Network slowing down internet connection

  bbenj 15:07 15 Mar 10
Locked

Hi,

I have a ZyXel P600 router. My PC, which is running Vista is connected to this as is a Polycom VoIP telephone. I also have a HP laptop, running Windows 7, which connects to the router via wifi. The laptop is new as of 3 weeks ago. I previously had a dell laptop, running XP, connecting to the router via wifi. My problem is this: Since I got the new laptop (old one died due to coffee spillage!) I have now shared my Printer (connected to the desktop PC) and some folders on my desktop PC with the laptop. Ever since I have done this, it is making my internet connection very slow when both the PC and Laptop are in use. Could this be due to the sharing of folders and a printer, which seem to be the only thing I have changed in this system? Is it possible I have set this up incorrectly, as I wouldn't imagine that connecting to some folders and a printer is meant to make the connection this slow? When I shut the laptop down, everything is OK, it is literally when both are in use. Hope I've explained the problem OK, but do let me know if I've missed out any vital info.

Cheers

  mgmcc 16:08 15 Mar 10

With both computers running, go into the Vista PC's Task Manager (Ctrl+Shift+Esc), select the Networking tab and see what percentage the Network Utilisation is using. It should be a very small figure unless there is a problem which is hogging the resources. Do the same with the Windows 7 Laptop.

While accessing folders in a networked PC the percentage utilisation will rise in one or both machines, but should then fall back to almost zero when again idle.

  bbenj 16:22 15 Mar 10

Hi, thanks for your reply. When accessing the folders over the network the usage jumps to about 6%, but yes it is normally zero when idle.

  mgmcc 12:07 16 Mar 10

I can't think of any other obvious reason for the problem. What is the situation though if only the Laptop is running and you're trying to access the internet with that?

  bbenj 09:35 18 Mar 10

Hi,

With the laptop running on it's own it's still not great. The PC running on it's own is perfectly fine, but the laptop on it's own is somewhere in between that and how bad it is with both running. It is also causing problems with my VoIP phone, which now cuts out for about 2 seconds every minute when I'm using it with both the PC and laptop in use?

  mgmcc 20:20 18 Mar 10

Open a Command Prompt window ("Start > Run", type CMD and click OK) then, at the prompt, type...

ipconfig /all

...and press Enter. This will show details of all network adapters installed in the PC. Right click in the Command Prompt window, "Select All" and press Enter to copy the details to the clipboard. Paste the details into a forum reply here. It might just give an indication of a problem.

  bbenj 23:16 18 Mar 10

Hi, thanks for your help, I've done this from the PC, should I do it from the laptop as well? Anyway, below is the PC ipconfig.




Microsoft Windows [Version 6.0.6002]
Copyright (c) 2006 Microsoft Corporation. All rights reserved.

C:\Users\Bryan>ipconfig /all

Windows IP Configuration

Host Name . . . . . . . . . . . . : Bryan-PC
Primary Dns Suffix . . . . . . . :
Node Type . . . . . . . . . . . . : Hybrid
IP Routing Enabled. . . . . . . . : No
WINS Proxy Enabled. . . . . . . . : No
DNS Suffix Search List. . . . . . : tiscali.co.uk

Ethernet adapter Local Area Connection:

Connection-specific DNS Suffix . : tiscali.co.uk
Description . . . . . . . . . . . : Marvell Yukon 88E8056 PCI-E Gigabit Ether
net Controller
Physical Address. . . . . . . . . : 00-19-21-E7-A2-6B
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
Link-local IPv6 Address . . . . . : fe80::9014:d519:7c74:c9b0%8(Preferred)
IPv4 Address. . . . . . . . . . . : 192.168.1.33(Preferred)
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Lease Obtained. . . . . . . . . . : 18 March 2010 16:47:10
Lease Expires . . . . . . . . . . : 21 March 2010 16:47:10
Default Gateway . . . . . . . . . : 192.168.1.1
DHCP Server . . . . . . . . . . . : 192.168.1.1
DHCPv6 IAID . . . . . . . . . . . : 201333025
DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-11-06-DB-4B-00-19-21-E7-A2-6B

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

Tunnel adapter Local Area Connection* 6:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . : tiscali.co.uk
Description . . . . . . . . . . . : isatap.tiscali.co.uk
Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes

Tunnel adapter Local Area Connection* 7:

Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Teredo Tunneling Pseudo-Interface
Physical Address. . . . . . . . . : 02-00-54-55-4E-01
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes
IPv6 Address. . . . . . . . . . . : 2001:0:5ef5:73ba:2081:34c2:3f57:fede(Pref
erred)
Link-local IPv6 Address . . . . . : fe80::2081:34c2:3f57:fede%9(Preferred)
Default Gateway . . . . . . . . . : ::
NetBIOS over Tcpip. . . . . . . . : Disabled

C:\Users\Bryan>

  mgmcc 08:12 19 Mar 10

Sorry, I used "PC" as a generic term for "computer" - it is the Laptop that is causing the problem and its IPCONFIG /ALL that we need to see.

  bbenj 12:31 19 Mar 10

Hi, no probs, the laptop IPCONFIG is below..


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

C:\Users\Benjafields>ipconfig /all

Windows IP Configuration

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

Wireless LAN adapter Wireless Network Connection:

Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Atheros AR9285 802.11b/g/n WiFi Adapter
Physical Address. . . . . . . . . : 90-4C-E5-B0-69-B4
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
Link-local IPv6 Address . . . . . : fe80::58f0:c406:ef2b:749a%13(Preferred)
IPv4 Address. . . . . . . . . . . : 192.168.1.36(Preferred)
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Lease Obtained. . . . . . . . . . : 18 March 2010 13:11:52
Lease Expires . . . . . . . . . . : 22 March 2010 08:30:40
Default Gateway . . . . . . . . . : 192.168.1.1
DHCP Server . . . . . . . . . . . : 192.168.1.1
DHCPv6 IAID . . . . . . . . . . . : 328223973
DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-12-84-52-4D-00-26-9E-DC-8F-48

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

Ethernet adapter Local Area Connection:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Realtek RTL8102E/RTL8103E Family PCI-E Fa
st Ethernet NIC (NDIS 6.20)
Physical Address. . . . . . . . . : 00-26-9E-DC-8F-48
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes

Tunnel adapter isatap.{CC80E649-6B1D-4260-A6E2-0E41AD5CB07E}:

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 Local Area Connection* 11:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Microsoft 6to4 Adapter
Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes

Tunnel adapter isatap.{8A931E05-D6F1-4D53-ACD1-E68FEC5D412C}:

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 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. . . . . . . . . . . : 2001:0:5ef5:73ba:cad:d8bf:a790:fcaf(Prefe
rred)
Link-local IPv6 Address . . . . . : fe80::cad:d8bf:a790:fcaf%14(Preferred)
Default Gateway . . . . . . . . . : ::
NetBIOS over Tcpip. . . . . . . . : Disabled

  mgmcc 15:31 19 Mar 10

There is nothing obviously wrong in the Laptop's IPCONFIG details. However, I would suggest that you disable TCP/IPv6 in both Vista and 7. This is the next generation of TCP/IP necessary because the number of available TCP/IPv4 addresses is running out. At the moment it isn't in use *UNLESS* you are connecting two Windows 7 computers in a Homegroup.

Try disabling the Laptop's Wireless adapter, connect it to the router by ethernet cable instead and see if there is still a slow speed issue.

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