Hi alexsh16,

Dell Vostro 3560 comes with following Wireless cards:

• Dell Wireless WLAN 1703 Half Mini-Card + BlueTooth 4.0
• Dell Wireless WLAN 1704 Half Mini-Card + BlueTooth 4.0
• Dell Wireless WLAN 1901 Half Mini-Card + BlueTooth 4.0
• Intel Centrino Wireless-N 2230 Half Mini-Card + BlueTooth 4.0

Please share the screenshot of the Device Manager with Network Adapters expanded for me to identify which wireless card is installed on your system. Here are the steps:

• Press the key combination Windows Logo key + R key to open Run dialog box.
• Type in devmgmt.msc and click OK.
• The Device Manager windows will appear.
• Click on the sign next to Network Adapters and expand it.

Also, you may refer to the link http://dell.to/ZB3Wdk for troubleshooting steps on resolving connection issues on your Wi-Fi network for Windows 8.

Please reply if you have any questions.

Here is the screenshot,hope you can solve it,i will really appric. it.

indeed,i performed the steps above,but without significant change.

any new idea how to solve this issue please ?

Hi alexsh16,

Thank you for sharing the information. Also, please confirm if you have performed the steps mentioned on the link that I shared with you in my initial reply.

Awaiting your response.

Hi Alexsh16,

Please update the wireless drivers from the link http://dell.to/11vrVoB. Also, update the BIOS of the system from the link http://dell.to/14i9ghO. Once the system restarts after the BIOS update, check functionality.

Note: Make sure the ac adapter is connected and the battery is charged 10% or above to update the BIOS. Also, disconnect all the external peripherals before updating the BIOS. All the programs should be closed and documents saved.

Hope this helps. Please reply if you have any questions.

Thanks a lot.

I updated successfully the BIOS driver as well as the DW1704_W7_A03_setup-MKX3F_ZPE driver.

but couldn't  update the Network_Driver_MKX3F_WN_6.20.55.58_A03 drive. the error is :

Hi Alexsh16,

Apologies that the link didn't work. Please try and update the wireless drivers from the link http://dell.to/17lzqa8. Restart the system and check functionality after that.

Please reply with the results.

Hey,

installation completed successfully,but unfortuntely WiFi disconecting after a while (Limit access) and only restart of my laptop brings back the connection.

imreally dissapointed of that problem and desperate from it.

shell i do ?

what shell i do ?

Hi Alexsh16,

Thank you for sharing the results. Please make the following changes to wireless card properties and check if it makes any difference:

• Open Device Manager.
• Expand Network Adapters, right click the wireless card and choose Properties
• Make the following changes:
  
  
  • Change 802.11h+d to Strict 11h
  • Change Afterburner to Enabled
  • Change Antenna Diversity to Main
  • Change AP Compatibility Mode to Broader Compatibility
  • Change BSS Mode to 802.11g Mode
  • Change BT-AMP to Enabled
  • Change Fragmentation Threshold to 2300
  • Change Minimum Power Consumption to Disabled
  • Change PLCP Header to Long
  • Change Roam Tendency to Aggressive
  • Change Roaming Decision to Optimize Distance
  • Change RTS Threshold to 2300
    
    
• Click the Power Management tab
  
  
  • Uncheck Allow the computer to turn off this device to save power
    
    
• Open Power Options
  
  
  • Click Change plan settings for the selected power profile
  • Click Change advanced power settings
  • Under Wireless Adapter Settings, click Power Saving Mode and change the settings to Maximum Performance

Hope this helps. Please reply with the findings.

Hi Alexsh16,

Thank you for your cooperation and patience. Do keep me posted with the results, I'll be happy to help.

Hey dear friend,

I really appreciate your effort to solve and help me.

hope that will solve my annoying problem.

i will replay back in 48 hours top,i would like to examine if the problem have been solved

thanks once again.

Hey back,

i might believe that I'm hopeless case.

my Wifi still disconnecting once a while (after few hours around 5-7 hours instead 1-2 hours before)

i would like ask kindly if can you help me please to restore to the default settings i guess that will help and if not i will do the process once again.

i will give it last chance,for one more day because It's disconnects and writes me LIMITED ACCESS and the only way i can reconnect by doing restart to my laptop,that's annoying me to restart my laptop.

i spoke with my ISP and they told me the problem is with the router or either the laptop.

and router reinstalled twice i guess the problem is only with my new DELL VOSTRO.

i mean to restore the wireless card setting to the factory default.