Router vs modem: things you should know
A typical router has several plugs:
1. The power adapter plug.
2. Several Ethernet plugs. Routers usually have 1...6 plugs like 
these, but most of them have 4 Ethernet plugs. These ports are used 
to connect various devices to the router using standard LAN cables.
3. The Internet plug, which is labeled "WAN" or "ADSL".
4. Optional USB plugs, which can be used to attach storage devices 
or printers that will serve the entire network.
Modems are only used indoors, but some routers are built using 
special components and cases, which make it easy for them to 
withstand harsh weather conditions. A few manufacturers sell various  
aren't ready to invest money into an outdoor router or...
The A to Z SSID Guide
Most people know that SSID, the acronym for Service Set Identifier, 
is a name associated with a Wi-Fi network. The devices that 
connect to the network - also known as clients - use this name, 
which uniquely identifies the network and is broadcasted several 
times per minute, to connect to it.
Your router stores the SSID name, but if you've got administrator 
privileges, you can (and should) change it. You can also hide SSID 
broadcasting from the same router admin menu. We'll discuss if that 
is a good idea or not in this article.
be either letters, numbers or (my recommendation) a combination of 
them. It is good to know that the SSID name is case sensitive, so 
"Mynetwork123" and "mynetwork123" are two different network 
names.