Windows 7: Network Card disconnect on high usage

My computer was keep disconnecting from network, I think it happens when I am doing high network usage. After I remove the network cable and reconnect, it works for while. System Event log has few of these, Log Name: System Source: Microsoft-Windows-DNS-Client Date: 4/19/2011 6:23:00 PM Event ID: 1014 Task Category: None Level: Warning Keywords: … Continue reading Windows 7: Network Card disconnect on high usage →

Active Directory: Copy a Group Members to a new Group

How would you copy the members (including users and groups) of GROUP-A to another group (GROUP-B)? I figured that out today. Open Active Directory Module for Windows PowerShell in Administrative Tools and type the following command. Get-ADGroupMember -Identity GROUP-A | Add-ADPrincipalGroupMembership -MemberOf GROUP-B Get-ADGroupMember gets all the members of GROUP-A and pipes into Add-ADPrincipalGroupMembership cmdlet … Continue reading Active Directory: Copy a Group Members to a new Group →

How do you Query Certificate Authority?

I learned how to query Certificate Authority to get list of generated certificates. I need to grab all generated machine certificates (Cert Template: Computer/Machine) to figure out which machine got the certificate. The following command list all machine certificates generated to all domain machines. certutil -view -config "<FQDN of Certificate Authority Server>\<Certificate Authority Name>" -restrict … Continue reading How do you Query Certificate Authority? →

Bounced Meeting Request with “550 5.1.1 RESOLVER.ADR.ExRecipNotFound; not found”

Is invisible delegate driving you nuts? Users will get a bounced message from Exchange Server for a mysterious delegate, like one below. Subject: Undeliverable: <Subject Text> Delivery has failed to these recipients or groups: Jane Doe The e-mail address you entered couldn't be found. Check the address and try resending the message. If … Continue reading Bounced Meeting Request with “550 5.1.1 RESOLVER.ADR.ExRecipNotFound; not found” →

0X80040113 – Microsoft Exchange offline address book

When I enabled web based OAB distribution, Clients aren’t downloading the Offline Address Book at all. In fact Outlook OAB sync was hanging in half way for long time. In Outlook, Sync Issues folder has this error message logged. 9:07:52 Error synchronizing folder 9:07:52 [80040115-514-469-0] 9:07:52 Network problems are preventing connection to Microsoft Exchange. 9:07:52 … Continue reading 0X80040113 – Microsoft Exchange offline address book →

SCOM: “Critical hotfixes required for reliable operation of the Exchange Server 2010”–alerts on wrong servers

Whenever I install SCOM agent on new server, I get this alert. Alert description: Critical hotfixes required for reliable operation of the Exchange Server 2010 and other management packs are not installed on this server. Please see the appropriate KB article for more information, and to download the required hotfix Why would SCOM barking on … Continue reading SCOM: “Critical hotfixes required for reliable operation of the Exchange Server 2010”–alerts on wrong servers →