wrt400n disconnect, unplug to reconnect

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youngs27

Thread Starter
Joined
Apr 29, 2012
Messages
22
The wrt400n works fine.
Except randomly every day or every other day, laptops cannot connect to the router. Router lights are still on, blinking, etc, no change there.
Releasing/renewing IP doesn't work. Turning off wireless radio on laptop and back on doesn't work.
Unplugging and replugging in the router DOES work, and laptops can connect to the router again.
Router is updated to 1.0.02 firmware, sine I thought that was the problem, but after firmware update, problem is still occurring.
Wireless is set to mixed, channel width is auto

Any thoughts?
 

etaf

Moderator
Joined
Oct 2, 2003
Messages
65,435
First Name
Wayne
this could be a DNS issue
would you post the following tests when its working OK and then repeat ALL the tests when it disconnects

if you are also connected by wireless include the xirrus screen shots

------------------------------------------------------------------------
ipconfig /all
If you cannot access the internet with this PC, then you will need to paste the results into something like notepad and then copy onto a machine that can access the internet and post results here

We would like to see the results from ipconfig /all post back the results in a reply here

Hold the Windows key and press R, then type CMD then press Enter to open a command prompt box (A new dialogue box - black with white font, will appear on screen ):

In the command prompt window that opens, type the following command:

Note that there is a space before the /ALL, but there is NOT a space after the / in the following command.

ipconfig /all > network.txt & network.txt

It will export the results to notepad and then automatically open notepad.

Now all you need to do is copy and paste those results to a reply here
to do that:
From the notepad menu - choose Edit - Select all
all the text will be highlighted
Next
From the notepad menu - choose Edit - Copy
Now go back to the forum - reply and then right click in the reply box and paste
------------------------------------------------------------------------

------------------------------------------------------------------------
Ping Tests
If you cannot access the internet with this PC, then you will need to paste the results into something like notepad and then copy onto a machine that can access the internet and post results here
Save the file to a USB flash drive or other removable media. Plug it into the working computer with internet access and copy the file and paste here.

Start> Run {search bar in Vista/W7}> CMD to open a DOS window and type:

Type the following command
Ping {plus the number thats shown against the default gateway shown in above ipconfig /all}
Post back the results
rightclick in the box
select all
enter
control key + C key - to copy
then reply here and
control key + V to paste

Type the following command
Ping google.com
Post back the results
rightclick in the box
select all
enter
control key + C key - to copy
then reply here and
control key + V to paste

Type the following command
Ping 209.183.226.152
post back results
rightclick in the box
select all
enter
control key + C key - to copy
then reply here and
control key + V to paste
For your information only
these tests will check various stages of the connection, the first ping test, ping default gateway checks to see if you still have a connection to the router the next two
Ping google.com & Ping 209.183.226.152 tests the connection to internet , one by name and one by number which checks that the dns is working

------------------------------------------------------------------------

------------------------------------------------------------------------
Run Xirrus Wi-Fi Inspector
Download and install

If you cannot access the internet with this PC, then you will need to copy the program across to the faulty PC
Save the file to a USB flash drive or other removable media. Plug it into the working computer with internet access and copy the file and paste here.


http://www.xirrus.com/Products/Wi-Fi-Inspector.aspx
Direct link to the program is here http://wpc.475a.edgecastcdn.net/00475A/XirrusWiFiInspectorSetup.1.2.0.exe

{If the above link does not work heres another link http://www.pcworld.com/downloads/file_download/fid,77196-order,4/download.html}

Then run and install the program - on a wireless enabled PC/Laptop
if you get an error - You need NET Framework installed for the WiFi Inspector to function.

Run the program

A user guide is available here http://www.xirrus.com/Products/Wi-Fi-Inspector/xirruswifiinspectorguide1-2-0.aspx

post a screen shot of the program running - if there are a lot of networks showing can you click on "networks" top lefthand area - so we can see all the network information, and also post which network "Adapter Name" (1st column) is yours on the list

To post a screen shot of the active window, hold the Alt key and press the PrtScn key. Open the Windows PAINT application and Paste the screen shot. You can then use PAINT to trim to suit, and save it as a JPG format file.
To upload it to the forum, open the full reply window and use the Manage Attachments button to upload it here.
Full details are here http://library.techguy.org/wiki/TSG_Posting_a_Screenshot

Note:
For a reliable (or robust as the Xirrus user guide says) wireless connection you need a signal of about -70 dBm or better.

