Simple as that. When I turn on skype my internet disconnects. Skype worked on my old computer, its the same router, so I cant see how its a router issue. I went into preferences>advanced and unchecked the boxes other similar threads suggested to turn off. It still shuts off my internet. Those were basically the only suggestions I found in other threads, router and unchecking those boxes, neither seem applicable/work.
Check connection settings
In Skype Click Tools >> Click Connection options...
type any port between 1024 and 65535
check this settings "use port 80 and 443.....incoming connections"
... if it had been ticked, then... Remove that check and try then.
try disabling uPnP too.