Usb ports (HP Pavilion dv2000 Laptop) unable to retreive data

SOURCE: 3 vlans, data,1; data 2,;voip,5. Ports carry voice

Here's what you need to do:

First, be sure to assign an ip address(in the proper subnet) to each VLAN.

Second, use the ip helper-address command in the context of each VLAN, the address used should be the address of the DHCP server

Third, Add a scope for each additional VLAN on the DHCP server.

The switch will route the DHCP request to the proper server based on the ip helper-address command parameter and based on the ip address of the VLAN that is passed tot he server, a DHCP address in the proper subnet is automatically configured.

Here is a sample:

ProCurve Switch 3500yl-24G-PWR# configure
ProCurve Switch 3500yl-24G-PWR(config)# vlan 33
ProCurve Switch 3500yl-24G-PWR (vlan-33)#ip address 192.168.33.254/24
ProCurve Switch 3500yl-24G-PWR (vlan-33)# ip helper-address 10.1.2.250

isaac johny

• 796 Answers
• Posted on Feb 28, 2008

SOURCE: Hp pavilion dv1000. All 3 USB ports not recognising any device

go to device manager and from there try updating the usb drive from there

SOURCE: New laptop... HP Pavilion dv2000 DVD drive does not recognize any disk

i hope the size of file not larger then then the DVD/CD, ( i think you already know about that)
if you burn multiple format of file, make a folder and put all the file in the folder, so burn the folder,

especially when you put a zip folder, sometimes it will cause error,

Divya K

• 71 Answers
• Posted on Jul 03, 2009

SOURCE: USB ports on my laptop not connecting

You can try uninstalling USB root hubs from device manger and restart the unit and check,

SOURCE: usb ports not working

Check your hardware from CONTROL PANEL / SYSTEM / HARDWARE.

Also check HP's support section on the web for any updated drivers especially for your laptops motherboard / bios

Any exclamation marks by hardware need fixing before you investigate any further
Once you have done that try some of the common fixes below.

I devised these simple steps that tend to remedy quite a few issues with most USB portable / external hard drives and devices (though not always)

A few things to check but assumes USB and Windows for other interfaces / operating systems similar steps may be adapted to suit.

1. Ensure it is connected directly to the computer to a USB 2.0 port not a USB 1.0 port as this can have effects on performance and reliability

2. Use only the cables that came with it NOT one that fits that may have been lying around or is longer. Not all USB cables are equal even though they should be)

3. Do not connect through an external USB HUB unless that hub is USB 2.0 AND has its own power supply.

4. Use ONLY the power supply that came with it if it has an external power supply Don’t use any other unless you know it has both the same voltage and current rating e.g. 12V 500mA anything rated below that would not work properly.

5. Always use the same port for connecting your devices. Some devices do not like being switched about. If switched they may want to install software / drivers again. This can be especialy true if you move a HUB to another port