I bought a 10/100 8 port switch for my home network, the previous hub burned out after a couple years. I basically run it 24/7, and with filesharing going on, it's pretty much working nonstop. The adapter (9V, 500MA) burned out after about 6 hours of usage. I thought it could be just an accident, so i bought another adapter, but leaving it overnight resulted in the same thing. it's burned out again. The guy who sold it to me said that i'm not supposed to plug an electrical device that has an adapter built in, into a stabilizer or UPS. That that would make it short out. Is this true? or maybe is there also another explanation for it? like it's a low-quality hub that can't stand up to constant traffic? i really have no idea.

About switch working
Baylan Network Switch Problem

I put a switch on network hangs at night btw night 8 pm to morning 9am
How is this situation can possible?

-reply by gulshan