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None, but not sure WHAT problem was. I'm on Windows 7 Home Premium, all maintenance up to date. For some reason, all of a sudden my Toshiba laptop could not access Internet from home; tried at other Wi-Fi sites that used to work, but still didn't work. Message: "Reinsert your Wireless Network Adapter Windows can't connect to ______ because the Wireless Network Adapter has been removed. Reinsert the Network Adapter and then try connecting again." Tried many things, including going back to a Backup Recovery a month ago, when everything worked. Ran CCleaner, Advanced Systems Care, SpyBot*, Windows Defender, Malware Anti-malware, Super Anti-Spyware, and Avast!* scans - nothing showed up. * - Brought up at Startup time, along with ZoneAlarm.
Downloaded Realtek zipped file, installed, rebooted; still could not get my Toshiba laptop to work. Got new message: "No REALTEK RTL8187B Wireless LAN" BTW: Also went to Tobshiba support - very hard to figure out where drivers were - and eventually downloaded from there, installed, rebooted, still did not work. Tried some suggestions on Microsoft support website - unsuccessful. Tried also IPConfig/Release All and got msg saying Operation Failed After 3 days of trying many things, wound up going back to the original release as it came from the vendor. Everything worked immediately, so I am not sure what/why problem was.
Not sure what my problem was, but this did not resolve problem. BUT I cannot say, with any certainty, that it was a Realtek problem
Get the latest driver here and use realteks wireless utility to input your security code search for networks when you see yours double click it and input your code barleybob http://220.127.116.11/downloads/downloadsView.aspx?Langid=1&PNid=1&PFid=1&Level=6&Conn=5&DownTypeID=3&GetDown=false&Downloads=true#RTL8187B
After a computer crash and re-instal from software my USB 2.0 Network adapter did not work anymore, till I did Download drivers for Realtek RTL8187B Wireless 802.11b/g 54Mbps USB 2.0 Network Adapter. Now the computer reconizes it and it seams to work properly again. I did not yet used it til now.
I did have made several tries until the software and hardware works properly. Realtek RTL8187B Wireless 802.11b/g 54Mbps USB 2.0 Network Adapter works again on my computer after re-instal with the software from CNET.
In the beginning I thought, maybe the hardware had an defect. And several tries to re-instal the hardware and coresponding software did not work at all. After research on CNET and download from latest update software and instal it, the hardware came back to "live". So thanks to CNET.
Have never experienced any problems. Updates automatically with Windows Update.
Range of distance is lacking somewhat. Must have the most recent driver file with a Microsoft Hardware Compatibility digital signature,so it is compatible with Vista. The driver file here is not most recent. Newer version 6.1162.066.2009 available.