20 Most Recent U.S. Robotics MAXg USR5421 802.11g/b Wireless Adapter Questions & Answers


Just a thought.. if the configuration utility is installed, you might open the program's Properties and have it run in compatibility mode for Windows XP or Vista.

U.S. Robotics... | Answered on Jan 26, 2019


Use the XP or VISTA one and just ignore the message about it not being win 7 certified

U.S. Robotics... | Answered on Dec 22, 2013


The driver download is available from the USRobotics support page for this device and it accessed by CLICKING HERE. It will work with all versions of windows, MacOS and Linux operating systems. Make sure to download the correct driver.

U.S. Robotics... | Answered on Oct 11, 2013


it maybe a firewall blocking access or the secruity code 1) disable the firewall and see if it now connects 2) log into the router and goto the wireless section and remove the secruity now see if that will connect
a useful tool to use if you can copy onto the PC http://www.xirrus.com/library/wifitools.php this will detect all the networks broadcasting - so you can now see if the adapter will detect your wireless network

U.S. Robotics... | Answered on Mar 25, 2010


I would go into the device manager and remove the device from there - if its shown. Press the Windows key (bottom left of the keyboard} and at the same time press the R key, now in the search box that appears - type devmgmt.msc and see if you have a wireless adapter showing at all. any ? X or ! look under network adapters - click on the + and see if you have the adapter listed - check if it has any X or ! or ?
you can download the driver from this website http://www.usr.com/support/product-template.asp?prod=5421 and reinstall the driver that way
If you want to go back to before you installed the device - try a system restore start>programs>accessories>system tools>system recovery - choose a date to before the problem , that should clear the program and the registry



U.S. Robotics... | Answered on Mar 25, 2010


I would go into the device manager and remove the device from there - if its shown. Press the Windows key (bottom left of the keyboard} and at the same time press the R key, now in the search box that appears - type devmgmt.msc and see if you have a wireless adapter showing at all. If you have any ? X or ! look under network adapters - click on the + and see if you have the adapter listed - check if it has any X or ! or ?
As you have downloaded the driver from the website - you can right click on the device and remove - now reboot and let windows detect the new hardware and then it will ask for the driver again - see if that installs correctly
If you want to go back to before you installed the device - try a system restore start>programs>accessories>system tools>system recovery - choose a date to before the problem , that should clear the program and the registry, and then you can try to load the driver again

U.S. Robotics... | Answered on Mar 25, 2010


Check for other site i think anything driver should be friend if you buy it direct for better outlet

U.S. Robotics... | Answered on Dec 07, 2009


These instructions assume Windows XP. Correct me if I'm wrong.

Insert the adapter.

Navigate to Control Panel (classic view) > Administrative Tools > Computer Management

In the Computer Management window, select "Device Manager" in the left-hand menu.

Click the + sign in the "Network Adapters" field.

If the adapter shows underneath "network adapters", follow the instructions below to completely remove it's drivers.

It's a little involved...:

1.)Go to the device in the device manager>Right-click>Properties.....

2.)Click "Driver Details" and make note of all the files listed. Once the device is gone, you need to delete those files......

Secondly, you need to find the .inf responsible for it's installation.....

3.)Go to the Details Tab, and highlight the long string....Theres a drop down at the top, it should be on "Device Instance ID" (XP, might be a tad off on the verbage)

4.)Press control+C to copy it....

Looks something like the following....

USB\VID_03F0&PID_4F11&REV_0100&MI_00

5.)Navigate to C:\WINDOWS\inf in Windows Explorer (My Computer)

6.)Press F3 and copy that string to the "A word or phrase...". Make sure, under "More Advanced Options", "Search system folders", Search hidden...", and "Search subfolders" are all checked.

7.)Perform the search. If nothing is found, take off a chunk at the end, 1 at a time, going up to the &...

1st... USB\VID_03F0&PID_4F11&REV_0100&MI_00
2nd... USB\VID_03F0&PID_4F11&REV_0100
3rd... USB\VID_03F0&PID_4F11

...etc, uintil you get a hit, with a "Driverfilename.INF". Rename that .inf file to .OLD.

7.)Now go back to the earlier part where you found all the listed drivers in the Driver Details tab, and rename them all to .something, or remove them to a safe directory outside the systemroot.....

8.)Reinstall your Drivers for the device, and plug it back in and you should have new drivers...

U.S. Robotics... | Answered on Sep 20, 2009


u must check if the coverage is rhight or not when face this problem

U.S. Robotics... | Answered on Jun 20, 2009


Try to turn off the DHCP server in the secound router, that way it'll be a swich technically, and set the secound router's fix ip address to something different, because I'm quite sure that both routers have the same 192.168.0.1 IP address and that's nogood.
Set it to anyting from 192.168.0.2 to 192.168.0.254

U.S. Robotics... | Answered on Nov 26, 2008


wat ever man

U.S. Robotics... | Answered on Nov 18, 2008


assuming you mean xbox360, there should be a seperate menu for wireless connections in the network settings, as when it finds the signal it then asks for the keycode security number, but as far as i know the old xbox doesnt support wireless.

U.S. Robotics... | Answered on Sep 09, 2007


let you router allocate the ip addresses manually by enabling DHCP and restart the router,and remove the usb adapter from the usb port and reconnect it, but when you right click on the taskbar on the little pc icons for your connection click enable WZC windows wireless Zero configuration as this will dissable the software you got with the usb adapter and hopefully make the connection more stable, but ensure you have a strong signal.

U.S. Robotics... | Answered on Jun 01, 2007

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adaptet seems conected but dont

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