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I'm having a really annoying problem which is making my laptop almost unusable and a hassle to use. My wireless network adapter will suddenly get "limited connectivity", won't connect to the internet but will still get the router.

Disabling and then enabling it will cause my computer to freeze, requiring a hard restart. The same with troubleshooting. The only thing which fixes this is a fresh reboot, however it then occurs again within the hour.

Samsung RV511 (i5) notebook from around 2010
4GB RAM, Intel(R)Core(TM) i5 CPU M [email protected] 2.67GHz

Came with Windows 7 64bit installed, issue began on this.
I installed Windows 8 64bit Pro a month ago, did not reset settings. Problem persists
Broadcom 802.11n wireless network adapter
Device ID 4727
Driver date: 13/03/2012
Driver: 5.100.245.20

It's the latest driver. I keep uninstalling the driver and installing random ones from 2006, 2011 etc however the same problem persists.

This is my IP config when the adapter can't find a connection:
Code:
Microsoft Windows [Version 6.2.9200]
(c) 2012 Microsoft Corporation. All rights reserved.

C:\Users\Stefan>ipconfig/all

Windows IP Configuration

   Host Name . . . . . . . . . . . . : Zangara-RV511
   Primary Dns Suffix  . . . . . . . :
   Node Type . . . . . . . . . . . . : Hybrid
   IP Routing Enabled. . . . . . . . : No
   WINS Proxy Enabled. . . . . . . . : No
   DNS Suffix Search List. . . . . . : Home

Wireless LAN adapter Local Area Connection* 14:

   Media State . . . . . . . . . . . : Media disconnected
   Connection-specific DNS Suffix  . :
   Description . . . . . . . . . . . : Microsoft Wi-Fi Direct Virtual Adapter
   Physical Address. . . . . . . . . : 02-1B-B1-A8-0E-96
   DHCP Enabled. . . . . . . . . . . : Yes
   Autoconfiguration Enabled . . . . : Yes

Wireless LAN adapter Local Area Connection* 13:

   Media State . . . . . . . . . . . : Media disconnected
   Connection-specific DNS Suffix  . :
   Description . . . . . . . . . . . : Microsoft Hosted Network Virtual Adapter
   Physical Address. . . . . . . . . : 00-1B-B1-A8-0E-96
   DHCP Enabled. . . . . . . . . . . : Yes
   Autoconfiguration Enabled . . . . : Yes

Wireless LAN adapter WiFi:

   Connection-specific DNS Suffix  . : Home
   Description . . . . . . . . . . . : Broadcom 802.11n Network Adapter
   Physical Address. . . . . . . . . : 00-1B-B1-A8-0E-96
   DHCP Enabled. . . . . . . . . . . : Yes
   Autoconfiguration Enabled . . . . : Yes
   Link-local IPv6 Address . . . . . : fe80::a143:bcea:fcc0:e5e7%18(Preferred)
   IPv4 Address. . . . . . . . . . . : 192.168.0.4(Preferred)
   Subnet Mask . . . . . . . . . . . : 255.255.255.0
   Lease Obtained. . . . . . . . . . : 02 March 2013 00:28:59
   Lease Expires . . . . . . . . . . : 03 March 2013 00:29:03
   Default Gateway . . . . . . . . . : 192.168.0.1
   DHCP Server . . . . . . . . . . . : 192.168.0.1
   DHCPv6 IAID . . . . . . . . . . . : 301996977
   DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-18-38-BD-35-E8-11-32-1D-21-66

   DNS Servers . . . . . . . . . . . : 192.168.0.1
   NetBIOS over Tcpip. . . . . . . . : Enabled

Ethernet adapter Bluetooth Network Connection:

   Media State . . . . . . . . . . . : Media disconnected
   Connection-specific DNS Suffix  . :
   Description . . . . . . . . . . . : Bluetooth Device (Personal Area Network)
   Physical Address. . . . . . . . . : 00-1B-B1-F8-DC-FC
   DHCP Enabled. . . . . . . . . . . : Yes
   Autoconfiguration Enabled . . . . : Yes

Ethernet adapter Local Area Connection:

   Media State . . . . . . . . . . . : Media disconnected
   Connection-specific DNS Suffix  . :
   Description . . . . . . . . . . . : Realtek PCIe GBE Family Controller
   Physical Address. . . . . . . . . : E8-11-32-1D-21-66
   DHCP Enabled. . . . . . . . . . . : Yes
   Autoconfiguration Enabled . . . . : Yes

