Can anyone help with some comp issues

ok here’s the deal, my comp a couple months back decided to get real weird with me. certain applications won’t connect to my router and some do.

like ie,ad-aware,limewire they connect to the internet

but apps like instant messenager and mozilla won’t connect online.

any suggestions?

thread for this is stickied, sir.

aiight mods can delete this imma repost in that thread.