Skype crashes my Internet

[gioka]

Hi! i had a problem with skype. Every time i start skype and i tried to log in the internet just crashes.. Actually the network crash and non of the pcs i have on this network have internet access. The problem is only on the skype i use in this pc. To solve the problem i had to close skype and dont let it start at the start up of windows and restart my router and the pc. i know that there is similar topic but i tried to apply the methods they say.. no luck! Please Help.. i need skype! 

ps. i use win7 (64bit edition) and the connection is wired. No Antivirus is running, and an error in event viewer says:

"Name resolution for the name apps.skype.com timed out after none of the configured DNS servers responded."

[g4pilut]

What type connection do you have to the Internet?  Cable?  DSL?  Etc?

Click on Tools > Options > Advanced > Connection.   What number is showing in the "Use port ...... for incoming connections" box?

[gioka]

I have a DSL connection and the port is 1024, and checked the "using ports 80/443".

[g4pilut]

Try setting a different port number in that box, a random number...say....23300.  Uncheck the use the port 80/443 and the use uPnP boxes, save the changes and restart Skype.

See if that helps.   It's worked for others having a similar problem with DSL.   If it doesn't work for you and Skype can't connect with a random port set, you can set things back to the way they were.