Wireless speed on Lenovo Z580 slow - Lenovo IdeaPad Z500 Laptop Computer - 593126U - Dark Chocolate

you will get it on lenovo support site or you can call the customer care

Reinstall windows os

The lenovo automatic updates only work if you did not uninstall the Thinkvantage tools that came preloaded. If you did remove them, then you need to go to the Lenovo website to download and reinstall the Lenovo software.

The Ideapad z580 series takes DDR3 SODIMMs, either PC3-8500 (1066 MHz) or PC3-10600 (1333 MHZ)
It can go to 4 GB (2 x 2 GB SODIMMs) in 32 bit or 8 GB (2 x 4GB SODIMMs) with a 64 bit OS. Here is the Kingston page, although they have discontinued these models Memory Discontinued Models

First, try turning on the camera by pressing and holding Fn (second key from the left on the bottom row) and then press Esc (first key on the left of the top row of keys). Release both keys. Many laptops ship without the drivers for the web cam. Go to http://mobilesupport.lenovo.com/us/en/products/laptops-and-netbooks/ideapad-z-series-laptops/ideapad-z580 and download the appropriate driver for your OS.

I hope this helps.

Cindy Wells

Reinstall the WiFi driver:
Lenovo Support Drivers Software US

Alternatively, you can Enable/Disable WiFi by opening:
Control Panel>Network and Internet>Network and Sharing Center>Change Adapter Settings

You should see your WiFi connection listed. Right Click to Enable or Disable.

Probably the signal is too low. Click on wifi connection, it should have 3+ lines, if not, try to change place for router. Also, you can try on another wifi network to check if laptop is okay.

Follow these steps to fix Laptop freezes problem::

• Remove unused programs
  
• Fix registry Errors
• Install and run antispyware software
  
• Free up wasted space with Disk Cleanup tool
  
• Defragment your hard disk drive
  
• Stop unwanted services

If problem still persists then use system utility tool like Reginout to fix this problem instantly.

To connect your computer to a wireless router, you click the Refresh network list, then Choose your wireless network and then click Connect to your secured Wireless Network, it will asks for a Network Key before allowing you to connect into your wireless network. This Network Key is either the WEP, or WPA or WPA2 Encryption key that is configured in the Wireless settings in the Router. The Passphrase is an alternate way to setup the Encryption key.
When you are requested for a Network Key, you can just enter the Passphrase or WPA or WPA2 key that was used to configure the Encryption key in the wireless router. http://www.fixya.com/support/r5270415-network_password_network_address For information on securing your wireless network, configuring the wireless router and configuring the wireless card in the laptop/computer, please click on this link and follow my instructions :- http://www.fixya.com/support/r3559128-wireless_router_security

The lenovo line of laptops are in my view one of the better choices to buy, since I never had the pleasure of owning the z580 I can't comment on that particular model.