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Wireless access point.

Last response: in Networking
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December 4, 2010 3:20:12 PM

Hi. I have network that looks like this [Cable Modem] -> [Router] -> [Switch] -> Computers.
To the switch I also have connected a wireless access point thats in a house 40m across the yard with a 50m long cable. To that access point there is 2 computers connected via wireless LAN. Those two computers keeps getting disconnected from the internet and I can't see the computers or the accesspoint in my network map. Just before this happens the speed for all users in the whole nework drops alot and then the wireless section drops its connection totaly and the speed for all computers directly connected to the switch gets back full speed.

Anyone have any idea of what this problem can be?

And also a question: Can a 60-70m long or damaged cable slow down or corrupt traffic on a whole network, cuz one of the computers that are connected directly to my switch are in a house about 50-60 meters away, the cable is in the ground and i dont know how it looks. And sometimes when I disconnect that cable from the switch all other problems seem to go away, but that could be a coinsidence.

Thanks


More about : wireless access point

December 5, 2010 8:39:26 AM

Hi. I have windows 7 and all other computers also run windows 7. I am fairly certain it is not an OS problem. It could be a software or computer hardware related problem but I cannot see what that would be. At the moment, as soon as I connect the 50-60m long cable to the network the connection dies for the computers connected to the access point. But my computer and the others that are connected directly to the switch in this house (There is 3 houses total here atm, the switch and router and modem is in the center house and so am I) still have connection and rarely any problems.

I have some point questions that would help me a great deal since I am troubleshooting the network as we speak.

1. Can a to long or damaged cable slow down speeds for the entire network?

2. Should I always have an access point or a switch at the end of a long cable?

3. I have more than one DHCP client available (Router and Access point), but I should only use the one closest to the modem, correct?

4. I've heard that 107m is ethernet standard length of a cable, after that there is no guarantee that it works. Can, say 2 x 60m cables on the same network f*k it all up?

:p  Sorry if it's hard to understand what I mean, im not good at explaining things. But my problems are making me insane :p 

Thanks a lot for trying.

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December 5, 2010 3:23:02 PM

Okay. I will do that as soon as I can.

Thanks
December 5, 2010 4:52:35 PM

Ok. Here is the one from one of the laptops connected to the AP:

C: \ Users \ Bjorn> ipconfig / all

IP Configuration for Windows

Host Name. . . . . . . . . . : Bear-computer
Primary DNS Suffix. . . . . . . . :
Node type. . . . . . . . . . . . . . : Hybrid
IP Routing Enabled. . . . . . : No
WINS Proxy Enabled. . . . . . . : No

Wireless Connection Wireless Network Connection:

Connection-specific DNS Suffix. :
Description. . . . . . . . . . . : Intel (R) Wireless WiFi Link 4965AGN
Physical Address. . . . . . . . . . : 00-1D-E0-A7-D3-99
DHCP enabled. . . . . . . . . . : Yes
Autoconfiguration Enabled. . . : Yes
Link-local IPv6 Address. . . . . . : Fe80:: 38f2: 1192: b138: 634a% 17 (Standard)
IPv4 address. . . . . . . . . . . : 192.168.0.191 (default)
Subnet Mask. . . . . . . . . . . . . : 255.255.255.0
The loan was obtained. . . . . . . . . . : December 5, 2010 19:14:07
The loan ends. . . . . . . . . . . : December 6, 2010 19:14:07
Default Gateway. . . . . . . . . : 192.168.0.1
DHCP server. . . . . . . . . . . : 192.168.0.1
IAID for DHCPv6. . . . . . . . . : 218111456
DUID in DHCPv6 client. . . . . . : 00-01-00-01-10-95-71-6D-00-14-0B-45-1C-B2

DNS servers. . . . . . . . . . . : 192.168.0.1
NetBIOS over TCP / IP. . . . . . . : Enabled

Ethernet connection, Bluetooth Network Connection:

Permits. . . . . . . . . . . . : Disconnected
Connection-specific DNS Suffix. :
Description. . . . . . . . . . . : Bluetooth Device (Personal Area Network)
Physical Address. . . . . . . . . . : 00-10-60-D1-3A-D9
DHCP enabled. . . . . . . . . . : Yes
Autoconfiguration Enabled. . . : Yes

Ethernet connectivity Local Area Connection:

Permits. . . . . . . . . . . . : Disconnected
Connection-specific DNS Suffix. :
Description. . . . . . . . . . . : Generic Marvell Yukon 88E8055 PCI-E Gigab
IT Ethernet Controller
Physical Address. . . . . . . . . . : 00-14-0B-45-1C-B2
DHCP enabled. . . . . . . . . . : Yes
Autoconfiguration Enabled. . . : Yes

Tunnel adapter Local Area Connection * 6:

