How to Attach a Wall Mount to a Yealink T42S Phone
The Yealink T42S SIP phone is can be mounted on a wall with the custom wall mount bracket (sold separately). Here’s how to attach the bracket to the phone:
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Algo 8186 SIP Horn Speaker Demo
I recently had the chance to set up an Algo 8186 SIP Horn Speaker for a client. The speaker can act as a loud ringer for a phone extension and/or …
Failure Compacting the Virtual Hard Disk on the Backup Location
Windows Server 2016 backups are completing with the warning “There was a failure compacting the virtual hard disk on the backup location. Detailed error: A device attached to the system …
BitLocker Failure with Hyper-V after May 2019 Updates
A week ago, on my Server 2016 Hyper-V host, after installing the May 14, 2019 Cumulative Update (KB4494440) and restarting, I got BitLocker error 0xc0210000, “A required file couldn’t be …
Diagnosing High Memory Usage
A Windows 10 desktop is suddenly running high virtual memory until it stops responding altogether. Some commands I’m using to figure out what is chewing up the memory: Tasks filtered …
Certify the Web on Server 2016 with Essentials
I’ve been testing Certify the Web on my Windows Server 2016 computer with the Essentials role. This sets up a Let’s Encrypt certificate for use as the server’s public certificate. …
DevNodeClean: Deleting Unused Devices
Recently a Microsoft support agent used a tool that I wasn’t familiar with: DevNodeClean. Basically Windows creates a device in registry for every new device that is connected—even if it’s …
A Good Phish Is Bad to Find
Today, in my Microsoft-hosted email account, I received an email telling me that my Office 365 account needs validation and has been temporarily suspended. I know that’s baloney because I …
Samsung Magician Causes Error 10 on USB Drives
A customer recently upgraded from a Samsung SSD from a 250GB to a 500GB version to get more space. The upgrade with Samsung Migration software went smoothly and everything was …
UniFi VPN Fails after Edit
Yesterday, on my UniFI USG configuration, I made a small change to a site-to-site IPSec VPN. It broke—I could no longer connect to the remote site. I reverted the change. …