Windows Administration

• 🛠️ Running the Native TPM Pre-Attestation Task & Checking Measured Boot

  🛠️ Running the Native TPM Pre-Attestation Task & Checking Measured Boot Here is the complete manual guide to running the built-in health check and verifying your system's Measured Boot logs, script-free. 📋 Step 1: Find and Trigger the Built-In Task Windows already maintains this task natively. You just need to locate and wake it up. Press Win + R, type taskschd.msc, and hit Enter to open Task Scheduler. In the left sidebar, navigate through the foldersFew readers

• FACEIT Anti-Cheat: Fix the Restart Loop by Disabling the Wi-Fi Adapter

  FACEIT Anti-Cheat: Fix the Restart Loop by Disabling the Wi-Fi Adapter FACEIT Anti-Cheat can get stuck repeatedly asking you to restart to "complete the installation." On affected machines, disabling the onboard Wi-Fi adapter stops the loop and lets the Anti-Cheat launch normally. Symptoms When you launch FACEIT Anti-CheaFew readers

ggRock Administration

• Active Directory Support

  Enabling Active Directory Support in ggRock This guide outlines the steps to enable Active Directory (AD) Support for your system images within the ggRock Web UI. Once configured, any machine booting from the modified image will automatically attempt to bind to your AD domain. ⚠️ Critical Requirement: NetBIOS Naming Conventions Before enabling Active Directory, ensure your Machine Names in ggRock adhere to Microsoft NetBIOS standards. Failure to follow these rules will prevent machFew readers

ggRock Troubleshooting

• Keep Writebacks doesn't get Enabled

  **Problem:** Keep writeback fails to get enabled even after enabling it multiple times. ![](https://storage.crisp.chat/users/helpdesk/website/-/a/f/d/6/afd6941e8bc7d800/image-26_1yFew readers

• ggRock Machines missing from Machines tab after Linux Kernel Update - HTTP 5xx Server Error No More network devices

  This article details linux administration tasks necessary if a Linux kernel update results in an inability for ggRock to function. ### **Problem** ggRock Machines are missing from Few readers

• When using a RAID 5 Array, space is not displayed appropriately in the ggRock Web UI Array Tab

  ### **Problem** The ggRock Array is configured as RAID 5. After RAID parity, the Array usage/free space is misrepresented which may result in running out of space on the array premFew readers

• Internal Server Error: No records found. The Machines and Array tabs are empty.

  ## This article summarizes and provides a solution for a situation which can result in internal server errors and blank displays for Machines, Array, and Images ### Problem "InternFew readers

• Getting Device Ready Boot Loop After Image Creation

  ### Problem After creation of a new image using the ggRock Image Creation Tool (In this case, Windows 10 Education Edition Build 21H1), the system's boot loop (In this case, AlienwFew readers

• Booting Many ggRock Machines at Once Results in a large portion of the PCs not loading data on boot (files missing on System and Games drive

  Problem Restarting numerous PCs, all load normally, however some are missing data (missing files from Games or System image drives in Windows). Solution    Access the Grafana logging facility NOTE: Refer to the Stats Article for information on how to access the Grafana* logging facility to monitor performance of your ggRock Server.    If you have enabled VMs on your ggRock server, set the network log toFew readers

• Troubleshooting ggRock Client Agent Not Starting at Boot

  🛠️ Troubleshooting: ggRock Client Agent Not Starting at Boot In some cases, especially during trial installations or new deployments, a client machine may fail to appear under the Hardware tab in the ggRock UI. This is often caused by the ggRock Client Agent not launching at system boot due to a missing registry entry under HKEYCURRENTUSER. This article walks you through how to identify and resolve this issue quickly. ❓ Symptoms Machines do not appear in the ggRock HardwarFew readers

• Grafana shows N/A and Prometheus won't stay running (duplicate command-line flag)

  Grafana shows N/A and Prometheus won't stay running (duplicate command-line flag) When Prometheus exits on startup with a "flag cannot be repeated" error, Grafana panels show N/A or no data. This is usually caused by the same flag being set in two places. This article shows how to confirm it and fix it so it survives future updates. Symptoms Grafana panels show N/A or display no statistics. The Prometheus service won't stay running; systemctl status prometheus shows it failedFew readers

• Diskless PCs Fail to PXE Boot After a Meraki/Cisco Switch Firmware Upgrade (STP Edge-Port / PortFast Fix)

  Diskless PCs Fail to PXE Boot After a Meraki/Cisco Switch Firmware Upgrade (STP Edge-Port / PortFast Fix) Diskless client PCs stop PXE booting fleet-wide because the switch's access ports no longer forward traffic immediately on link-up. The fix is to mark those ports as edge ports (PortFast / BPDU Guard).Few readers

• ggRock client fails to connect to the server (SignalR negotiate returns 405)

  ggRock client fails to connect to the server (SignalR negotiate returns 405) A redirect in the ggRock server's Nginx config can stop the ggRock client from communicating with the server, which appears as the client failing to start and looping. This article explains why it happens, how to confirm it, and how to fix it. Symptoms The ggRock client fails to start and immediately shuts down, looping on every boot. The client cannot communicate with the ggRock server, so any function thFew readers

ggRock Settings

• ggRock Settings Graphical Overview

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Getting Started with ggRock

• Update Windows System Image using ggRock Image Creation Tool (Deprecated)

  This article details the process updating Windows System Image for ggRock, including Windows 2004 and Windows 20H2+ (2020+) To update ggRock from the currently recommended 1809 to Few readers

Debian Server OS Administration

• Linux Kernel Local Privilege Escalation — Fragnesia, Dirty Frag, Copy-Fail, ssh-keysign-pwn, nf_tables Typo, CIFSwitch, DirtyClone

  Linux Kernel Local Privilege Escalation — Fragnesia, Dirty Frag, Copy-Fail, ssh-keysign-pwn, nftables Typo, CIFSwitch, DirtyClone Severity: Critical Last Updated: 2026-06-27 CVEs: CVE-2026-46300, CVE-2026-43284, CVE-2026-31431, CVE-2026-46333, CVE-2026-23111, CVE-2026-46243, CVE-2026-43503Few readers

Debian Server OS Troubleshooting

• Resolving System Instability and iSCSI Timeouts on Intel E800 Series (ICE) Adapters

  Resolving System Instability and iSCSI Timeouts on Intel E800 Series (ICE) Adapters Symptoms Systems utilizing Intel E810 or other 800-series network adapters (governed by the ice driver) may experience the following issues, particularly in diskless or iSCSI-booted environments: Complete System Hangs: The server becomes unresponsive during high I/O events, such as Virtual Machine (VM) boots or large file transfers. iSCSI Connection Drops: Kernel logs show Did not receiveFew readers

• ggRock Server Offline - Disk Full

  GGRock Server Offline — Disk Full (Log Files) Applies to: GGRock servers running on Debian Linux Signs / Symptoms Unable to access the GGRock Web UI or Debian control panel — locally or via port 443 / 9090 Login attempts return: "The server didn't respond in time. Please try again later." Root Cause The /var/log partition has filled up with oversized logFew readers

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