I can see my neighbors PC, under the shared column in finder, can they see mine?

[Swagged]

My file sharing is off. I clicked on their pc, and it said connecting I hope their pc didn't alert them...

This is what I see:

 

[2984839]

Uh, are you on his network or is he on yours?

 

[GhettoMrBob]

Clearly you're either sharing your network with them or vice versa. That would be my first major concern if you are connected to YOUR network and have not given them permission to use it.

 

[Ann P]

You're using each other's network/wifi, lol.

 

[Swagged]

You're using each other's network/wifi, lol.

Ok, I'm changing my wifi password immediately

 

[capathy21]

Ok, I'm changing my wifi password immediately

Tell your cheap neighbor to pay for their own internet!

 

[ProVideo]

Ok, I'm changing my wifi password immediately

Was it 12345?

 

[Swagged]

Was it 12345?

No one of my siblings probably gave the password to them...

 

[happyfrappy]

If it wasn't shared wifi passwords, some cable internet providers such as Comcast Xfinity wifi routers will allow other customers to use your service as part of their wifi everywhere scheme.

On the other hand, some cable providers don't firewall their modems so sometimes you can see other computers/networked printers on the node (MediaOne/AT&T Broadband suffered this, Comcast replaced modems to avoid this)

 

[goMac]

If it wasn't shared wifi passwords, some cable internet providers such as Comcast Xfinity wifi routers will allow other customers to use your service as part of their wifi everywhere scheme.

They aren't allowed onto the same network with those schemes. Comcast basically sets up a shadow network.

If that isn't working, he should be on the phone with his provider. No way an ISP can just open up one's network to others and that is OK. I'm pretty sure that's also illegal, hence the shadow network that is normally used.

It's like how Airport routers can broadcast two entirely different networks that share the same internet connection.

 

[Ambush083]

Block their Mac in case they connect again haha.

 

[happyfrappy]

If that isn't working, he should be on the phone with his provider. No way an ISP can just open up one's network to others and that is OK. I'm pretty sure that's also illegal, hence the shadow network that is normally used.

I'm not a Comcast customer, I've known friends who've had to do modem-router firmware updates to fix a shadow network bug--heck it wasn't illegal when MediaOne/AT&T Broadband didn't wall their cable modems/nodes during the mid 90s to 2003. Heck, in some areas Comcast still uses Amiga A4000 with Video Toaster at their community network studios