Gmail connectivity failure – browser problem or connection error

Hello,
I use gmail as my favorite mail and I have been using it for a while now. Recently there has been some problem with connecting gmail and I do not understand what is causing this problem. I need to know whether this is a browser problem or problem with my internet connection/IP, or is it just a problem of my pc. Should someone know of this problem kindly help me with it.
Johan Weiz