Tunnel adapter Local Area Connection* 12:

   Connection-specific DNS Suffix  . :
   Description . . . . . . . . . . . : Teredo Tunneling Pseudo-Interface
   Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
   DHCP Enabled. . . . . . . . . . . : No
   Autoconfiguration Enabled . . . . : Yes
   IPv6 Address. . . . . . . . . . . : 2001:0:9d38:953c:30c1:13b1:3f57:fffb(Pref
erred)
   Link-local IPv6 Address . . . . . : fe80::30c1:13b1:3f57:fffb%16(Preferred)
   Default Gateway . . . . . . . . . : ::
   DHCPv6 IAID . . . . . . . . . . . : 469762048
   DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-18-38-BD-35-E8-11-32-1D-21-66

   NetBIOS over Tcpip. . . . . . . . : Disabled

Tunnel adapter isatap.Home:

   Media State . . . . . . . . . . . : Media disconnected
   Connection-specific DNS Suffix  . : Home
   Description . . . . . . . . . . . : Microsoft ISATAP Adapter
   Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
   DHCP Enabled. . . . . . . . . . . : No
   Autoconfiguration Enabled . . . . : Yes

C:\Users\Stefan>

This is what it looks like when I restart and it's working:
Microsoft Windows [Version 6.2.9200]
(c) 2012 Microsoft Corporation. All rights reserved.

C:\Users\Stefan>ipconfig/all

Windows IP Configuration

   Host Name . . . . . . . . . . . . : Zangara-RV511
   Primary Dns Suffix  . . . . . . . :
   Node Type . . . . . . . . . . . . : Hybrid
   IP Routing Enabled. . . . . . . . : No
   WINS Proxy Enabled. . . . . . . . : No
   DNS Suffix Search List. . . . . . : Home

Wireless LAN adapter Local Area Connection* 14:

   Media State . . . . . . . . . . . : Media disconnected
   Connection-specific DNS Suffix  . :
   Description . . . . . . . . . . . : Microsoft Wi-Fi Direct Virtual Adapter
   Physical Address. . . . . . . . . : 02-1B-B1-A8-0E-96
   DHCP Enabled. . . . . . . . . . . : Yes
   Autoconfiguration Enabled . . . . : Yes

Wireless LAN adapter Local Area Connection* 13:

   Media State . . . . . . . . . . . : Media disconnected
   Connection-specific DNS Suffix  . :
   Description . . . . . . . . . . . : Microsoft Hosted Network Virtual Adapter
   Physical Address. . . . . . . . . : 00-1B-B1-A8-0E-96
   DHCP Enabled. . . . . . . . . . . : Yes
   Autoconfiguration Enabled . . . . : Yes

Wireless LAN adapter WiFi:

   Connection-specific DNS Suffix  . : Home
   Description . . . . . . . . . . . : Broadcom 802.11n Network Adapter
   Physical Address. . . . . . . . . : 00-1B-B1-A8-0E-96
   DHCP Enabled. . . . . . . . . . . : Yes
   Autoconfiguration Enabled . . . . : Yes
   Link-local IPv6 Address . . . . . : fe80::a143:bcea:fcc0:e5e7%18(Preferred)
   IPv4 Address. . . . . . . . . . . : 192.168.0.4(Preferred)
   Subnet Mask . . . . . . . . . . . : 255.255.255.0
   Lease Obtained. . . . . . . . . . : 02 March 2013 00:56:51
   Lease Expires . . . . . . . . . . : 03 March 2013 00:56:58
   Default Gateway . . . . . . . . . : 192.168.0.1
   DHCP Server . . . . . . . . . . . : 192.168.0.1
   DHCPv6 IAID . . . . . . . . . . . : 301996977
   DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-18-38-BD-35-E8-11-32-1D-21-66

   DNS Servers . . . . . . . . . . . : 192.168.0.1
   NetBIOS over Tcpip. . . . . . . . : Enabled

Ethernet adapter Bluetooth Network Connection:

   Media State . . . . . . . . . . . : Media disconnected
   Connection-specific DNS Suffix  . :
   Description . . . . . . . . . . . : Bluetooth Device (Personal Area Network)
   Physical Address. . . . . . . . . : 00-1B-B1-F8-DC-FC
   DHCP Enabled. . . . . . . . . . . : Yes
   Autoconfiguration Enabled . . . . : Yes

