How to build a network in the office?

Question

Computer networks

So.... Village... I am a confident user. They took me as a system administrator to work in a library.
Recently the network on several computers falls off.
Because of some free censor (with the name "Internet censor") some of the pages do not open (thanks to the VERY EVIL censor), and those that open - open for a very long time.
Now the network is set up like this:
- a cord with a white IP, commercial, (2 Mbit / s) (!!!!)
comes in (!!!!) and....
.... everything is built on small network hubs ...
In total, about 12 computers
There is also a "server" ... An ordinary (not even the most powerful computer running windows server 2003 with the ability to install (There is a key) Windows server 2012 (r1), on which the server application with a database of books ("Irbis64" is running) ) works via TCP.
Here .... and somewhere else in some hub there is a cord from another institution (goes through ADSL - connection), which would also be nice to use.
There will also be a website on the server.
Question:
How to build a network using a server, not a modem
?

Answer 1

Hire a normal system administrator for a couple of days, who will figure it out on the spot, tell you what to do and teach you how to serve within this network.
The main problem is that you, as an advanced user, and not an admin, cannot figure out exactly how everything works now. If this was already configured and described, it would be easier to maintain. And so - some laces, some modem, some white lace, some switches are stuck into each other.
It is not clear who issues IPs, what IP and subnet settings are unknown.
Find an admin.

Answer 2

start to deal with computers that fall off. recompress wires, change network cards / check their hub.
then a long opening of pages - check/ping dns, perhaps temporarily try to use Google's 8.8.8.8
IMHO inside such a grid with such a narrow channel The site has nothing to do ... definitely third-party hosting.
and the last thing - look at the admin panel of the router, study and smoke the manuals, communicate more actively with the provider, ping everything inside for a couple of three hours, see where the jambs are. use some kind of lanscan and other tools, check the firewall / antivirus settings, delve into it ...