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Windows 7: Wireless laptop connectivity


22 Jan 2010   #1

Windows 7 x64
 
 
Wireless laptop connectivity

Cant really find a great way to describe my problem by topic alone.. but i have some weird problems with my 2 laptops running windows 7 x86.

Now.. My setup is basically like this:

Wireless router connected to my adsl modem from one of the LAN ports on the router (Basically working as a AP only.. No nat/firewall++)

I have 3 desktop computers connected to the lan ports on my adsl modem.

All computers get DHCP adresses from the ADSL modem, and are all set up to the same workgroup. I have tried the "homegroup" thingy, but that is only working until next reboot (as the laptop will be unavailable from the desktop computers).

All 3 desktop computers can connect/share files between them. I can ping all 3 desktop computers from eachother. I can ping all 3 desktop computers from my laptops. All 5 computers can connect to the internet without problems.

However, i can not connect from any of the desktop computers TO the laptops. Ive set up filesharing on the laptops, and i cannot connect directly from a desktop computer (wired) to the laptop (wireless). Now.. this would be easy if it was ONLY that.. but here is the twist :

I can access/ping/whatever TO the wireless computer if i FIRST connect FROM the wireless TO the desktop!

Meaning.. To access a share on the laptop, i first have to connect FROM the laptop to a share on my desktop.. and THEN i can access the laptop from my desktop just fine.

The same goes for normal ping.. Ie. if i ping the laptop FROM the desktop, i get request timeout. If i ping the desktop FROM the laptop first, and THEN ping the laptop FROM the desktop, it works fine.

I have ofc disabled firewall, i have NOD32 antivirus installed witch have no known firewall or filtering. (I also have tried disabling this).

Now.. this could be a basic wireless configuration setting on the AP itself, but if i boot the wireless laptop on eg. a ubuntu livecd, i can ping both ways with no restrictions at all!

Any ideas? Both the laptops are of different manufacturer.. one is a 2 year old Compaq pressario v6502EO, and the other is a brand new Acer Aspire.

C

My System SpecsSystem Spec
.

22 Jan 2010   #2
aem

Windows 7 Ultimate 64Bit
 
 

Can you provide ipconfig /all detail of one desktop, and of one laptop?
My System SpecsSystem Spec
23 Jan 2010   #3

Windows 7 x64
 
 

Quote   Quote: Originally Posted by aem View Post
Can you provide ipconfig /all detail of one desktop, and of one laptop?
Here is the ipconfig /all from the desktop computer:
Code:
Windows IP Configuration

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

Ethernet adapter Local Area Connection:

   Connection-specific DNS Suffix  . : workgroup
   Description . . . . . . . . . . . : Realtek PCIe GBE Family Controller
   Physical Address. . . . . . . . . : 00-22-15-DE-93-43
   DHCP Enabled. . . . . . . . . . . : Yes
   Autoconfiguration Enabled . . . . : Yes
   Link-local IPv6 Address . . . . . : fe80::f459:3a28:2f63:aa8c%13(Preferred)
   IPv4 Address. . . . . . . . . . . : 192.168.0.30(Preferred)
   Subnet Mask . . . . . . . . . . . : 255.255.255.0
   Lease Obtained. . . . . . . . . . : 23. januar 2010 11:42:40
   Lease Expires . . . . . . . . . . : 1. mars 2146 18:16:32
   Default Gateway . . . . . . . . . : 192.168.0.1
   DHCP Server . . . . . . . . . . . : 192.168.0.1
   DHCPv6 IAID . . . . . . . . . . . : 184558101
   DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-12-22-13-8C-00-22-15-DE-93-43

   DNS Servers . . . . . . . . . . . : 192.168.0.1
                                       192.168.0.1
                                       8.8.8.8
   Primary WINS Server . . . . . . . : 192.168.0.1
   NetBIOS over Tcpip. . . . . . . . : Enabled

Tunnel adapter isatap.dexter:

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

Tunnel adapter Local Area Connection* 9:

   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:d5c7:a2d6:1823:3427:3f57:ffe1(Pref
erred)
   Link-local IPv6 Address . . . . . : fe80::1823:3427:3f57:ffe1%12(Preferred)
   Default Gateway . . . . . . . . . : ::
   NetBIOS over Tcpip. . . . . . . . : Disabled
And this is from one of the laptops :
Code:
Windows IP Configuration

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

Wireless LAN adapter Wireless Network Connection:

   Connection-specific DNS Suffix  . : workgroup
   Description . . . . . . . . . . . : Broadcom 802.11 Multiband Network Adapter

   Physical Address. . . . . . . . . : 00-1A-73-92-64-63
   DHCP Enabled. . . . . . . . . . . : Yes
   Autoconfiguration Enabled . . . . : Yes
   Link-local IPv6 Address . . . . . : fe80::80ef:9bde:ee44:fefd%12(Preferred)
   IPv4 Address. . . . . . . . . . . : 192.168.0.13(Preferred)
   Subnet Mask . . . . . . . . . . . : 255.255.255.0
   Lease Obtained. . . . . . . . . . : 23. januar 2010 11:48:04
   Lease Expires . . . . . . . . . . : 1. mars 2146 18:19:47
   Default Gateway . . . . . . . . . : 192.168.0.1
   DHCP Server . . . . . . . . . . . : 192.168.0.1
   DHCPv6 IAID . . . . . . . . . . . : 201333363
   DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-12-7E-5F-F0-00-1B-24-94-E6-AF

