Q: unknown shared pc on finder

Just found this as situation as well. Here's the Netstat info:

Routing tables

Internet:

Destination        Gateway            Flags        Refs      Use   Netif Expire

default            dsldevice.att.net  UGSc           25        0     en0

127                localhost          UCS             0        0     lo0

localhost          localhost          UH              2       84     lo0

169.254            link#4             UCS             0        0     en0

192.168.1          link#4             UCS             1        0     en0

192.168.1.72/32    link#4             UCS             0        0     en0

192.168.1.254/32   link#4             UCS             1        0     en0

dsldevice.att.net  f8:b:be:25:f8:90   UHLWIir        27     5257     en0    978

192.168.1.255      ff:ff:ff:ff:ff:ff  UHLWbI          0        3     en0

Internet6:

Destination        Gateway            Flags         Netif Expire

localhost          localhost          UHL             lo0

fe80::%lo0         fe80::1%lo0        UcI             lo0

fe80::1%lo0        link#1             UHLI            lo0

fe80::%en0         link#4             UCI             en0

fe80::bae8:56ff:fe b8:e8:56:49:86:a2  UHLI            lo0

fe80::d2bf:9cff:fe d0:bf:9c:cc:b0:6e  UHLWI           en0

fe80::%awdl0       link#9             UCI           awdl0

fe80::e867:bbff:fe ea:67:bb:fb:d:53   UHLI            lo0

ff01::%lo0         localhost          UmCI            lo0

ff01::%en0         link#4             UmCI            en0

ff01::%awdl0       link#9             UmCI          awdl0

ff02::%lo0         localhost          UmCI            lo0

ff02::%en0         link#4             UmCI            en0

ff02::%awdl0       link#9             UmCI          awdl0

Here's the screen shot of what it looks like. The information is never "fetched" -- any advice is welcome! Can't seem to remove it.

Now I have exactly the same issue:

Routing tables

Internet:

Destination        Gateway            Flags        Refs      Use   Netif Expire

default            skyrouter.home     UGSc          138        0     en1

127                localhost          UCS             0        0     lo0

localhost          localhost          UH              2      848     lo0

169.254            link#5             UCS             0        0     en1

192.168.0          link#5             UCS             1        0     en1

192.168.0.1/32     link#5             UCS             1        0     en1

skyrouter.home     3c:81:d8:98:4:79   UHLWIir       140      831     en1   1167

192.168.0.9/32     link#5             UCS             1        0     en1

rhyss-imac         c8:e0:eb:4c:93:9b  UHLWI           0        5     lo0

192.168.0.255      ff:ff:ff:ff:ff:ff  UHLWbI          0        1     en1

Internet6:

Destination        Gateway            Flags         Netif Expire

localhost          localhost          UHL             lo0

fddc:4702:ad::     link#5             UC              en1

fddc:4702:ad::396f c8:e0:eb:4c:93:9b  UHL             lo0

fddc:4702:ad::cae0 c8:e0:eb:4c:93:9b  UHL             lo0

fe80::%lo0         fe80::1%lo0        UcI             lo0

fe80::1%lo0        link#1             UHLI            lo0

fe80::%en1         link#5             UCI             en1

fe80::ce7:8d0b:ff4 58:55:ca:5d:1e:20  UHLWI           en1

fe80::22c9:d0ff:fe 20:c9:d0:44:ec:7d  UHLWI           en1

fe80::3e81:d8ff:fe 3c:81:d8:98:4:79   UHLWIi          en1

fe80::cae0:ebff:fe c8:e0:eb:4c:93:9b  UHLI            lo0

fe80::%awdl0       link#10            UCI           awdl0

fe80::a454:61ff:fe a6:54:61:1b:7e:93  UHLI            lo0

ff01::%lo0         localhost          UmCI            lo0

ff01::%en1         link#5             UmCI            en1

ff01::%awdl0       link#10            UmCI          awdl0

ff02::%lo0         localhost          UmCI            lo0

ff02::%en1         link#5             UmCI            en1

ff02::%awdl0       link#10            UmCI          awdl0

anyone able to help?

I had a similar problem. I went into System Preferences -> Users & Groups and selected Guest User. I unchecked the "Allow guest users to connect to shared folders" and the mystery "PC" went away.

Still not sure why that was there and if it was a security problem but, since I normally don't need to have a guest user access shared folders, I can assume that the immediate problem has been resolved.

I had this problem a few days ago. Go to settings, advanced, WIN tab. There you'll find the unidentified computer. Delete it add your computers name click plus, and the unidentified computer  disappears.

I have a very similar issue and have posted elsewhere as I have Yosemite. The thing that concerns me is the name of this mysterious thing. Can anyone shed some light on it?

Hi All, I had this issue as well and it turned out to be the little 2GB memory card in my printer.

