Microsoft Archives - Page 17 of 61

Attempting to request a certificate for Skype for Business Server 2015 from an internal Microsoft Enterprise CA throws the error: “A required certificate is not within its validity period when verifying against the current system clock or the timestamp in the signed file. 0x800b0101 (-2146762495 CERT_E_EXPIRED)”

September 13, 2018

Problem You’re attempting to renew the Skype for Business Server 2015 front-end server with an internal Microsoft Enterprise Certificate Authority but receive the following error: > Request CertificateRequest-CSCertificate -New -Type Default,WebServicesInternal -CA “DC1.corp.contoso.bmContoso CA” -Country

Skype for Business front-end server logs the event ID error 32054: “Storage Service had an EWS Autodiscovery failure.”

July 13, 2018

Problem You’ve received complaints from users that they are experiencing out of sync messages between devices such as their mobile phones compared to the Skype for Business clients. Logging onto the Skype for Business front-end

Unable to assign a newly requested certificate to a Skype for Business Edge server

July 12, 2018

Problem You’ve just used the Skype for Business Server 2015 – Deployment Wizard to request a certificate for the internal interface of the Lync Edge server: The process completes with warnings: Viewing the logs displays

Minimizing and restoring Windows Server 2016 RDS RemoteApp causes a frozen black screen to be displayed

July 10, 2018

Update: July 11, 2018 The support engineer gave me a call back yesterday and said this is apparently a known issue at Microsoft and a patch is supposed to be released at some point. He

Creating an Exchange / Outlook warning banner for external recipients

July 8, 2018

Many of the clients I work with have been taken an interest in implementing warning banners for all emails received from outside of their organizations in an effort to combat the ever increasing phishing emails

Creating a new Windows Server 2016 RDS Collection fails with: “.FQDN Unable to configure the RD Session Host server .FQDN. Invalid operation”

July 5, 2018

Problem You need to add an additional RD Session Host Server to an existing RDS deployment then create a new RDS Collection with the server so you proceed to add the server: Once you’ve successfully

Attempting to install Skype for Business server role onto Windows 2012 server fails with: “Prerequisite not satisfied: Before you install Skype for Business Server 2015, you must install an update for Windows Server 2012 R2. For details about the update”

June 30, 2018

Problem You’re attempting to install a new role, such as mediation services, on an existing front end server but the process fails with the following message: > Bootstrap-CsComputerLogging status to: C:Usersa-tlukAppDataLocalTemp2BootstrapFull-[2018_06_23][13_45_16].htmlChecking prerequisites for bootstrapper…Checking prerequisite

Running sysprep on Windows Server 2012 R2 server fails with: “A fatal error occurred while trying to sysprep the machine.”

June 26, 2018

Problem You have an existing Windows Server 2012 R2 server that you would like to manually sysprep: So you proceed to navigate to the directory: C:windowssystem32sysprep to execute the sysprep.exe: Select the Generalize option and

Azure AD synchronization fails with: “user_realm_discovery_failed: User realm discovery failed” and “The remote server returned an error: (407) Proxy Authentication Required.”

June 19, 2018

Problem You’ve noticed that your Azure AD synchronization has stopped synchronizing for a period of time: Launching the Synchronization Service Manager indicates the export job is failing with stopped-extension-dll-exception: Reviewing the event logs show the

Deploying SecurEnvoy 2FA with Exchange Server 2016 OWA

June 1, 2018

I recently had to deploy SecurEnvoy 2FA with Exchange Server 2016’s OWA and noticed that there wasn’t official documentation for the configuration so I thought I’d write this blog post to outline the steps I

Microsoft

Skype for Business front-end server logs the event ID error 32054: “Storage Service had an EWS Autodiscovery failure.”

Unable to assign a newly requested certificate to a Skype for Business Edge server

Minimizing and restoring Windows Server 2016 RDS RemoteApp causes a frozen black screen to be displayed

Creating an Exchange / Outlook warning banner for external recipients

Creating a new Windows Server 2016 RDS Collection fails with: “.FQDN Unable to configure the RD Session Host server .FQDN. Invalid operation”

Attempting to install Skype for Business server role onto Windows 2012 server fails with: “Prerequisite not satisfied: Before you install Skype for Business Server 2015, you must install an update for Windows Server 2012 R2. For details about the update”

Running sysprep on Windows Server 2012 R2 server fails with: “A fatal error occurred while trying to sysprep the machine.”

Azure AD synchronization fails with: “user_realm_discovery_failed: User realm discovery failed” and “The remote server returned an error: (407) Proxy Authentication Required.”

Deploying SecurEnvoy 2FA with Exchange Server 2016 OWA

Hello! My name is Terence Luk and welcome to my blog.

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