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Bewildering Limited Connectivity

Discussion in 'Networking' started by CorvusMarinus, Mar 6, 2015.

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  1. CorvusMarinus

    CorvusMarinus Thread Starter

    Joined:
    Mar 6, 2015
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    I live in a village in the Republic of Georgia with a Georgian family which has been gracious enough to facilitate wifi, set up by an ex-son-in-law, a mailman who is still the family tech go-to (and speaks no English, like the rest of the family). Our current internet provider has worked well for the past month. As forewarning, my computer knowledge is not great.

    A few days ago I traveled from Georgia to Armenia and back. When I returned, I could not use my home network--I was getting "limited connectivity" (as in, the little yellow triangle). I have not since had this problem on my school network, but my wife's laptop, since our return, has also intermittently been unable to access the internet--often (though not necessarily) when I can, and vice-versa. Hers seems to be able to access internet far more often than mine.

    The Windows diagnostics tool has been unhelpful, and usually claims it can't figure out the problem. I have tried resetting the adapter and the router. I have updated my drivers. I have renewed my IP. I have restarted my computer. I have run a malware scan.

    Three times I got internet back, but each method (the first two, anyway) has only worked the one time. The first time I fixed it, I disabled all wifi "items" except IPv6/IPv4. Internet was immediately restored. It remained operational after I had re-enabled these items, all afternoon, until I slept and re-woke my computer. The second time, I turned off my antivirus shields. Once again, when I re-enabled them, internet remained. Similarly, having slept my laptop and re-woken it, I lost internet again, and now fiddling with the antivirus doesn't have any effect. A third time, just now, I turned off IPv6, refreshed the connection, and turned it back on. All of a sudden, internet. We'll see how long this lasts.

    I do have the username and password to the router and can adjust the settings from my laptop. I have not yet tried to communicate the problem to the son-in-law; due to the language barrier, and as I'm not sure whether his technical abilities will be able to determine whether it's a problem with my computer or the router, I'm saving that as a last resort.

    Any help would be appreciated.

    Here is the latest ipconfig readout from command prompt, while the internet was down:

    Microsoft Windows [Version 6.3.9600]
    (c) 2013 Microsoft Corporation. All rights reserved.

    Windows IP Configuration

    Host Name . . . . . . . . . . . . : Xibalba
    Primary Dns Suffix . . . . . . . :
    Node Type . . . . . . . . . . . . : Hybrid
    IP Routing Enabled. . . . . . . . : No
    WINS Proxy Enabled. . . . . . . . : No
    DNS Suffix Search List. . . . . . : BlinkAP

    Wireless LAN adapter Local Area Connection* 2:

    Media State . . . . . . . . . . . : Media disconnected
    Connection-specific DNS Suffix . :
    Description . . . . . . . . . . . : Microsoft Wi-Fi Direct Virtual Adapter #2

    Physical Address. . . . . . . . . : 1A-E3-47-1B-AD-4D
    DHCP Enabled. . . . . . . . . . . : Yes
    Autoconfiguration Enabled . . . . : Yes

    Wireless LAN adapter Wi-Fi:

    Connection-specific DNS Suffix . : BlinkAP
    Description . . . . . . . . . . . : Qualcomm Atheros AR9485 Wireless Network
    Adapter
    Physical Address. . . . . . . . . : 28-E3-47-1B-AD-4D
    DHCP Enabled. . . . . . . . . . . : Yes
    Autoconfiguration Enabled . . . . : Yes
    Link-local IPv6 Address . . . . . : fe80::e5fb:bb5c:4da1:e01a%4(Preferred)
    IPv4 Address. . . . . . . . . . . : 192.168.16.100(Preferred)
    Subnet Mask . . . . . . . . . . . : 255.255.255.0
    Lease Obtained. . . . . . . . . . : Friday, March 6, 2015 8:43:31 AM
    Lease Expires . . . . . . . . . . : Friday, March 6, 2015 10:43:31 AM
    Default Gateway . . . . . . . . . : 192.168.16.1
    DHCP Server . . . . . . . . . . . : 192.168.16.1
    DHCPv6 IAID . . . . . . . . . . . : 321446727
    DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-1A-6C-EF-F6-D8-50-E6-E0-B9-C0

    DNS Servers . . . . . . . . . . . : 192.168.16.1
    NetBIOS over Tcpip. . . . . . . . : Enabled

    Ethernet adapter Ethernet:

    Media State . . . . . . . . . . . : Media disconnected
    Connection-specific DNS Suffix . :
    Description . . . . . . . . . . . : Realtek PCIe GBE Family Controller
    Physical Address. . . . . . . . . : D8-50-E6-E0-B9-C0
    DHCP Enabled. . . . . . . . . . . : Yes
    Autoconfiguration Enabled . . . . : Yes

    Tunnel adapter isatap.BlinkAP:

    Media State . . . . . . . . . . . : Media disconnected
    Connection-specific DNS Suffix . : BlinkAP
    Description . . . . . . . . . . . : Microsoft ISATAP Adapter #6
    Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
    DHCP Enabled. . . . . . . . . . . : No
    Autoconfiguration Enabled . . . . : Yes



    And now, working again:

