Windows 8 and 8.1 Forums


WiFi / SSID / limited connection

  1. #1


    Posts : 8
    Win 8.1 Pro

    WiFi / SSID / limited connection


    Hi all.
    I have a strange connection issue. My router (BT Home Hub 5) has two SSID's, one 2.4GHz and one 5GHz. I also have two WiFi extenders (Netgear N300) in the house, both of which are connected to the 2.4GHz SSID.

    Up until a few days ago, my Win8.1 Pro laptop was comfortably connected to the 2.4GHz SSID and was solid for many months. Now, my laptop refuses to connect directly to that same SSID, but will connect quickly and easily to either of the Extenders.

    When I attempt to connect to the problematic SSID (either by manually entering the security key or using WPS), it connects to the router, but states that the connection is limited (verified by no Internet connection). When I troubleshoot, the result is "WiFi doesn't have a valip IP configuration". The troubleshooter then supposedly fixes this error, but it in fact just connects to one of the extenders.

    I've looked at the adapter (Broadcom 802.11n) settings and all seems to be as it should. DHCP is enabled and all other settings seem to be as they were previously.

    I've tried turning off my firewall (Privatefirewall 7.0), anti-virus (AVG 2015 Free) and other security software (Peerblock 1.2 & SuperAntiSpyware 6.0.1200), then attempting to connect again, but the same connection issues happen so have to rule out any of those as the cause. Windows Firewall is disabled.

    I want to use the problematic SSID as my extenders don't quite give me the same speeds as I was getting. Also, my laptop won't use the 5GHz SSID, as my Apple devices do.

    Can anyone shed any light on what may be going wrong with this one SSID please?
    Thank you in advance.

      My System SpecsSystem Spec

  2. #2


    What IP address does the problematic AP give you?
    Subnet and gateway as well.
    Also include dns addresses it assigns you.

    When the connection is limited, can you reach your local network?
      My System SpecsSystem Spec

  3. #3


    Posts : 8
    Win 8.1 Pro


    Quote Originally Posted by hydranix View Post
    What IP address does the problematic AP give you?
    Subnet and gateway as well.
    Also include dns addresses it assigns you.

    When the connection is limited, can you reach your local network?
    Thanks for your reply. I've got some strange results from a CMD> ipconfig /all:

    Problematic SSID:
    Code:
       Connection-specific DNS Suffix  . :                   (empty)
       Description . . . . . . . . . . . : Broadcom 802.11n Network Adapter
       Physical Address. . . . . . . . . : 90-00-4E-24-E9-79
       DHCP Enabled. . . . . . . . . . . : Yes
       Autoconfiguration Enabled . . . . : Yes
       Link-local IPv6 Address . . . . . : fe80::657e:f38:bd2b:9b51%6(Preferred)
       Autoconfiguration IPv4 Address. . : 169.254.155.81(Preferred)
       Subnet Mask . . . . . . . . . . . : 255.255.0.0
       Default Gateway . . . . . . . . . :                    (empty)
       DHCPv6 IAID . . . . . . . . . . . : 177209422
       DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-1A-7C-26-1D-78-2B-CB-C6-2E-E6
    
       DNS Servers . . . . . . . . . . . : fec0:0:0:ffff::1%1
                                           fec0:0:0:ffff::2%1
                                           fec0:0:0:ffff::3%1
       NetBIOS over Tcpip. . . . . . . . : Enabled
    Alternative SSID - working properly:
    Code:
       Connection-specific DNS Suffix  . : home
       Description . . . . . . . . . . . : Broadcom 802.11n Network Adapter
       Physical Address. . . . . . . . . : 90-00-4E-24-E9-79
       DHCP Enabled. . . . . . . . . . . : Yes
       Autoconfiguration Enabled . . . . : Yes
       Link-local IPv6 Address . . . . . : fe80::657e:f38:bd2b:9b51%6(Preferred)
       IPv4 Address. . . . . . . . . . . : 192.168.1.188(Preferred)
       Subnet Mask . . . . . . . . . . . : 255.255.255.0
       Lease Obtained. . . . . . . . . . : 13 July 2015 16:22:58
       Lease Expires . . . . . . . . . . : 03 August 2015 16:23:03
       Default Gateway . . . . . . . . . : 192.168.1.254
       DHCP Server . . . . . . . . . . . : 192.168.1.254
       DHCPv6 IAID . . . . . . . . . . . : 177209422
       DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-1A-7C-26-1D-78-2B-CB-C6-2E-E6
    
       DNS Servers . . . . . . . . . . . : 192.168.1.254
       NetBIOS over Tcpip. . . . . . . . : Enabled
    I do appear to have local network connection when the problematic SSID is connected but don't have any other devices connected currently so can't check conclusively.

