Perhaps no one knows the answer. I see you haven't posted info about your ISP, what update you installed, what type of connection you have or the operating system.
Threads like "i changed something now it doesn't work" don't help themselves if they don't ACCURATELY describve the problem.
So what if other problems are solved first! Is this your forum? Do you pay for it?
Stop throwing your toys out of the pram and wait for a response.