    Windows IP Configuration

    Host Name . . . . . . . . . . . . : Xibalba
    Primary Dns Suffix . . . . . . . :
    Node Type . . . . . . . . . . . . : Hybrid
    IP Routing Enabled. . . . . . . . : No
    WINS Proxy Enabled. . . . . . . . : No

    Wireless LAN adapter Local Area Connection* 2:

    Media State . . . . . . . . . . . : Media disconnected
    Connection-specific DNS Suffix . :
    Description . . . . . . . . . . . : Microsoft Wi-Fi Direct Virtual Adapter #2

    Physical Address. . . . . . . . . : 1A-E3-47-1B-AD-4D
    DHCP Enabled. . . . . . . . . . . : Yes
    Autoconfiguration Enabled . . . . : Yes

    Wireless LAN adapter Wi-Fi:

    Connection-specific DNS Suffix . :
    Description . . . . . . . . . . . : Qualcomm Atheros AR9485 Wireless Network
    Adapter
    Physical Address. . . . . . . . . : 28-E3-47-1B-AD-4D
    DHCP Enabled. . . . . . . . . . . : Yes
    Autoconfiguration Enabled . . . . : Yes
    Link-local IPv6 Address . . . . . : fe80::e5fb:bb5c:4da1:e01a%4(Preferred)
    IPv4 Address. . . . . . . . . . . : 192.168.1.154(Preferred)
    Subnet Mask . . . . . . . . . . . : 255.255.255.0
    Lease Obtained. . . . . . . . . . : Friday, March 6, 2015 9:06:44 AM
    Lease Expires . . . . . . . . . . : Friday, March 6, 2015 9:26:16 AM
    Default Gateway . . . . . . . . . : 192.168.1.1
    DHCP Server . . . . . . . . . . . : 192.168.1.1
    DHCPv6 IAID . . . . . . . . . . . : 321446727
    DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-1A-6C-EF-F6-D8-50-E6-E0-B9-C0

    DNS Servers . . . . . . . . . . . : 192.168.1.1
    NetBIOS over Tcpip. . . . . . . . : Enabled

    Ethernet adapter Ethernet:

    Media State . . . . . . . . . . . : Media disconnected
    Connection-specific DNS Suffix . :
    Description . . . . . . . . . . . : Realtek PCIe GBE Family Controller
    Physical Address. . . . . . . . . : D8-50-E6-E0-B9-C0
    DHCP Enabled. . . . . . . . . . . : Yes
    Autoconfiguration Enabled . . . . : Yes

    Tunnel adapter Local Area Connection* 3:

    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. . . . . . . . . . . : 2001:0:5ef5:79fb:30d7:3d43:3f57:fe65(Pref
    erred)
    Link-local IPv6 Address . . . . . : fe80::30d7:3d43:3f57:fe65%5(Preferred)
    Default Gateway . . . . . . . . . : ::
    DHCPv6 IAID . . . . . . . . . . . : 134217728
    DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-1A-6C-EF-F6-D8-50-E6-E0-B9-C0

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

    Tunnel adapter isatap.{8F874849-1F45-4804-AF81-3F735B709F86}:

    Media State . . . . . . . . . . . : Media disconnected
    Connection-specific DNS Suffix . :
    Description . . . . . . . . . . . : Microsoft ISATAP Adapter #5
    Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
    DHCP Enabled. . . . . . . . . . . : No
    Autoconfiguration Enabled . . . . : Yes
     
  2. TerryNet

    TerryNet Moderator

    Joined:
    Mar 23, 2005
    Messages:
    79,560
    First Name:
    Terry
    You had an apparently good IP configuration both times.

    IF you login to the router change the lease time for the Dhcp server to something larger--say, two days. Pretty sure that's not causing you any problems, but there is no sense in having a shorter lease time unless there are a lot of devices coming and going (like at a free Wi-Fi hotspot).

    To continue troubleshooting the next time you cannot access the internet try these tests in a Command Prompt ...

    ping 192.168.1.1

    ping 8.8.4.4

    ping yahoo.com


    Those test communication with the router, a web site, and the DNS server, respectively.
     
  3. CorvusMarinus

    CorvusMarinus Thread Starter

    Joined:
    Mar 6, 2015
    Messages:
    3
    As an update, I'm still experiencing difficulties, as is my wife (and once again, often when one laptop isn't working the other is). The only solution that seems to last beyond a computer sleep is to lock the IP at 192.168.1.154. That will last for a day or two before I have to start over.

    TerryNet, the first ping was successful and the other two were not.
     
  4. TerryNet

    TerryNet Moderator

    Joined:
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    Messages:
    79,560
    First Name:
    Terry
    So, you can have the situation when both PCs are connected to and communicating with the router but one can access the internet while the other cannot?
     
  5. CorvusMarinus

    CorvusMarinus Thread Starter

    Joined:
    Mar 6, 2015
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    Yes, I believe so.
     
  6. TerryNet

    TerryNet Moderator

    Joined:
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    Messages:
    79,560
    First Name:
    Terry
    I cannot think of what could be causing that.
     
  7. Stanr691

    Stanr691

    Joined:
    Feb 15, 2015
    Messages:
    49
    Maybe they are somehow getting the same IP address via DHCP. Or something is getting a duplicate IP anyway. Odd, but I've seen it happen. You could try putting static IPs on both devices and see if that eliminates your issue.
     
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