Home network I have three PC's at my house. Compaq, Gateway, Dell. The Dell is oldest. Recently set up wireless network. All PC's can see others EXCEPT Dell. It's invisible to the others and the Dell can't see the others either. Strange to me since the others work good on the network. Any ideas? The Dell is the one with the router on it; could that have anything to do with it? Don't see why. Thanks, folks.

Could be a dud wireless adaptor - a usb WLAN adaptor is a cheap and convenient method of testing or overcoming problems.

"If your PC has not been connected to a broadband modem or other network device, you will need to
perform the PC configuration procedure below. Remember to restart each PC when finished. If your
PC has been connected to a broadband modem or other network device, continue to the “Using the
Wireless Connection” section below.
1. Start your Web browser. In the Address box, enter the following: »speedstream.
2. Press Enter. The SpeedStream Simple Setup Wizard will launch.
3. When prompted, enter the Internet connection information provided by your
Internet Service Provider.
4. At the end of the Setup Wizard, you will be given the option to either connect to
the Internet or further configure the optional settings of the gateway.
5. If additional configuration is desired, select the icon for the service or option
you wish to configure: the gateway’s firewall and security settings, User
Profiles and content filtering, or home network options."

"Using the Wireless Connection
By default, the SpeedStream® Gateway is configured to work
seamlessly with other SpeedStream® wireless products. The default
wireless interface settings are:
SSID: SpeedStream
Channel: 11
Mismatched wireless settings will prevent successful
wireless network connections between devices, so
you may need to reconfigure some wireless settings
to ensure that all settings match between wireless
devices if you are:
a) Using another manufacturer’s wireless products
b) Adding the SpeedStream® Gateway to an existing
wireless network
The Setup Wizard will walk you through setting up wireless settings."

To use AT&T Uverse for a home network, you need to get the AT&T "Homeview" Network Management software. AT&T provided this software in the past freely.

This software must be run on each PC on your home network, and then each PC can see the others. You then use go to My Computer, select each disk drive you want to share, right-click and select Sharing and Security, and select to share the drive. Then go on the drive to the folders you want to share and right-click and set them to be shared. Then the Homeview system will show these are shared folders. You can also share printers on the same network using the Homeview software.

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4s31

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1s18

does the appliance have a dchp ip address option or auto ip address option. The IP address is used by the wireless network to identify each computer device in your house.
In your wireless router there will be a dhcp server that will lease out ip addresses to devices automatically.
the ip address would be 10.0.0.1 for your router or 192.168.0.1 usually most used ip addresses .
A subnet mask is usually 255.255.255.0 which is also needed.
Go to your desktop computer and go to command prompt . Google your version of windows and command prompt to work out how to do this.
then type in ipconfig
press enter key
note the default gateway address and the desktop's ip address
you may need to enter the default gateway ip address into the fridge also.
if the desktop was 10.0.0.2 subnet mask 255.255.255.0
then make the fridge if manually have to set it
10.0.0.254 subnet mask 255.255.255.0
or 192.168.0.254 subnet mask 255.255.255.0 if it is 192.168.0.2
the first three numbers are called the network address eg 192.168.0
10.0.0
the last number 1 - 254 are individual address part
192.168.0.1 {router uses this 1 usually } to 192.168.0.254

Yes,If it is all on one network. That is the same IP scheme and Gateway.
Just set up a Home Network and give permission for all the PC's to access your "server"
No need to buy anything, just go into the Control Panel, Network Setup Wizard.

I’m happy to assist further over the phone at https://www.6ya.com/expert/joe_8b8c2cd6ce148309

you may need to run the network wizard, as your sony may not be set up as using a gateway type connection and may be instructing other pcs to connect via itself and not on the network.

If not done allready, setup the lan IP address and default gateway in win98 Click MyComputer-ControlPanel-Network-Double Click TCP/IP Adapter for your 3com device-insert LAN info for IP Adress-subnet mask, Gateway and your Internet service providors DNS Addresses info Tab's (3x different Tabs "IP Adress" "Gateway" "DNS Configuration") IP Adress will be at least one number higher than your gateway address and not allready being used by other PC's on your network and gateway address will same as your router interface address subnet mask will be the same for all PC's on your network. For 3com and Netgear routers LAN setup is usually Gateway = 192.168.1.1 Subnet Mask = 255.255.255.0 IP Adress = 192.168.1.10(choose alternate number than 10 if allready used by another PC on your network, try to use round numbers, must be a number higher than 1) Once all info is entered click OK (this may trigger a database info update message and task)now your LAN is setup and ready to talk to your network Restart PC and try browsing again. May possibly require reinstallation of the TCP/IP client (you double clicked this to setup your LAN in Win98) or reinstallation of the IIS(Internet Information Services)component found in, Add/Remove Programs-Add/Remove windows components and then try LAN setup again if this does not work first time round

This is unusual, as it seems the router is allocating two pc's the same IP address. Go into your routers settings (internet browser and type the router address, eg 192.168.1.1)' and look at Client DHCP list and look at the IP addresses that each pc has been given and see if two are the same, they should be one digit difference, that being the last. Also go into the properties of both your pc's wireless cards and ensure that they are set to obtain an ip address automatically.