Re: Do I need to buy a new router?
First what do you mean by signal that goes in one direction? Because they are radio waves the signal will bounce around and go everywhere. However you can get routers with external antennas that you can point to help direct things, but it will always spread out.
When it comes to networks there are two kinds of speeds - internal and external. External is this case would be your internet. The 10 Mbps is the max theoretical download speed of of things coming into your network. This is theoretical because you'll never get the max speed in practice. THe servers your download from can only upload so fast and there is more traffic on your ISP's lines than just you.
Where this part gets confusing is when you add the internal part of the network. In your case, your wireless router's internal max speed is 54 Mbps - this means that file transfers and data sharing between computers that are all on your network will have a max speed of 54Mbps.
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