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<!DOCTYPE FL_Course SYSTEM "https://www.flane.de/dtd/fl_course095.dtd"><?xml-stylesheet type="text/xsl" href="https://portal.flane.ch/css/xml-course.xsl"?><course productid="36661" language="en" source="https://portal.flane.ch/swisscom/en/xml-course/omnissa-ht" lastchanged="2026-03-26T16:36:02+01:00" parent="https://portal.flane.ch/swisscom/en/xml-courses"><title>Horizon Troubleshooting</title><productcode>HT</productcode><vendorcode>OM</vendorcode><vendorname>OMNISSA</vendorname><fullproductcode>OM-HT</fullproductcode><version>8.0</version><objective>&lt;ul&gt;
&lt;li&gt;Develop a structured approach to troubleshooting.&lt;/li&gt;&lt;li&gt;Resolve common issues that occur in a Horizon environment.&lt;/li&gt;&lt;li&gt;Discuss Horizon Connection Server advanced configurations.&lt;/li&gt;&lt;li&gt;Interpret Horizon Connection Server logs.&lt;/li&gt;&lt;li&gt;Identify Unified Access Gateway configuration and certificate problems.&lt;/li&gt;&lt;li&gt;Describe BLAST configuration verification using logs and settings.&lt;/li&gt;&lt;li&gt;Describe how Horizon connections work and how to troubleshoot issues.&lt;/li&gt;&lt;li&gt;Describe the use of TLS/ SSL certificates in Horizon and list troubleshooting steps for common problems.&lt;/li&gt;&lt;li&gt;Describe Cloud Pod Architecture troubleshooting scenarios.&lt;/li&gt;&lt;li&gt;Learn about the command line tools available.&lt;/li&gt;&lt;li&gt;Learn the importance of optimizing Windows for use in Horizon and learn what should be optimized to improve system performance and reliability.&lt;/li&gt;&lt;li&gt;Discuss how to troubleshoot problems related to instant clone VMs.&lt;/li&gt;&lt;li&gt;Identify steps that you can follow to solve problems related to Horizon Client.&lt;/li&gt;&lt;li&gt;Discuss troubleshooting steps applicable to device redirection in HorizonTroubleshoot redirection common problems.&lt;/li&gt;&lt;/ul&gt;</objective><essentials>&lt;p&gt;Recommended:&lt;/p&gt;
&lt;ul&gt;
&lt;li&gt;A working knowledge of Omnissa Horizon infrastructure&lt;/li&gt;&lt;li&gt;A background in End-User Computing&lt;/li&gt;&lt;li&gt;Completed &lt;span class=&quot;cms-link-marked&quot;&gt;&lt;a class=&quot;fl-href-prod&quot; href=&quot;/swisscom/en/course/omnissa-hdm&quot;&gt;&lt;svg role=&quot;img&quot; aria-hidden=&quot;true&quot; focusable=&quot;false&quot; data-nosnippet class=&quot;cms-linkmark&quot;&gt;&lt;use xlink:href=&quot;/css/img/icnset-linkmarks.svg#linkmark&quot;&gt;&lt;/use&gt;&lt;/svg&gt;Horizon Deploy and Manage &lt;span class=&quot;fl-prod-pcode&quot;&gt;(HDM)&lt;/span&gt;&lt;/a&gt;&lt;/span&gt; course&lt;/li&gt;&lt;/ul&gt;</essentials><audience>&lt;p&gt;Intermediate to advanced practitioners that support Horizon 8 environments.&lt;/p&gt;</audience><contents>&lt;ul&gt;
&lt;li&gt;Course introduction&lt;/li&gt;&lt;li&gt;Review of Omnissa Horizon&lt;/li&gt;&lt;li&gt;Introduction to troubleshooting&lt;/li&gt;&lt;li&gt;Horizon infrastructure troubleshooting&lt;/li&gt;&lt;li&gt;Unified Access Gateway troubleshooting&lt;/li&gt;&lt;li&gt;Blast configuration verification&lt;/li&gt;&lt;li&gt;Blast optimization&lt;/li&gt;&lt;li&gt;Horizon connections troubleshooting&lt;/li&gt;&lt;li&gt;TLS certificate troubleshooting&lt;/li&gt;&lt;li&gt;Cloud Pod architecture troubleshooting&lt;/li&gt;&lt;li&gt;Command line tools&lt;/li&gt;&lt;li&gt;Troubleshooting machines and desktops&lt;/li&gt;&lt;li&gt;Optimizing Windows desktops and servers&lt;/li&gt;&lt;li&gt;Troubleshooting instant clones&lt;/li&gt;&lt;li&gt;Troubleshooting Horizon Client&lt;/li&gt;&lt;li&gt;Troubleshooting device redirection&lt;/li&gt;&lt;/ul&gt;</contents><outline>&lt;h5&gt;1 Course introduction&lt;/h5&gt;&lt;ul&gt;
&lt;li&gt;Introductions and course logistics&lt;/li&gt;&lt;li&gt;Course objectives&lt;/li&gt;&lt;/ul&gt;&lt;h5&gt;2 Review of Omnissa Horizon&lt;/h5&gt;&lt;ul&gt;
&lt;li&gt;Review Horizon 8 architecture&lt;/li&gt;&lt;/ul&gt;&lt;h5&gt;3 Introduction to troubleshooting&lt;/h5&gt;&lt;ul&gt;
&lt;li&gt;How to troubleshoot&lt;/li&gt;&lt;li&gt;Troubleshooting resources&lt;/li&gt;&lt;/ul&gt;&lt;h5&gt;4 Horizon infrastructure troubleshooting&lt;/h5&gt;&lt;ul&gt;
