I recently set up a wireless network in my home. I have a desktop computer hooked up through an ethernet cable on a microsoft router, and I have a notebook conected with a wireless adapter. Both computers can acces the internet over the network, but the computers will not detect each other on the network (for file sharing). I made sure that both computers are in the same workgroup and that File Sharing is enabled. Does anyone know how to get the computers to detect each other over the wireless for file shareing.

I don't have much information about this .. but you can google your problem .. Following is the abstract of one article I was reading some days back about the same problem ..



Create a wireless home file sharing network

Introduction

A DHCP capable wireless router can be used as a wireless media 'server'. Each PC can see each other's sharable folders. Music, video and pictures can be streamed from the main PC via the router to any authorized PC/laptop etc in the house.
[Edit section] Steps

For a full-blown file sharing network with easy access straight from boot up, the following five steps are required:

1. Workgroups
2. Sharing Folders
3. Configuring Firewalls
4. Mapping Network Drives
5. Customized O/S's

[Edit section] 1. Workgroups

Configure all PC's to belong to the same workgroup. This streamlines access issues.

* Under {Control Panel / System / Computer Name / Change} set the workgroup to a useful name like HOME_NETWORK.

[Edit section] 2. Share Folders

To share folders you need to access the folder properties and do two things.

* Under the Sharing tab click {SHARE THIS FOLDER}
* Under the Sharing tab also click {PERMISSIONS} and choose the permissions level. This is only necessary if you want remote admin privileges.

You do not need to edit the properties of sub-folders, the root-folder is sufficient. For security, only share a limited number of folders and definitely no system ones.
[Edit section] 3. Configure Firewalls

Each respective firewall must allow the other PC access to the shared folders. There are two ways:

* Ensure that the Router DHCP setting is {AUTO}. Configure each firewall {TRUSTED NETWORKS}, or equivalent, to the private range issue eg 192.168.1.2 - 192.168.1.254
* Ensure that the Router DHCP setting is {MANUAL}. AT each PC, under properties for {Wireless Network Connections}, click the properties for {INTERNET PROTOCOL TCP/IP}. Enter a unique IP eg 192.168.1.X where X= 2 to 254

Configure each firewall {TRUSTED NETWORKS}, or equivalent, to allow access inbound/outbound to the other PC unique IP address. This is slightly more secure from casual poking especially if X is midrange.

Important: For security reasons, ensure that you are using maximum WPA encryption on your router.
[Edit section] 4. Mapping Network Drives

It is always handy to map a drive letter to the shared folder on another PC.

* Open Windows Explorer
* Under {MY NETWORK PLACES / ENTIRE NETWORK / MICROSOFT WINDOWS NETWORK} click the workgroup eg HOME_NETWORK and select the PC of interest and click the shared folder required.
* Map that folder to a drive letter via TOOLS / MAP NETWORK DRIVE
* If you wish you may tick the choice for {Reconnect on Logon}

[Edit section] 5. Customized O/S's

If you have {FILE & PRINTER SERVICES} and {CLIENT FOR MICROSOFT NETWORKS} installed, then ignore the following:

Rarely, the advanced user may have deliberately installed a custom streamlined version of windows, without some services that would have merely bloated the OS.

* Under {MY NETWORK PLACES} click the properties for {Wireless Network Connections}.
* Select {FILE AND PRINTER SHARING FOR MICROSOFT NETWORKS} and click {INSTALL}.
* Under {MY NETWORK PLACES} click the properties for {Wireless Network Connections}.
* Tick the box for {FILE AND PRINTER SHARING FOR MICROSOFT NETWORKS} and click {INSTALL}.

Do similarly with {CLIENT FOR MICROSOFT NETWORKS}
[Edit section] When Qos are usefull

QoS is useless if you don't have programs that use it. 99.9% of the usual software doesn't use it. Practically - if you don't know you have to install it you don't need it.

Do you have any Third Party Firewall Installed on ur pc?

Correct question Rahul ! if any firewall enabled in Laptop or PC, it may cause of this issue, if all other settings are correct as Hemant described, check with Windows and other third party firewalls. add the ports and computers are connected to the network in firewall exceptional list. This will resolve the issue.