If you are using the Mac OS then use http://www.istumbler.net/
------------------------------------------------------------------------
 

youngs27

Thread Starter
Joined
Apr 29, 2012
Messages
22
Windows IP Configuration

Host Name . . . . . . . . . . . . : skyMD-HP
Primary Dns Suffix . . . . . . . :
Node Type . . . . . . . . . . . . : Hybrid
IP Routing Enabled. . . . . . . . : No
WINS Proxy Enabled. . . . . . . . : No
DNS Suffix Search List. . . . . . : domain_not_set.invalid

Wireless LAN adapter Wireless Network Connection 3:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Microsoft Virtual WiFi Miniport Adapter #2
Physical Address. . . . . . . . . : *******
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes

Wireless LAN adapter Wireless Network Connection 2:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Microsoft Virtual WiFi Miniport Adapter
Physical Address. . . . . . . . . : ********
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes

Wireless LAN adapter Wireless Network Connection:

Connection-specific DNS Suffix . : domain_not_set.invalid
Description . . . . . . . . . . . : Intel(R) Centrino(R) Wireless-N 1030
Physical Address. . . . . . . . . : *******
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
IPv6 Address. . . . . . . . . . . : 2002:63b7:f069:1234:2817:c469:6e20:56ab(Preferred)
Temporary IPv6 Address. . . . . . : 2002:63b7:f069:1234:568:ecd:5017:7f0b(Preferred)
Link-local IPv6 Address . . . . . : fe80::2817:c469:6e20:56ab%15(Preferred)
IPv4 Address. . . . . . . . . . . : 192.168.1.103(Preferred)
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Lease Obtained. . . . . . . . . . : Thursday, April 26, 2012 2:52:20 PM
Lease Expires . . . . . . . . . . : Monday, April 30, 2012 1:22:30 AM
Default Gateway . . . . . . . . . : fe80::200:ff:fe00:0%15
192.168.1.1
DHCP Server . . . . . . . . . . . : 192.168.1.1
DHCPv6 IAID . . . . . . . . . . . : 374139714
DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-16-F0-5F-73-08-2E-5F-89-90-D6
DNS Servers . . . . . . . . . . . : 192.168.1.1
192.168.0.1
192.168.0.1
NetBIOS over Tcpip. . . . . . . . : Enabled

Ethernet adapter Local Area Connection:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Realtek PCIe GBE Family Controller
Physical Address. . . . . . . . . : *******
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes

Ethernet adapter Bluetooth Network Connection:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Bluetooth Device (Personal Area Network)
Physical Address. . . . . . . . . : *******
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes

Tunnel adapter isatap.{C654773B-89F3-46C4-8754-C9BD4F748A5C}:

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

Tunnel adapter isatap.{E793C378-C59F-443E-8A91-7DF805B367EA}:

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

Tunnel adapter isatap.{94E3FFC7-3991-4F69-8B74-AE4C40B1AC0C}:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Microsoft ISATAP Adapter #3
Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes

Tunnel adapter Teredo Tunneling Pseudo-Interface:

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. . . . . . . . . . . : 2001:0:4137:9e76:817:100f:93af:1836(Preferred)
Link-local IPv6 Address . . . . . : fe80::817:100f:93af:1836%18(Preferred)
Default Gateway . . . . . . . . . :
NetBIOS over Tcpip. . . . . . . . : Disabled

Tunnel adapter isatap.{9B02099D-FB61-4AC2-A7B6-83FB82938259}:

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

Tunnel adapter isatap.domain_not_set.invalid:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . : domain_not_set.invalid
Description . . . . . . . . . . . : Microsoft ISATAP Adapter #4
Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes


Normal conditions. working fine.
 

etaf

Moderator
Joined
Oct 2, 2003
Messages
65,435
First Name
Wayne
theres no need to **** out the mac address or any info we ask you to post here

can we now see all the three PING tests please
 

youngs27

Thread Starter
Joined
Apr 29, 2012
Messages
22
Microsoft Windows [Version 6.1.7601]
Copyright (c) 2009 Microsoft Corporation. All rights reserved.