&lt;li&gt;Horizon Connection Server general troubleshooting&lt;/li&gt;&lt;li&gt;Active Directory Lightweight Directory Service replication&lt;/li&gt;&lt;li&gt;Working with Horizon Connection Server logs&lt;/li&gt;&lt;/ul&gt;&lt;h5&gt;5 Unified Access Gateway troubleshooting&lt;/h5&gt;&lt;ul&gt;
&lt;li&gt;Unified Access Gateway deployment errors&lt;/li&gt;&lt;li&gt;Monitor the Unified Access Gateway&lt;/li&gt;&lt;li&gt;Troubleshoot a Unified Access Gateway Certificate&lt;/li&gt;&lt;li&gt;Tools for troubleshooting connections on the Unified Access Gateway&lt;/li&gt;&lt;li&gt;Troubleshooting the Unified Access Gateway&lt;/li&gt;&lt;/ul&gt;&lt;h5&gt;6 Blast configuration verification&lt;/h5&gt;&lt;ul&gt;
&lt;li&gt;How to verify the current Blast configuration&lt;/li&gt;&lt;/ul&gt;&lt;h5&gt;7 Blast optimization&lt;/h5&gt;&lt;ul&gt;
&lt;li&gt;Blast optimization overview&lt;/li&gt;&lt;li&gt;Optimizing Blast for Wide Area Networks&lt;/li&gt;&lt;li&gt;Work from home and home office to cloud&lt;/li&gt;&lt;li&gt;Optimizing for quality&lt;/li&gt;&lt;/ul&gt;&lt;h5&gt;8 Horizon connections troubleshooting&lt;/h5&gt;&lt;ul&gt;
&lt;li&gt;Understanding Horizon connections&lt;/li&gt;&lt;li&gt;Horizon connections load balancing&lt;/li&gt;&lt;li&gt;Troubleshooting Horizon connections&lt;/li&gt;&lt;li&gt;Key ports and protocols&lt;/li&gt;&lt;li&gt;Black screen&lt;/li&gt;&lt;/ul&gt;&lt;h5&gt;9 TLS certificate troubleshooting&lt;/h5&gt;&lt;ul&gt;
&lt;li&gt;Horizon 8 TLS certificates&lt;/li&gt;&lt;li&gt;Troubleshooting TLS certificates in Horizon 8&lt;/li&gt;&lt;/ul&gt;&lt;h5&gt;10 Cloud Pod architecture troubleshooting&lt;/h5&gt;&lt;ul&gt;
&lt;li&gt;Cloud Pod architecture troubleshooting&lt;/li&gt;&lt;/ul&gt;&lt;h5&gt;11 Command line tools&lt;/h5&gt;&lt;ul&gt;
&lt;li&gt;About the command line tools and how to use them&lt;/li&gt;&lt;li&gt;Backing up and restoring Horizon 8 databases&lt;/li&gt;&lt;/ul&gt;&lt;h5&gt;12 Troubleshooting machines and desktops&lt;/h5&gt;&lt;ul&gt;
&lt;li&gt;Help Desk tool deep dive&lt;/li&gt;&lt;li&gt;Troubleshooting machines and desktops&lt;/li&gt;&lt;li&gt;Troubleshooting Linux desktops&lt;/li&gt;&lt;/ul&gt;&lt;h5&gt;13 Optimizing Windows desktops and servers&lt;/h5&gt;&lt;ul&gt;
&lt;li&gt;Why optimize a Windows image?&lt;/li&gt;&lt;li&gt;Windows OS optimization tool for Horizon&lt;/li&gt;&lt;li&gt;Using automation to build optimized Windows images&lt;/li&gt;&lt;/ul&gt;&lt;h5&gt;14 Troubleshooting instant clones&lt;/h5&gt;&lt;ul&gt;
&lt;li&gt;Troubleshooting instant clones&lt;/li&gt;&lt;/ul&gt;&lt;h5&gt;15 Troubleshooting Horizon Client&lt;/h5&gt;&lt;ul&gt;
&lt;li&gt;Horizon Client for Windows&lt;/li&gt;&lt;li&gt;Horizon Client for Linux&lt;/li&gt;&lt;li&gt;Horizon Client for Mac&lt;/li&gt;&lt;li&gt;Horizon Web Client (HTML Access)&lt;/li&gt;&lt;/ul&gt;&lt;h5&gt;16 Troubleshooting device redirection&lt;/h5&gt;&lt;ul&gt;
&lt;li&gt;Device redirection&lt;/li&gt;&lt;li&gt;Nested RDSH redirection&lt;/li&gt;&lt;/ul&gt;</outline><objective_plain>- Develop a structured approach to troubleshooting.
- Resolve common issues that occur in a Horizon environment.
- Discuss Horizon Connection Server advanced configurations.
- Interpret Horizon Connection Server logs.
- Identify Unified Access Gateway configuration and certificate problems.
- Describe BLAST configuration verification using logs and settings.
- Describe how Horizon connections work and how to troubleshoot issues.
- Describe the use of TLS/ SSL certificates in Horizon and list troubleshooting steps for common problems.
- Describe Cloud Pod Architecture troubleshooting scenarios.
- Learn about the command line tools available.
- Learn the importance of optimizing Windows for use in Horizon and learn what should be optimized to improve system performance and reliability.
- Discuss how to troubleshoot problems related to instant clone VMs.
- Identify steps that you can follow to solve problems related to Horizon Client.
- Discuss troubleshooting steps applicable to device redirection in HorizonTroubleshoot redirection common problems.</objective_plain><essentials_plain>Recommended:


