suspicious thing

[flover21]

hi -
I've just changed ISP and got higher speed, but also some suspicious thing on left sidebar in Sharing.
As internet cable goes directly in to my iMac and the internet shares to WiFi, I can't get what is it?

 

[jbarley]

Any MS Windows computers or maybe a Boot-Camp installation on your WiFi network?

 

[JohnDS]

I am not sure I understand your setup. Is your Mac connected directly to your modem by an ethernet cable? What do you mean by " the internet shares to WiFi"?

If your mac is connected directly to your router by an ethernet cable, go to your network preferences and tell us what your IP address is leaving off the last octet. (eg. 192.168.1.xxx)