I have this Netgear 5-port gigabit switch. You know, one of those rounded white models. Well, it worked well in combination with a Netgear DSL router for a few years.
The network topology is relatively simple: the DSL router with one PC connected to it via ethernet, 2/3 devices connected via wi-fi, and the switch connected to it as well. The switch is connected to 2 other PCs, one of which is almost always off.
Everything used to work very well until I noticed a few weeks ago a degradation of the Internet connection speed, down to around 1MBit/s instead of around 4. I blamed the DSL provider, as one would naturally do. Today I took the time to test the connection from the other PCs, and it is way faster when not passing through the switch but connecting directly to the DSL router.
I noticed that with all PCs off, on the DSL router the led of the connection between it and the switch always, constantly blinks. I'm assuming the switch is broken and for some reason it still works but with a degraded performance, which is a bit odd in my opinion.
I'm resolute about replacing the switch, but I was wondering if what I'm seeing makes sense at all before wasting money.