C:\Users\skyMD>ping 192.168.1.1

Pinging 192.168.1.1 with 32 bytes of data:
Reply from 192.168.1.1: bytes=32 time=4ms TTL=64
Reply from 192.168.1.1: bytes=32 time=1ms TTL=64
Reply from 192.168.1.1: bytes=32 time=1ms TTL=64
Reply from 192.168.1.1: bytes=32 time=2ms TTL=64

Ping statistics for 192.168.1.1:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 1ms, Maximum = 4ms, Average = 2ms

C:\Users\skyMD>

Microsoft Windows [Version 6.1.7601]
Copyright (c) 2009 Microsoft Corporation. All rights reserved.

C:\Users\skyMD>ping www.google.com

Pinging www.l.google.com [74.125.224.81] with 32 bytes of data:
Reply from 74.125.224.81: bytes=32 time=93ms TTL=53
Reply from 74.125.224.81: bytes=32 time=133ms TTL=53
Reply from 74.125.224.81: bytes=32 time=136ms TTL=53
Reply from 74.125.224.81: bytes=32 time=84ms TTL=53

Ping statistics for 74.125.224.81:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 84ms, Maximum = 136ms, Average = 111ms

C:\Users\skyMD>

Microsoft Windows [Version 6.1.7601]
Copyright (c) 2009 Microsoft Corporation. All rights reserved.

C:\Users\skyMD>ping www.google.com

Pinging www.l.google.com [74.125.224.81] with 32 bytes of data:
Reply from 74.125.224.81: bytes=32 time=93ms TTL=53
Reply from 74.125.224.81: bytes=32 time=133ms TTL=53
Reply from 74.125.224.81: bytes=32 time=136ms TTL=53
Reply from 74.125.224.81: bytes=32 time=84ms TTL=53

Ping statistics for 74.125.224.81:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 84ms, Maximum = 136ms, Average = 111ms

C:\Users\skyMD>


This is still working, will check back tonight to see if connection cuts out. Thanks for the help so far...
 

youngs27

Thread Starter
Joined
Apr 29, 2012
Messages
22
Microsoft Windows [Version 6.1.7601]
Copyright (c) 2009 Microsoft Corporation. All rights reserved.

C:\Users\skyMD>ping 209.183.226.152

Pinging 209.183.226.152 with 32 bytes of data:
Reply from 209.183.226.152: bytes=32 time=225ms TTL=47
Reply from 209.183.226.152: bytes=32 time=285ms TTL=47
Reply from 209.183.226.152: bytes=32 time=130ms TTL=47
Reply from 209.183.226.152: bytes=32 time=193ms TTL=47

Ping statistics for 209.183.226.152:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 130ms, Maximum = 285ms, Average = 208ms

C:\Users\skyMD>
 

youngs27

Thread Starter
Joined
Apr 29, 2012
Messages
22
NOT working now. just reset it. here's the disconnect info



Windows IP Configuration

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

Wireless LAN adapter Wireless Network Connection 3:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Microsoft Virtual WiFi Miniport Adapter #2
Physical Address. . . . . . . . . : 4C-EB-42-69-2E-91
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes

Wireless LAN adapter Wireless Network Connection 2:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Microsoft Virtual WiFi Miniport Adapter
Physical Address. . . . . . . . . : 4C-EB-42-69-2E-91
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes

Wireless LAN adapter Wireless Network Connection:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . : domain_not_set.invalid
Description . . . . . . . . . . . : Intel(R) Centrino(R) Wireless-N 1030
Physical Address. . . . . . . . . : 4C-EB-42-69-2E-90
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. . . . . . . . . : 08-2E-5F-89-90-D6
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes

Ethernet adapter Bluetooth Network Connection:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Bluetooth Device (Personal Area Network)
Physical Address. . . . . . . . . : 4C-EB-42-69-2E-94
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes

Tunnel adapter isatap.{94E3FFC7-3991-4F69-8B74-AE4C40B1AC0C}:

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

Tunnel adapter isatap.{9B02099D-FB61-4AC2-A7B6-83FB82938259}:

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

Tunnel adapter isatap.domain_not_set.invalid:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Microsoft ISATAP Adapter #3
Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes

Tunnel adapter Teredo Tunneling Pseudo-Interface:

Media State . . . . . . . . . . . : Media disconnected
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

Tunnel adapter isatap.{C654773B-89F3-46C4-8754-C9BD4F748A5C}:

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

Tunnel adapter isatap.{E793C378-C59F-443E-8A91-7DF805B367EA}:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Microsoft ISATAP Adapter #4
Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes




Microsoft Windows [Version 6.1.7601]
Copyright (c) 2009 Microsoft Corporation. All rights reserved.

C:\Windows\system32>ping 192.168.1.1

Pinging 192.168.1.1 with 32 bytes of data:
Reply from 192.168.1.103: Destination host unreachable.
Reply from 192.168.1.103: Destination host unreachable.
Reply from 192.168.1.103: Destination host unreachable.
Reply from 192.168.1.103: Destination host unreachable.

Ping statistics for 192.168.1.1:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),

C:\Windows\system32>

Microsoft Windows [Version 6.1.7601]
Copyright (c) 2009 Microsoft Corporation. All rights reserved.

C:\Windows\system32>ping www.google.com
Ping request could not find host www.google.com. Please check the name and try a
gain.

C:\Windows\system32>

Microsoft Windows [Version 6.1.7601]
Copyright (c) 2009 Microsoft Corporation. All rights reserved.

C:\Windows\system32>ping 209.183.226.152

Pinging 209.183.226.152 with 32 bytes of data:
Reply from 192.168.1.103: Destination host unreachable.
Reply from 192.168.1.103: Destination host unreachable.
Reply from 192.168.1.103: Destination host unreachable.
Reply from 192.168.1.103: Destination host unreachable.

Ping statistics for 209.183.226.152:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),

C:\Windows\system32>


i would like to say, that this is the 2nd time i've noticed that the router "cuts" me out at the same time 9PM.
3 other laptops were still in use while I was disconnected by the way.
After the unplug-replug, all laptops are using the router fine.
 

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etaf

Moderator
Joined
Oct 2, 2003
Messages
65,435
First Name
Wayne
based on those figures - you have lost access to the router
and looking at the xirrus screen shot - the signal is now shown in % rather than dBm - can you click on the settings - top of the screen and change the "display" dropdown to dBm
as its green you should have a signal strong enough

laptops cannot connect to the router.
did all the devices lose connection ?

what was the status of all the lights on the router and the modem
whats the make and model of the modem

if a device is connected to the router by cable - does that also lose connection?

there only appears to be one version of firmware for that router
http://homesupport.cisco.com/en-us/wireless/lbc/WRT400N
 

youngs27

Thread Starter
Joined
Apr 29, 2012
Messages
22
the modem is a
No, only my laptop lost connection.
and the dBm was about 62-70dBm

i may have to check tomorrow to see if it disconnects again at 9PM
i didn't check the device connect via hard wire, we do have one like that.
all status lights are normal on both modem and router, like i said, only my laptop lost connection. 3 OTHER laptops were still online. browsing etc.
 

etaf

Moderator
Joined
Oct 2, 2003
Messages
65,435
First Name
Wayne
make and model of the PC -
goto the manufacturers website and update the wireless driver
 

youngs27

Thread Starter
Joined
Apr 29, 2012
Messages
22
this is a new laptop.
hp dv7-6c60us
will see if there's an updated driver.
 
Joined
Apr 27, 2012
Messages
54
One other thing you can try with that router is hard coding the mac addr to it... i ran into a similar problem w/netgear
 

youngs27

Thread Starter
Joined
Apr 29, 2012
Messages
22
updated now. will check to see it still disconnects at 9 tonight or tomorrow night.
 

youngs27

Thread Starter
Joined
Apr 29, 2012
Messages
22
Just happened again. disconnected only my laptop, all other laptops still connect, even my blackberry is connected to the router. Hard unplug and plug in allows me back on. any thoughts?
 
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