Ethernet adapter Local Area Connection:

   Media State . . . . . . . . . . . : Media disconnected
   Connection-specific DNS Suffix  . :
   Description . . . . . . . . . . . : Realtek PCIe GBE Family Controller
   Physical Address. . . . . . . . . : E8-11-32-1D-21-66
   DHCP Enabled. . . . . . . . . . . : Yes
   Autoconfiguration Enabled . . . . : Yes

Tunnel adapter Local Area Connection* 12:

   Connection-specific DNS Suffix  . :
   Description . . . . . . . . . . . : Teredo Tunneling Pseudo-Interface
   Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
   DHCP Enabled. . . . . . . . . . . : No
   Autoconfiguration Enabled . . . . : Yes
   IPv6 Address. . . . . . . . . . . : 2001:0:9d38:953c:875:2a92:3f57:fffb(Prefe
rred)
   Link-local IPv6 Address . . . . . : fe80::875:2a92:3f57:fffb%16(Preferred)
   Default Gateway . . . . . . . . . : ::
   NetBIOS over Tcpip. . . . . . . . : Disabled

Tunnel adapter isatap.Home:

   Media State . . . . . . . . . . . : Media disconnected
   Connection-specific DNS Suffix  . : Home
   Description . . . . . . . . . . . : Microsoft ISATAP Adapter
   Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
   DHCP Enabled. . . . . . . . . . . : No
   Autoconfiguration Enabled . . . . : Yes

C:\Users\Stefan>
And this event/error sometimes seems to be appearing in my Events log.

"Your computer was not assigned an address from the network (by the DHCP Server) for the Network Card with network address 0x001BB1A80E96. The following error occurred: 0x79. Your computer will continue to try and obtain an address on its own from the network address (DHCP) server." DHCP-Client

And I always get this one constantly:

"Failed to schedule Software Protection service for re-start at 2113-02-08T21:58:11Z. Error Code: 0x80041316" Security-SPP

I hope this is enough information.

Can anyone help me? :angel:
 

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Re-install with the latest driver available using compatibility mode to select Windows 7 as the compatibility version.
Code:
[URL="http://www.samsung.com/us/support/owners/product/NP-RV511-A01US#"]Wireless LAN,BROADCOM 														(Driver) 														(ver.5.100.82.95) 												[/URL] 											 											 										 										 											This driver is Broadcom Wireless Lan.Please referece the below install steps.

[LIST=1]
[*]Click  the attached file and press ''Save'' button.Then press ''Browse...''  button and select the place where you want to save the selected file.
[*]After  downloading the file, find the downloaded file and right_click on the  file.On pop_up menu, select ''Extract All...'' option.
[*]On  ''Extraction Wizard'', press ''Next'' button and press ''Browse...''  button.Select a folder to extract file and press ''Next'' again.
[*]After the file has been sucessfully extracted, see the extracted files.Run ''inst.exe'' file or ''inst.exe'' file in the folder.

- This driver may not be appropriate depending on the computer model.
[/LIST]
Thanks.
 										
 									
 								 								Windows 7(32bit,64bit) 								Sep 22, 2012 								MULTI LANGUAGE									 								46.03

To fully re-install the network driver, use the following general steps.
  1. First, download the driver you plan to install. Then do the next steps.
  2. Click the Start Button
  3. Right Click My Computer/Computer
  4. Click Manage
  5. Click Device Manager from the list on the left
  6. Expand Network adapters
  7. Right click the Broadcom Wireless Lan device
  8. Click Uninstall (do not click OK in the dialog box that pops up after hitting Uninstall)
  9. Put a tick in Delete driver software for this device (if this option is available, otherwise just hit OK) and hit OK
  10. Restart your computer only if Windows asks you to.
  11. Install the latest driver for the device.

Alternatively:
  1. Login as an adminstrative user.
  2. First, download the driver you plan to install. Then do the next steps.
  3. Click Start Button
  4. Click Control Panel
  5. Click Hardware and Sound
  6. Click Device Manager (the last link under Devices and Printers)
  7. Expand Network adapters
  8. Right click the Broadcom Wireless Lan device
  9. Click Uninstall (do not click OK in the dialog box that pops up after hitting Uninstall)
  10. Put a tick in Delete driver software for this device (if this option is available, otherwise just hit OK) and hit OK
  11. Restart your computer only if Windows asks you to.
  12. Install the latest driver for the device.



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