clean my network

What about Norton? they tried the same sales pitch wanting over $200 to rid my network of hackers. They wouldn't even let me install the Norton security as they said my network had suspicious activity. Sounded like a big scam to me.

MannKeys wrote:

What about Norton? they tried the same sales pitch wanting over $200 to rid my network of hackers. They wouldn't even let me install the Norton security as they said my network had suspicious activity. Sounded like a big scam to me.

That's probably not Symantec (the company that makes the Norton software). That's probably a scammer pretending to be Symantec. If you called a number that showed up in a pop-up in a browser window claiming that you were infected, or if they called you out of the blue telling you they had detected problems with your network, then they're scammers.

Are you referring to a local wi-fi network? If so, anyone in range can view your network (NOT sign on to it if it is password protected). You cannot "clean" those out.

Barry

I have some unknown IP addresses that supposedly

have access to my network, how can I get rid of them?

First, be aware that there are many possible devices you could have legitimately connecting to your network that you might not ordinarily think about - smartphones, tablets, printers, game systems, high-end thermostats, door locks, alarm systems, etc. Make sure that you're not trying to lock out a device that you actually want to be on the network.

As to how to keep unauthorized people out of your network, you just need to lock down the wifi with strong encryption (WPA2) and a strong password. That should be sufficient for keeping out anyone who shouldn't be on your network. You can also use other settings in your router to lock it down further - such as only allowing devices with known MAC addresses to connect to the network or preventing the router from broadcasting the availability of the network. This shouldn't be necessary, but could add additional layers of security if you need it.

such as only allowing devices with known MAC addresses to connect to the network or preventing the router from broadcasting the availability of the network.

While possible, you should know that enabling these features is just a "Pain in the ..." to administer.

Using WPA/WPA2 WiFi Protected access with a good password will keep your home WiFi network secure. To date, WPA2 encryption has not been defeated as long as there is a good password.

MAC address filtering and hiding your SSID are easily bypassed, and as I said a pain to administer.

Now, how do you know there are "unknown IP addresses" on your network? What tool are you using?

You might want to use Bonjour Browser, which might put names to the IP addresses you are seeing

<http://www.macupdate.com/app/mac/13388/bonjour-browser>

And sometimes WakeOnLan can be helpful in showing devices using IP addresses on your network

<http://www.macupdate.com/info.php/id/15779/wakeonlan>

This may not give every device an name, but often times you can figure out what an unnamed devices is by taking the 1st 3 number from the "MAC Address" field (the manufacture ID) and plugging them into a web site that translates the manufacture's ID to a name, such as:

<http://www.coffer.com/mac_find/?string=fc%3A2a%3A54>

For example, I used WakeOnLan to see the devices on my network. I had one that did not have a name, so I plugged the first 3 digits of the MAC address (fc:2a:54) into the above web site and got "Connected Data, Inc.". Given the manufacture's name, I know know that this MAC address belongs to the "Transporter Sync" from Connected Data I have in my pantry closet.

Chance are you DO NOT have any foreign devices on your network. Rather you have things like networked printers, or printers plugged into WiFi routers that are acting as print servers, or you have a printer with a SD card slot that is acting as an CIFS/SMB server, or a WiFi extender, etc....

That is McAfee's usual sales pitch. Avoid McAfee at all costs on a Mac.

Pete

You have no problem if you (as indicated) use good security on your network. Creating a new network will do exactly nothing.

Barry

Anti-malware software has caused far more problems on Macs, than they found malware. The general advice of the forum is to not install any of these packages, and depend on the built-in Mac OS X anti-malware features, which have been protecting you all along.