keithab
Transport Layer Security (TLS) Handshake Failing, SChannel Error 36888
Hey guys, Keith Abluton here again. I wanted to share an interesting trend that I have seen lately...
Date: 11/11/2016
How to Configure Data Captures for Intermittent/Sporadic SChannel Events
Recently I have seen a large uptick in the number of SSL/TLS cases where Schannel Event IDs are...
Date: 10/30/2016
Public Trusted Root Gives Error “The integrity of this certificate cannot be guaranteed”
I recently worked an odd case where customer was seeing the below error on some of his certificates...
Date: 08/03/2016
Schannel Errors Event ID 36888 after installing KB3042058
Howdy folks. Keith here with my first blog in quite a while. I am no longer supporting ISA/TMG/UAG...
Date: 08/02/2016
iOS Devices Using ActiveSync Are Doing an Unexpected Full Sync or Reload of Exchange Data (Part 2)
I recently had another very interesting case that I thought I would share. This is a follow up post...
Date: 09/04/2015
Error While Configuring WAP–”The Underlying Connection Was Closed”–Part 2
Last week I ran into an issue that was similar in behavior to something that I covered in another...
Date: 06/22/2015
Publishing SharePoint 2010 with UAG – Cannot Check Out Documents and They May Be Read-Only
Some of the more frustrating issues I come across when supporting UAG are encountered when...
Date: 04/22/2015
Error While Configuring WAP–The Underlying Connection Was Closed
We have seen a couple of these issues this week when running the Web Application Proxy wizard to...
Date: 04/13/2015
When Troubleshooting Use All the Tools at Your Disposal (Part 2)
Just this week I had another very interesting case that allowed me to really dig into some data and...
Date: 03/29/2015
Building a Web Application Proxy Test Lab in Azure
This is Part 3 in an ongoing series that will help you take advantage of Azure by showing you how...
Date: 03/11/2015
Creating a Test Lab for Free in Azure
Almost anywhere you go these days IT folks are talking about "the cloud." It can be kind...
Date: 02/18/2015
Outlook for Mac 2011 Not Working Through Web Application Proxy
Scenario: You are publishing your Microsoft Exchange services (OWA, ActiveSync, Outlook Anywhere)...
Date: 07/24/2014
iOS Devices Using ActiveSync Are Doing an Unexpected Full Sync or Reload of Exchange Data
Symptom: Your Exchange data may unexpectedly reload on some or all of the iOS devices in your...
Date: 05/07/2014
HTTP 500 Error When Downloading Files Larger Than 10MB Through UAG 2010
Another support issue I have seen that is becoming fairly common occurs when a website is published...
Date: 04/08/2014
Some Fonts Don’t Render on SharePoint 2013 Site Published Through UAG 2010
I just worked an interesting case that may affect people publishing SharePoint 2013 through UAG...
Date: 04/03/2014
Error 414 "Request-URI Too Large" for Outbound Proxy Clients Through Forefront TMG 2010
I recently worked on an interesting support case that I thought I would share. The customer was...
Date: 03/26/2014
Adding a Second Network Adapter for Server Publishing in ISA/TMG
In the last few weeks we have seen a number of cases where TMG was being used in a Single Network...
Date: 08/02/2013
Troubleshooting Errors in the TMG Management Console
Troubleshooting errors found in the user interface of the TMG Management console can be confusing...
Date: 05/14/2013
Clients Are Not Prompted to Choose a Certificate When Authenticating to ISA/TMG
Recently I have been seeing an increasing number of cases with the same symptom especially in the...
Date: 03/06/2013
Setting up TMG 2010 Where EMS is a Domain Member and Array Servers are in a Workgroup
Introduction I have seen a number of cases where customers were installing TMG 2010 in a...
Date: 10/31/2012
Using the Account Lockout Feature in TMG 2010
Introduction A much needed feature was added in Service Pack 2 for Forefront TMG 2010. This great...
Date: 10/29/2012
ISA 2006 Service Pack, Hotfix, and Version Number Reference
Below you will find the Internet Services and Acceleration Server 2006 version number and a link to...
Date: 08/07/2012
Identifying Failed Logon Attempts That Are Causing Account Lockouts in Threat Management Gateway 2010
In one of my previous posts entitled “ISA Server or Forefront TMG is Locking my Accounts...
Date: 05/01/2012
Setting Up and Troubleshooting LDAPS Authentication in Forefront TMG 2010
Lightweight Directory Access Protocol over SSL (LDAPS) is used in Forefront Threat Management...
Date: 02/29/2012
Top Troubleshooting Tips to Try Before Calling Support for ISA/TMG
Today I wanted to give you a list of common things to try when troubleshooting an issue on Internet...
Date: 02/15/2012
ISA Server or Forefront TMG is Locking my Accounts Out
I hear this statement pretty frequently from some of my customers and it is just not accurate. The...
Date: 02/03/2012
Web Publishing Quits Working or Not Working as Expected on ISA/TMG Server
I cannot even begin to tell you how many calls are generated by an all too common mistake that I...
Date: 12/01/2011
Forefront TMG 2010 Service Pack, Rollup, and Version Number Reference
Below you will find the Forefront Threat Management Gateway 2010 version numbers and their...
Date: 09/27/2011
When Troubleshooting Use All the Tools at Your Disposal
One of the really nice things about supporting ISA/TMG is that there are so many tools to assist us...
Date: 08/26/2011
Setting up an OWA Redirect in Forefront TMG 2010 - the Easy Way
One of the most common requests we see is for assistance setting up a redirect in either ISA 2006 or...
Date: 06/13/2011
ISA or TMG May See Certain URLs for a Published Webserver as a Cross Site Scripting (XSS) Attack
I wanted to call attention to a trend I have seen lately in some of the cases I have worked. Symptom...
Date: 04/14/2011
Certificates Issued to Windows 2008 Machines Can Cause Problems in ISA 2006
I recently ran into an interesting issue when I needed to renew the certificates in my lab on my ISA...
Date: 03/23/2011