- A working knowledge of Omnissa Horizon infrastructure
- A background in End-User Computing
- Completed Horizon Deploy and Manage (HDM) course</essentials_plain><audience_plain>Intermediate to advanced practitioners that support Horizon 8 environments.</audience_plain><contents_plain>- Course introduction
- Review of Omnissa Horizon
- Introduction to troubleshooting
- Horizon infrastructure troubleshooting
- Unified Access Gateway troubleshooting
- Blast configuration verification
- Blast optimization
- Horizon connections troubleshooting
- TLS certificate troubleshooting
- Cloud Pod architecture troubleshooting
- Command line tools
- Troubleshooting machines and desktops
- Optimizing Windows desktops and servers
- Troubleshooting instant clones
- Troubleshooting Horizon Client
- Troubleshooting device redirection</contents_plain><outline_plain>1 Course introduction


- Introductions and course logistics
- Course objectives
2 Review of Omnissa Horizon


- Review Horizon 8 architecture
3 Introduction to troubleshooting


- How to troubleshoot
- Troubleshooting resources
4 Horizon infrastructure troubleshooting


- Horizon Connection Server general troubleshooting
- Active Directory Lightweight Directory Service replication
- Working with Horizon Connection Server logs
5 Unified Access Gateway troubleshooting


- Unified Access Gateway deployment errors
- Monitor the Unified Access Gateway
- Troubleshoot a Unified Access Gateway Certificate
- Tools for troubleshooting connections on the Unified Access Gateway
- Troubleshooting the Unified Access Gateway
6 Blast configuration verification


- How to verify the current Blast configuration
7 Blast optimization


- Blast optimization overview
- Optimizing Blast for Wide Area Networks
- Work from home and home office to cloud
- Optimizing for quality
8 Horizon connections troubleshooting


- Understanding Horizon connections
- Horizon connections load balancing
- Troubleshooting Horizon connections
- Key ports and protocols
- Black screen
9 TLS certificate troubleshooting


- Horizon 8 TLS certificates
- Troubleshooting TLS certificates in Horizon 8
10 Cloud Pod architecture troubleshooting


- Cloud Pod architecture troubleshooting
11 Command line tools


- About the command line tools and how to use them
- Backing up and restoring Horizon 8 databases
12 Troubleshooting machines and desktops


- Help Desk tool deep dive
- Troubleshooting machines and desktops
- Troubleshooting Linux desktops
13 Optimizing Windows desktops and servers


- Why optimize a Windows image?
- Windows OS optimization tool for Horizon
- Using automation to build optimized Windows images
14 Troubleshooting instant clones


- Troubleshooting instant clones
15 Troubleshooting Horizon Client


- Horizon Client for Windows
- Horizon Client for Linux
- Horizon Client for Mac
- Horizon Web Client (HTML Access)
16 Troubleshooting device redirection


- Device redirection
- Nested RDSH redirection</outline_plain><duration unit="d" days="3">3 days</duration><pricelist><price country="DE" currency="EUR">3300.00</price><price country="GB" currency="GBP">3250.00</price><price country="SI" currency="EUR">3300.00</price><price country="CH" currency="CHF">3300.00</price><price country="AT" currency="EUR">3300.00</price><price country="SE" currency="EUR">3300.00</price></pricelist><miles/></course>