    Obtained this from the troubleshooter:
    Code:
    PrintWindows Network Diagnostics Publisher details 
    
    Issues found 
    "WiFi" doesn't have a valid IP configuration"WiFi" doesn't have a valid IP configuration Not fixed Not Fixed 
    Investigate router or broadband modem issues Failed 
    Reset the "WiFi" adapter Completed 
    
    Issues found Detection details 
    "WiFi" doesn't have a valid IP configuration Not fixed Not Fixed 
     
    Investigate router or broadband modem issues Failed 
     
    This can sometimes resolve an intermittent problem. 
    InformationalNetwork Diagnostics Log 
    File Name:  CA0CE45F-9769-42C4-BA11-F74BB79B3C37.Repair.1.etl 
    
    InformationalDiagnostics Information (Network Adapter) 
    Details about network adapter diagnosis: 
    
    Network adapter WiFi driver information:
    
       Description . . . . . . . . . . : Broadcom 802.11n Network Adapter
       Manufacturer  . . . . . . . . . : Broadcom
       Provider  . . . . . . . . . . . : Microsoft
       Version   . . . . . . . . . . . : 6.30.223.102
       Inf File Name . . . . . . . . . : C:\WINDOWS\INF\netbc64.inf
       Inf File Date . . . . . . . . . : 22 August 2013  07:01:07
       Section Name  . . . . . . . . . : BCM43XNG_NT63
       Hardware ID . . . . . . . . . . : pci\ven_14e4&dev_4727
       Instance Status Flags . . . . . : 0x180200a
       Device Manager Status Code  . . : 0
       IfType  . . . . . . . . . . . . : 71
       Physical Media Type . . . . . . : 9
    
     
    InformationalDiagnostics Information (Wireless Connectivity) 
    Details about wireless connectivity diagnosis: 
    
    Information for connection being diagnosed
     Interface GUID: 1c824528-b26e-4b85-9527-b8cbc009bc8b
     Interface name: Broadcom 802.11n Network Adapter
     Interface type: Native WiFi
    
    Connection incident diagnosed
     Auto Configuration ID: 2
     Connection ID: 2
    
    Connection status summary
     Connection started at: 2015-07-13 16:55:21-276
     Profile match: Success
     Pre-Association: Success
     Association: Success
     Security and Authentication: Success
    
     Information for Connection ID 2
     Connection started at: 2015-07-13 16:55:21-276
      Auto Configuration ID: 2
      Profile: (Problematic SSID)
      SSID: (Problematic SSID)
      SSID length: 5
      Connection mode: Infra
      Security: Yes
      Pre-Association and Association
       Connectivity settings provided by hardware manufacturer (IHV): No
       Security settings provided by hardware manufacturer (IHV): No
       Profile matches network requirements: Success
       Pre-association status: Success
       Association status: Success
        Last AP:  00-8a-ae-d0-65-70
      Security and Authentication
       Configured security type: WPA2-PSK
       Configured encryption type: CCMP(AES)
       802.1X protocol: No
       Key exchange initiated: Yes
        Unicast key received: Yes
        Multicast key received: Yes
       Number of security packets received: 0
       Number of security packets sent: 0
       Security attempt status: Success
     Connectivity
       Packet statistics
        Ndis Rx: 0
        Ndis Tx: 0
        Unicast decrypt success: 8
        Multicast decrypt success: 0
        Unicast decrypt failure: 0
        Multicast decrypt failure: 0
        Rx success: 373
        Rx failure: 32
        Tx success: 140
        Tx failure: 0
        Tx retry: 0
        Tx multiple retry: 0
        Tx max lifetime exceeded: 0
        Tx ACK failure: 0
       Roaming history: 0 item(s)
    
     
    InformationalDiagnostics Information (Wireless Connectivity) 
    Details about wireless connectivity diagnosis: 
    
    For complete information about this session see the wireless connectivity information event.
    
    Helper Class: Auto Configuration
     Initialise status: Success
    
    Information for connection being diagnosed
     Interface GUID: 1c824528-b26e-4b85-9527-b8cbc009bc8b
     Interface name: Broadcom 802.11n Network Adapter
     Interface type: Native WiFi
    
    Result of diagnosis: There may be problem
    Last edited by seedee; 13 Jul 2015 at 11:09.
      My System SpecsSystem Spec

  4. #4


    Ah, I see exactly what's wrong.

    The top IP address you have there is within 169.254.0.0/16
    That's the special range reserved for self assignment by devices that are unable to acquire a true ip address. (called "link-local")

    The top AP either isn't receiving your DHCP request, or you're not receiving any DHCP response. (usually the latter)


    Check the AP's settings to be sure that DHCP is still properly functioning. I also see that you use WPA encryption. Domyour range extenders operate under a different subnet than the AP?
      My System SpecsSystem Spec

  5. #5


    Posts : 8
    Win 8.1 Pro


    Quote Originally Posted by hydranix View Post
    ..//..
    Check the AP's settings to be sure that DHCP is still properly functioning. I also see that you use WPA encryption. Domyour range extenders operate under a different subnet than the AP?
    The router DHCP must be functioning correctly as I am able to connect with the other SSID and the extenders connect to it correctly.
    My Apple devices (TV/iPhones/iPad) also correctly connect directly to its' 5GHz SSID. Yes, both SSID's use WPA2 and the same password.

    The extenders use the same IP range and subnet as the AP:
    Code:
    Extender IP Info
    MAC Address    A0:63:91:7F:A2:B0
    IP Address    192.168.1.250
    DHCP Client    ON
    IP Subnet Mask    255.255.255.0
    Gateway IP Address    192.168.1.254
    Domain Name Server    192.168.1.254
      My System SpecsSystem Spec

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