Question about Toshiba Realtek RTL8187B Wireless 802.11b/g 54Mbps USB 2.0 Network Adapter

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My toshiba laptop with a realtek rtl8187b wireless 802.11b/g usb 2.0 network adapter, is connected to a wifi network with internet, but periodically the connection is lost (connected and automatically reconnected)

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  • Richard Page
    Richard Page Mar 17, 2011

    That can only realy be a connection signal stregnth problem does it happen whan you are close to the wifi hub?

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  • 51 Answers

This is not a problem. Wireless connections sometimes tend to be inconsistent. Try closing the distance between your laptop and the wireless network adapter.

Posted on Mar 17, 2011

  • Dilaram Mar 19, 2011

    Yah, it happens sometimes even when you are close to your hub. On the other hand you can try reinstalling the drivers for your network adapter.

    Link:http://download.cnet.com/Realtek-RTL8187...

    Hope it works.

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Those drivers are readily available if you go to the realtek site and download them.

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Try checking your computer's driver. Right click on Computer. Go to Device Manager. The device drivers are listed in the device manager. Drivers are used to make your computer parts communicate with the operating system. If it has a problem, then the part won't work.

Check for your wireless driver - update it. If no go, then try turning off your wireless adapter in your computer and turn it on. Check = if no go. Try going to safe mode with networking.

To go to safe mode. Do the following:

1. Restart your computer. While it's starting or booting, keep tapping F8 until you see the options to go to safe mode with networking. Use the arrow keys to highlight safe mode with networking.

2. Let your computer start in safe mode. Check if wireless is working fine.

If you want to avoid this kind of problem in the future or if you want to make sure that your computer is running well, then install Radarsync.

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Realtek RTL8187B page.
http://www.realtek.com.tw/products/productsView.aspx?Langid=1&PFid=1&Level=6&Conn=5&ProdID=143

Realtek has placed it under RTL8185L drivers, and the links have a weird JAVA loop. Keep trying till it gives you the download. RTL8185_Auto Install Pargram _1.00.0145.zip
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you will have to open up your network connections

click start control panel network connections this may vary depending on your operating system look for local area connection if you see a red X or a yellow exclamation or question mark ! ?
you will need to update or install the driver or it could be firewalled

click start control panel administration tools computer management device manager scroll to network adapters should see a yellow question mark? right click install drivers
the driver might be on the disc supplied by your ISP internet service provider
or the motherboard disc or you might download one if you dont have on a disk
http://download.cnet.com/realtek-rtl8187b-wireless-802/3000-2112_4-206215.html

hope it helps

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http://download.cnet.com/realtek-rtl8187b-wireless-802/3000-2112_4-206215.html

http://download.cnet.com/realtek-rtl8187b-wireless-802/3000-2112_4-202314.html if these packages are not the right
http://download.cnet.com/2000-20_4.html
on the home page you should see a search tab just type in what you are looking for
you might have to try a few times to get it right
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Apr 19, 2012 | Toshiba Realtek RTL8187B Wireless...

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what OS that you use?
try to see add device manager if you use windows os.
make sure that Realtek RTL8187b wireless 802.11bg driver has been installed.

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somebody is accessing your wireless network and getting free internet service from you unless you had setup a wep security! if you have an un-secure network then anybody with a wireless adapter can access your network and access your internet free and drag down the speed of your internet connection.
however, if you do have wep enabled and there is more than one computer connecting then this will slow your connection down as well. please remember that there are some games and gaming sites that are bandwidth hogs and will slow down other computers connection on the same network. also watching streaming videos and gaming at same time can slow down connections as well.

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May 17, 2011 | Toshiba Realtek RTL8187B Wireless...

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Hello b... couple things.

First; see if going into Control PanelNetwork Connections and disabling the wireless network connection, then enabling it again fixes it. If it does then you have a work-around...

Second; there was a Realtek driver update offered by Windows Update. If that has
been installed (Control Panel-Programs and Features-View Installed Updates)
roll it back to the previous driver through Device manager and get the
update direct from either Toshiba or Realtek.

See if that helps.

This seems to be happening with that Wireless card and Vista... let me know what happens please.

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Download the 8187b drivers from Realtek's site. You then need to go in and edit the .inf file to read like this:

;;****************************************************************************
;; IDs for 98SE/ME/2K/XP
;;****************************************************************************
[Realtek]
%RTL8187B.DeviceDesc% = RTL8187B.ndi, USB\VID_0BDA&PID_8197&REV_0200
%RTL8187B.DeviceDesc% = RTL8187B.ndi, USB\VID_0BDA&PID_8189&REV_0200

After the edit, install as usual from the device manager.

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