If others are having the problem, that makes me consider congestion.
As has been requested, can you post your modem stats?
The thing to look at, is it a drop in sync speeds on the actual connection, or just the throughput you can actually obtain which may be much lower.
As has been requested, can you post your modem stats?
The thing to look at, is it a drop in sync speeds on the actual connection, or just the throughput you can actually obtain which may be much lower.