   DNS Servers . . . . . . . . . . . : 192.168.0.1
                                       192.168.0.1
                                       8.8.8.8
   Primary WINS Server . . . . . . . : 192.168.0.1
   NetBIOS over Tcpip. . . . . . . . : Enabled

Tunnel adapter isatap.dexter:

   Media State . . . . . . . . . . . : Media disconnected
   Connection-specific DNS Suffix  . : workgroup
   Description . . . . . . . . . . . : Microsoft ISATAP Adapter
   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. . . . . . . . . . . : 2001:0:5ef5:73bc:3062:2011:3f57:fff2(Pref
erred)
   Link-local IPv6 Address . . . . . : fe80::3062:2011:3f57:fff2%15(Preferred)
   Default Gateway . . . . . . . . . : ::
   NetBIOS over Tcpip. . . . . . . . : Disabled
I have ofc tested without ipv6 enabled with absolutely no effect on my problem. (Default boot from the ubuntu livecd also enables ipv6 on my adapter, so i would not believe this to be the direct culprit).

192.168.0.1 is the adress of my ADSL router.

C
My System SpecsSystem Spec
.


23 Jan 2010   #4
aem

Windows 7 Ultimate 64Bit
 
 

Comparing the desktop's LAN ipconfig and laptop's wireless LAN ipconfig, i can't see any reasons for all the machines to connect to to the other. If the other machine's ip details are consistent with these, then you got a perfect network. All able to surf the net compliments this.

As for,
Quote:
However, i can not connect from any of the desktop computers TO the laptops
Seems to be a share permission or credentials issue. How do you do your connection to the shares and what credentials are u using?
My System SpecsSystem Spec
23 Jan 2010   #5

Windows 7 x64
 
 

Quote   Quote: Originally Posted by aem View Post
Seems to be a share permission or credentials issue. How do you do your connection to the shares and what credentials are u using?
If it was "only" this, i would agree with you, but afaik there should be no credentials needed to do a normal ping.

And as i describe above, if i connect FROM "lap" TO "Game", it works with no problem, and i can connect FROM "Game" to "Lap". However, if i try to do it the other way around, i only get an error with the computer not found.

Code:
Pinging lap.workgroup [192.168.0.13] with 32 bytes of data:
Reply from 192.168.0.30: Destination host unreachable.
Reply from 192.168.0.30: Destination host unreachable.
Reply from 192.168.0.30: Destination host unreachable.
Reply from 192.168.0.30: Destination host unreachable.

Ping statistics for 192.168.0.13:
    Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Is what i get when i try to ping the laptop from the desktop.

After doing a ping Game from the laptop, this is the result:
Code:
Pinging lap.workgroup [192.168.0.13] with 32 bytes of data:
Reply from 192.168.0.13: bytes=32 time=1ms TTL=128
Reply from 192.168.0.13: bytes=32 time=2ms TTL=128
Reply from 192.168.0.13: bytes=32 time=1ms TTL=128
Reply from 192.168.0.13: bytes=32 time=1ms TTL=128

Ping statistics for 192.168.0.13:
    Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
    Minimum = 1ms, Maximum = 2ms, Average = 1ms
This last for.. well.. about 2-5 minutes if i do not continue any traffic between the two computers. Then its just like the wireless disappears. (Surfing/whatever works fine all the time, its the connection between the two computers that stops).

I am not able to ping the other laptop from "Lap" at all.. nor the other way around (since they are both on the wirless ap).

Fun times eh? :P
My System SpecsSystem Spec
23 Jan 2010   #6

Windows 7 x64
 
 

Now.. a small update of kinds..

I just ran the BT4 (BackTrack 4) livecd on my laptop, and i use wicd to connect the wireless adapter to my AP. Everything connects, and i can surf the net ++.. However, the problem is identical there as it was in windows 7!

This was not the case using the slightly older Ubuntu livecd..

I am.. totally at a loss other than ofc it might be the wireless ap fubaring something.. but why would the same thing work with identical hardware in a older Ubuntu livecd?

I am going to run a linux rev. in a VMware session using a USB wifi adapter and see if that can stay connected on the same AP.

C
My System SpecsSystem Spec
24 Jan 2010   #7

Windows 7 x64
 
 

Any more ideas around this?

So far i havent been able to figure out vmware settings for usb wireless adapter and whatnot.. So no go for me there..

Anyone?

C
My System SpecsSystem Spec
24 Jan 2010   #8

Windows 7 Ult, Windows 8.1 Pro,
 
 

Sounds like more A/V wierdness to me. Once you toss an A/V software into the mix all bets are off. The fact that you had problems with Homegroups also points to an A/V problem. Uninstall your A/V and try again. If all the machines are Windows 7 I would definately go with Homegroups as it works absolutely perfectly for me.
My System SpecsSystem Spec
25 Jan 2010   #9

Windows 7 x64
 
 

Quote   Quote: Originally Posted by chev65 View Post
Sounds like more A/V wierdness to me. Once you toss an A/V software into the mix all bets are off. The fact that you had problems with Homegroups also points to an A/V problem. Uninstall your A/V and try again. If all the machines are Windows 7 I would definately go with Homegroups as it works absolutely perfectly for me.
A/V? Sorry for being a total noob here.. but what is A/V?

C
My System SpecsSystem Spec
25 Jan 2010   #10

Windows 7 Ult, Windows 8.1 Pro,
 
 

Anti Virus. You should always get your network up and running with sharing tested before you install any type of Anti Virus.
My System SpecsSystem Spec
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