first off, ano gamit mong internet? dsl? ano provider
naka network ang computers?
the tips mentioned by tamers will only work is you are using dynamic IP adds (like those being provided by PLDT dsl). if your Ip add is static, it wont help you. im guessing its static and there is more than one computer using the internet connection since you have mentioned "your ip add is currently downloading a file"
btw, about the ipconfig. make sure you type ipconfig.exe. there is a new spyware nowadays that installs .com applications in windows/system32 folder. example regedit.com, task manager, ipconfig, ping.com, etc. so when you use start ---> run and you only use the word regedit, regedit.com will be executed and not the legit regedit.exe