Internet fast on the iphone, slow as hell on the pc (wireless)?

Can anyone help me? Internet on iphone(wireless) goes to 4.2mbit/s, but when I connect it with my pc(via wireless too) it goes slower and slower(with new router)… I tried to deactivate the firewall… Nothing happens… Should I do anything different!

thank you all for the help,

Federico

Note: I'm passed to a new provider some days ago, and the activation is done.
1) with my old router via Lan/ethernet pc goes very fast - via wireless, slower than now
2) with new router provided by the provider(sorry. ) via lan goes slow - via wireless just a little faster then with the old router

Not all routers are the same, there's a change that your router new
router is weaker, but like you have mantioned you didn't had this problem
with the old one.
There's a possiblity that a virus or spyware is intalled on your computer.
This could slowdown the internetconnection on your computer.
Maybe you could try a virus remover or a spyware remover.
I would recommend Avast because its free.

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