Permits. . . . . . . . . . . . : Disconnected
Connection-specific DNS Suffix. :
Description. . . . . . . . . . . : Isatap. {2D25E12F-8A04-4274-A151-313B6C0A1
4dB}
Physical Address. . . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP enabled. . . . . . . . . . : No
Autoconfiguration Enabled. . . : Yes

Tunnel adapter Local Area Connection * 7:

Permits. . . . . . . . . . . . : Disconnected
Connection-specific DNS Suffix. :
Description. . . . . . . . . . . : Teredo Tunneling Pseudo-Interface
Physical Address. . . . . . . . . . : 02-00-54-55-4E-01
DHCP enabled. . . . . . . . . . : No
Autoconfiguration Enabled. . . : Yes

Tunnel adapter Local Area Connection * 12:

Permits. . . . . . . . . . . . : 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 Local Area Connection *:

Permits. . . . . . . . . . . . : Disconnected
Connection-specific DNS Suffix. :
Description. . . . . . . . . . . : Isatap. {7D91A33F-F6E9-4191-8A9B-EFA5475EE
631}
Physical Address. . . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP enabled. . . . . . . . . . : No
Autoconfiguration Enabled. . . : Yes

Tunnel adapter Local Area Connection * 2:

Permits. . . . . . . . . . . . : Disconnected
Connection-specific DNS Suffix. :
Description. . . . . . . . . . . : Isatap.kava.lt
Physical Address. . . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP enabled. . . . . . . . . . : No
Autoconfiguration Enabled. . . : Yes

C: \ Users \ Bjorn>


And here is the one from one of the PC's connected to the switch:



Microsoft Windows [Version 6.1.7600]
Copyright (c) 2009 Microsoft Corporation. All rights reserved.

C:\Users\Sephias>ipconfig /all

Windows IP Configuration

Host Name . . . . . . . . . . . . : RĂ„SERBAJS2010
Primary Dns Suffix . . . . . . . :
Node Type . . . . . . . . . . . . : Hybrid
IP Routing Enabled. . . . . . . . : No
WINS Proxy Enabled. . . . . . . . : No

Ethernet adapter Local Area Connection:

Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Realtek RTL8168D/8111D Family PCI-E Gigab
it Ethernet NIC (NDIS 6.20)
Physical Address. . . . . . . . . : 90-E6-BA-6E-04-D0
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
Link-local IPv6 Address . . . . . : fe80::78f8:1c9c:5d09:8942%11(Preferred)
IPv4 Address. . . . . . . . . . . : 192.168.0.193(Preferred)
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Lease Obtained. . . . . . . . . . : den 5 december 2010 10:46:35
Lease Expires . . . . . . . . . . : den 6 december 2010 10:46:35
Default Gateway . . . . . . . . . : 192.168.0.1
DHCP Server . . . . . . . . . . . : 192.168.0.1
DNS Servers . . . . . . . . . . . : 192.168.0.1
NetBIOS over Tcpip. . . . . . . . : Enabled

Ethernet adapter Hamachi:

Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Hamachi Network Interface
Physical Address. . . . . . . . . : 00-23-C3-4B-8F-FA
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
IPv4 Address. . . . . . . . . . . : 5.75.143.250(Preferred)
Subnet Mask . . . . . . . . . . . : 255.0.0.0
Lease Obtained. . . . . . . . . . : den 5 december 2010 10:46:35
Lease Expires . . . . . . . . . . : den 5 december 2011 10:48:41
Default Gateway . . . . . . . . . : 5.0.0.1
DHCP Server . . . . . . . . . . . : 5.0.0.1
NetBIOS over Tcpip. . . . . . . . : Enabled

Tunnel adapter isatap.{C34DD0F6-ECFA-447A-906B-FBB6A702998D}:

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 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. . . . . . . . . . . : 2001:0:5ef5:79fd:1895:D 16:a51c:2cd6(Prefe
rred)
Link-local IPv6 Address . . . . . : fe80::1895:D 16:a51c:2cd6%13(Preferred)
Default Gateway . . . . . . . . . :
NetBIOS over Tcpip. . . . . . . . : Disabled

Tunnel adapter 6TO4 Adapter:

Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Microsoft 6to4 Adapter
Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes
IPv6 Address. . . . . . . . . . . : 2002:54b:8ffa::54b:8ffa(Preferred)
Default Gateway . . . . . . . . . : 2002:c058:6301::c058:6301
NetBIOS over Tcpip. . . . . . . . : Disabled

Tunnel adapter isatap.{5B58BC4D-6ECF-46B0-8164-FD5B3D0CEE97}:

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

C:\Users\Sephias>

Hope it helps. :) 


December 5, 2010 7:36:51 PM

But I have DHCP enabled on the router closest to the modem, isn't that the first router? And there is only one router, one switch and one Wireless access point
!