I also have this problem, although I am unaware of any Hamachi applications I have installed and can't see anything in 25 range of IPs. Also looking in my router admin, there appear to only be 4 devices connected to the network. My iphone, my girlfriends iphone, my iMac and my girlfriends MacBook. Any clues?

I had this problem, too, with a mystery hp listed under "Shared" in my Finder sidebar. After reading through all the suggestions in this (and related) threads, it was removing the guest user that removed the computer (not sure why "allow guest users" should be a default??).

I have the same problem. I am at the beach, on a little Netgear RangeMax N150 wireless router. There are no printers here. I am the only computer on the network, thought a few phones and iPads also are here using it. There are neighbors in houses that are close enough that might be able to get on, but the network is password protected, though it is not a particularly secure password.

I have no VPN things or video games. I am on a Mac Air 2012 with the latest Yosemite OS X operating system.

Here's the little screenshot:

Sharing is all turned off in System Preferences.

Clicking on either of those reveals something like this:

Any thoughts of solutions? Is this a security issue?

Daniel

Linc, would you look at mine as well?  I closed my shared printers and they went away then reappeared.  I rebooted and they remained…  Thank you, Kimberly  I just disabled guest user and they're gone for now; hopefully not to return.

Routing tables

Internet:

Destination        Gateway            Flags        Refs      Use   Netif Expire

default            192.168.1.1        UGSc           79        0     en1

127                localhost          UCS             0        0     lo0

localhost          localhost          UH              1      192     lo0

169.254            link#5             UCS             0        0     en1

192.168.1          link#5             UCS            11        0     en1

192.168.1.1        c0:c1:c0:9d:34:e0  UHLWIi         77        2     en1   1175

192.168.1.60       2c:33:7a:54:b0:a6  UHLWIi          0        3     en1   1146

192.168.1.70       0:80:92:a8:7f:9d   UHLWIi          0        5     en1    688

192.168.1.132      localhost          UHS             0        0     lo0

192.168.1.133      b4:b5:2f:10:45:3   UHLWIi         27     4556     en1    688

192.168.1.136      9c:4e:36:c4:b1:98  UHLWIi          0       84     en1   1176

192.168.1.137      bc:4c:c4:c7:90:18  UHLWIi          5   134292     en1    964

192.168.1.138      a0:18:28:b2:e7:1c  UHLWIi          3      186     en1    656

192.168.1.140      70:f1:a1:4a:bf:16  UHLWIi          0       85     en1   1176

192.168.1.255      ff:ff:ff:ff:ff:ff  UHLWbI          0       62     en1

Internet6:

Destination        Gateway            Flags         Netif Expire

localhost          link#1             UHL             lo0

fe80::%lo0         localhost          UcI             lo0

localhost          link#1             UHLI            lo0

fe80::%en1         link#5             UCI             en1

kimberly--wills-im 4:54:53:b:59:20    UHLI            lo0

william-marantos-i a0:18:28:b2:e7:1c  UHLWIi          en1

kks-iphone-6-plus. bc:4c:c4:c7:90:18  UHLWIi          en1

ff01::%lo0         localhost          UmCI            lo0

ff01::%en1         link#5             UmCI            en1

ff02::%lo0         localhost          UmCI            lo0

ff02::%en1         link#5             UmCI            en1

This worked for me as first but they're back.

Something is not right with the answer that "someone are just sharing their PC"...Because how can that piece of information get in to your private network if nothing but the Internet Service provider suppose to have access to show data in to your system?

In other words how can your next door neighbor computer show on yours if he is not connected to your router or wifi? How can you see him if you are "not" connected to his wifi?

For what I understand you can only use one wireless or networking service at time, right? At least on a End User set up.

Check with all users of your computer. See if anyone is a "guest" user for an application, such as Picasa, for editing photos, uploading music, etc. I discovered that a friend had used my computer (with my permission, which I'd forgotten months ago) to upload/download/edit pixes. Once I went to System Prefs-->Users & Groups-->Guest User(Login/Sharing), I saw that I'd granted permission to guests without need of a password. I had checked the boxes permitting guest access to connect to shared folders (which, of course, was necessary for them to edit my pixes). You can option out of that permission as well as any parental controls. When I closed my guest's open screens (you can find those screens by going to your user name on the extreme top right corner of the top menu bar, next to the search icon), the mystery shared computer disappeared. I hope this solves our problems. So far, so good with my system.

Thank you for the observation, is a very good point you made but this is not my case. I double check regardless and there is not a sep up and never been for a guest user.

Sounds like you might have SMB (Windows) Sharing turned on.

To check, go to the System Preferences and click on Sharing. In the list on the left click on 'File Sharing' then there is a little button on the top right called 'options'. In the drop-down that appears check that SMB sharing is un-ticked.