabling cache

1. Introduction This is another one of those cases where ISA Server Service mysterious crashes once a day, at the same time and nothing changed in the environment. This just make me really fell that the lack of communication between the teams that deals Read More...
Posted Monday, January 12, 2009 11:23 PM by yuridio | 0 Comments

What can happen when you think that only Windows system needs to be patched

This post could easily be called “Slow Internet through ISA Server”, but I decided to change the title and the focus. I’m doing that for a simple reason: people still thinking that only Windows system needs to be patched. What an untrue statement this Read More...
Posted Tuesday, December 16, 2008 2:42 AM by yuridio | 1 Comments

Port Exhaustion on ISA Server 2006 while Publishing Outlook Anywhere

Last week we (ISA Server Team in Texas) faced an interesting issue where remote Outlook Clients using RPC over HTTPs were not able to communicate with the internal Exchange Server. Pretty challenge case since on the ISA Server side there was nothing really Read More...
Posted Tuesday, November 18, 2008 12:10 AM by yuridio | 1 Comments

Intermittent Performance Problem while Accessing Internet through ISA Server 2006 – Round 2

1. Introduction Well, I was not planning to have a round two on this subject, but it is just amazing how ISA is blamed by sys admin even before the deep troubleshoot being done. I hear every other week someone saying: my ISA is slow to answer, takes forever Read More...
Posted Tuesday, August 26, 2008 3:20 AM by yuridio | 0 Comments

Antivirus and ISA Server

1. Introduction This post is about a support call where customer was complaining that the ISA Server was stop answering requests every five days in average. Of course this is too broad statement and we have to narrow it down with more and more questions. Read More...
Posted Friday, August 22, 2008 3:43 AM by yuridio | 0 Comments

Intermittent Performance Problem while Accessing Internet through ISA Server 2006

1. Introduction One of the most challenges for the ISA Admin is to determine the culprit for an intermittent issue. This gets worse when the issue is related with performance. While there are many elements that can impact ISA Server’s performance, this Read More...
Posted Wednesday, August 06, 2008 5:58 AM by yuridio | 4 Comments
 
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