Hi there from across the pond! I cannot determine if your system shipped with win7 32-bit or win7 64-bit, but being a budget PC, I am assuming it has win7 32-bit? (you can find this out by clicking Start ~> RIGHT click on "Computer" ~> chose "Properties". It will state either 32-bit operating system, or 64-bit operating system under "System Type". (under "System")
Did you chose "Home" or "Public" as the network type, when setting up the PC? (You can find this out and also change it by going to Start ~> Control Panel ~> Network and Internet ~> Network and Sharing Center (or, if either small or icons are shown in Control Panel, as opposed to the "Catagory" viewset, you would go to Start ~> Control Panel ~> Network and Sharing Center (confusing, I know.)
In the Network and Sharing Center, under "View Your Active Networks" it will show your Network (either Home, or Public, etc.) This needs to be "HOME" if you are on a home network. If it does not say "HOME" Click either Work Network or Public Network and change it to HOME instead.
While still in Network and Sharing Center, in the upper left corner, click "Change Adapter Settings".
If you are connected to your router using an ethernet cable, RIGHT click that connection and chose Properties.
If you are connected to the router using a wireless adapter, RIGHT click the wireless adapter and chose "Properties".
Click Internet Protocol version 4, then click the properties button
Make sure "Obtain and IP address automatically" is checked. Also make sure "Obtain DNS Serve automatically" is also checked.
Close out and now click "Internet protocol version 6" and then "properties" button.
Make sure "Obtain and IP address automatically" is checked. Also make sure "Obtain DNS Serve automatically" is also checked.
Close out of the dialogue boxes until you are back at "Network Connections".
If you created any new connections, such as a PPPoE connection etc. then right click it and chose Delete. (for any that you may see, other than Local Area Connection and any wireless connections or bluetooth connections)
A PPPoE connection is used on a PC only when a DSL modem is directly connected to the PC. It is not used when the DSL modem is connected directly to a home *router*, as the router uses a PPPoE connection to connect to the DSL modem for you, the router then *shares* that internet connection with all PC's in the house that connect to the home router.
(confusing , I know.)
Now, in Network Connections, you should only have a hard-wired adapter icon (It will have a wire beside it) and/or a wireless adapter icon. (it will have a wireless icon)
You may or may not also have a bluetooth network icon, if so, just ignore it.
If you connect using wireless, left click the wireless adapter icon one time, then chose "Diagnose This Connection" at the top of the window.
If you connect to the router using a wired ethernet cable, left click once on "Local Area Connection" and then click "Diagnose This Connection" at the top of the window..
After the Network Diagnostic runs, it should 'fix' any errors and you should be connected.
If you are connected wirelessly, and your wireless network (also called an SSID) has a password on it to prevent others from connecting to your home network, you will need the password to join the network.
If you forgot your password for your home network:
Download the software linked at bottom and run it, chose to "Show Advanced Tools" and it will show you your wireless networks (SSID) password (by clicking "retrieve WPA/WEP Key") Alternately, if you are on a WIRED connection to your router, you can log into the router and find your ISP (Internet Service Provider) username/password. Do this by clicking "Configure Detected Router".
(If you cannot see the DSL password in your routers settings, you may call your ISP and they will provide it to you.)
You may or may not need this information, though!
I suspect you will *not* need this info, as the other PC's connect to the router and also the internet, through the router - just fine.
It seems to be a configuration issue with THIS new PC. (not the router.)
Note: the HP Network Diagnostic Utility is designed for troubleshooting HP printers in regards to networking, if you do not have an HP printer, it will not find one, obviously, but the other useful tools the software does is really why I am suggesting to use it. Just ignore any errors that it did not find a printer.
Download the HP Network Diagnostic Utility
I hope this helps!
Rich