This article provides instructions on how to download the latest driver of your D-Link USB Modem Diagnostic (COM21) driver adapter.
NOTE: Make sure your computer has an active Internet connection. If your computer is plugged into the router and cannot get online, disconnect it from your router and plug it directly into your Cable or DSL modem.
As there are many drivers having the same name, we suggest you to try the Driver Tool, otherwise you can try one by on the list of available driver below.
Please scroll down to find a latest utilities and drivers for your D-Link USB Modem Diagnostic (COM21) driver.
Be attentive to download software for your operating system.
Description: D-Link USB Modem Diagnostic (COM21) driver setup Version: 4.2.8 Date: 09 Sep 2014 Filesize: 0.81 MB Operating system: Windows XP, Visa, Windows 7,8 (32 & 64 bits)