I have an ADSL account through Incredible Connection, and my router is the latest Netgear model supplied by Telkom.

Generally the uptime has been very good in the two years or so that I have had the account, but the past few days have been very erratic.

The red light on the router comes on regularly, cutting the connection, and stays off for a few minutes, and then disappears of its own accord, restoring the connection for a few minutes, and so the cycle repeats itself.

I have pressed the reset button and I have cut the power to the router for a while, but the problem persists.

My problem is that I don't know where to start troubleshooting - is it the router itself, or do I call Telkom, or do I call Incredible Connection? I am dreading the inevitable situation where the one party blames the other party for the problem.

What would you do?