kl7919,

Since you said you have to be in the same room as the router, I suspect tghe antenna wire(s) may have come loose. Try the INSTRUCTIONS HERE <ADMIN NOTE: Broken link has been removed from this post by Dell> to see if they're attached.

Rick

hi

The laptop is Dell Inspiron N5110 and can't find any wire that come loose.

thank

kl7919,

Can you run an ipconfig /all log and post it back here.

Rick

kl7919,

Try...

Control Panel\All Control Panel Items\Power Options\Create a Power Plan

Select High performance.

Start, control panel, device manager. Click on Network and then right click on your wireless adapter, left click properties, power management. Uncheck the box, allow computer to turn off this device to save power.

While in the device manager, click on advanced. Look and see if this adapter has antenna diversity. If it does, try changing it from Auto to Aux. Make sure on Maximum power and can you tell me what other setting are listed under advanced.

Rick

Microsoft Windows [Version 6.1.7600]

Copyright (c) 2009 Microsoft Corporation.  All rights reserved.

C:\Users\Janet Chew>ipconfig/all

Windows IP Configuration

  Host Name . . . . . . . . . . . . : JanetChew

  Primary Dns Suffix  . . . . . . . :

  Node Type . . . . . . . . . . . . : Hybrid

  IP Routing Enabled. . . . . . . . : No

  WINS Proxy Enabled. . . . . . . . : No

Ethernet adapter Bluetooth Network Connection:

  Media State . . . . . . . . . . . : Media disconnected

  Connection-specific DNS Suffix  . :

  Description . . . . . . . . . . . : Bluetooth Device (Personal Area Network)

  Physical Address. . . . . . . . . : 88-9F-FA-0D-2A-B0

  DHCP Enabled. . . . . . . . . . . : Yes

  Autoconfiguration Enabled . . . . : Yes

Wireless LAN adapter Wireless Network Connection:

  Connection-specific DNS Suffix  . :

  Description . . . . . . . . . . . : Dell Wireless 1702 802.11b/g/n

  Physical Address. . . . . . . . . : 88-9F-FA-0D-2A-AF

  DHCP Enabled. . . . . . . . . . . : Yes

  Autoconfiguration Enabled . . . . : Yes

  Link-local IPv6 Address . . . . . : fe80::89e4:7811:ae25:d10b%13(Preferred)

  IPv4 Address. . . . . . . . . . . : 192.168.1.126(Preferred)

  Subnet Mask . . . . . . . . . . . : 255.255.255.0

  Lease Obtained. . . . . . . . . . : Monday, 11 June, 2012 7:08:38 AM

  Lease Expires . . . . . . . . . . : Monday, 11 June, 2012 8:08:37 AM

  Default Gateway . . . . . . . . . : 192.168.1.254

  DHCP Server . . . . . . . . . . . : 192.168.1.254

  DHCPv6 IAID . . . . . . . . . . . : 310943738

  DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-16-DD-40-9C-24-B6-FD-1E-FA-E6

  DNS Servers . . . . . . . . . . . : 192.168.1.254

  NetBIOS over Tcpip. . . . . . . . : Enabled

Ethernet adapter Local Area Connection:

  Media State . . . . . . . . . . . : Media disconnected

  Connection-specific DNS Suffix  . :

  Description . . . . . . . . . . . : Realtek PCIe FE Family Controller

  Physical Address. . . . . . . . . : 24-B6-FD-1E-FA-E6

  DHCP Enabled. . . . . . . . . . . : Yes

  Autoconfiguration Enabled . . . . : Yes

Tunnel adapter isatap.{456C732A-1E79-416A-9F8C-B31B283EFE2B}:

  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 isatap.{17AEC392-25FD-4DF9-B311-2B2F5341E8FD}:

  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 isatap.{3E5926F0-002A-43DF-B786-938987B07B41}:

  Media State . . . . . . . . . . . : Media disconnected

  Connection-specific DNS Suffix  . :

  Description . . . . . . . . . . . : Microsoft ISATAP Adapter #3

  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:307d:3906:acb8:93b0(Pref

erred)

  Link-local IPv6 Address . . . . . : fe80::307d:3906:acb8:93b0%17(Preferred)

  Default Gateway . . . . . . . . . : ::

  NetBIOS over Tcpip. . . . . . . . : Disabled

C:\Users\Janet Chew>

Does yr laptop working good with other wifi?

Already done that last week still the same.

kl7919,

I would suspect that the antenna wire may have come loose. To check it, CLICK HERE. 

Rick