FRITZ!Box 7490 – Service - Knowledge Base

FRITZ!Box 7490 – Service

FRITZ!Box USB remote connection reports "Debug Assertion Failed"

When installing the FRITZ!Box Remote Connection software, the error message "Microsoft Visual C++ Debug Library: Debug Assertion Failed!" is displayed. Installation cannot be completed.

1 Changing the computer name in the operating system

According to the Microsoft definition, computer names may only contain letters (A-Z, a-z), numbers (0-9) and hyphens (-). Therefore, rename your computer and do not use any special characters in the name:

Windows 10

  1. Click "Start" and then "Settings" in the Windows task bar.
  2. Click "System" in the "Settings" menu.
  3. Click "About" in the "System" menu and then "Rename PC".
    • The "Rename your PC" window opens.
  4. Enter a new computer name in the "Rename your PC" window and click "Next".

Windows 8

  1. Press the keyboard shortcut Windows key + X and select "System" from the context menu.
  2. In the "Computer name, domain, and workgroup settings" section, click the "Change settings" button.
    • The "System Properties" window opens.
  3. On the "Computer Name" tab, click the "Change..." button.
    • The "Computer Name/Domain Changes" window opens.
  4. Enter a new computer name in the "Computer name:" field.

Windows 7

  1. Open the Windows start menu.
  2. Right-click the entry "Computer" and select "Properties" from the context menu.
  3. In the "Computer name, domain, and workgroup settings" section, click the "Change settings" button.
    • The "System Properties" window opens.
  4. On the "Computer Name" tab, click the "Change..." button.
    • The "Computer Name/Domain Changes" window opens.
  5. Enter a new computer name in the "Computer name:" field.