I wish I had an IT person ;( I don't have a clue as to how to set it up. Do I attach the cable to the server or the router?
Well, you wouldn't connect it to the server, unless you have another NIC. I am a little confused by some of your answers. How are you going to just connect your laptop to the router. The Ethernet cable would be running all over the place.
Here are your issues. First, while you can connect it to the router, depending on how many computers are being used, you really should have a 1GB switch. With wireless it doesn't matter. If it is only this computer, then you can use the router.
So, I suspect you have something like the following:
ISP providing Internet connection via a modem. The modem is connected to the router on the WAN port. The router is providing wireless connection. Right there you need to know if you are using ac or n or whatever. It should say right on the router. It will make a big difference in speed. Again, if you have many computers that will need wired, then the router should connect to a switch. The switch is simply there to give more connections to computers. Again, you don't need one if your router has wired Ethernet ports.
At this point, I would take the laptop to the router and using a short Ethernet cable plug it directly into a LAN port on the router as a test. If you are much faster, then hard-wired will be helpful.
OK, so down to the nitty gritty. If you want a hard wired connection in each room, rather than run a cable somehow to your laptop, you will want to run a cable to the room. You will go where the router is and run a cable from a LAN port through the building (basement/attic/whatever). If you have a drop down ceiling that is the best way to go. Once this is connected to wall jacks in each room, you can connect the laptop to that jack via an Ethernet cable. (patch cable). Note: If you aren't IT capable, you are likely not going to know how to run a cable. So, best to have someone run the cable from the router to the rooms.
FYI: I left this out, but most LANs don't have cables running from routers or switches directly to rooms or wherever you need a network connection. I hate to use the term punch down block, but there is usually a simple piece of equipment that all the wires from the rooms come to. They attach to that, and that attaches with 6 inch cables to your switch. The reason being if you connect it directly to the router or switch, it is too easy for the wire to pull the router or vice versa. Plus, it just makes it easier to keep track of things.
But, here is the thing to think about. You could have bottlenecks at many places:
1. Your router may not be broadcasting at a high enough speed
2. The NIC card on the laptop may not be fast enough
3. The cable to the server, may be less than 1 GB. (I am assuming your server connects via Ethernet cable to the router).
4. The Ethernet ports may only be 10 Mbs or 100 Mbs on your router
5. The setting on your server's NIC could be slower than GB.
Given that you need to run cables at the very least, you may as well pull out the phone book, Yelp or Google and find a reputable company to come out and look. It is very much worth having someone who can do all this for you. Check the speeds, etc.
If you router is a $75.00 D-Link or Linksys or Netgear, that is an issue. Your router should be somewhere in the neighborhood of $200 or $300 at the least.
The other thing is when your doctor is using the laptop, you can easily go into settings and click on the wireless icon and check what you are getting. It should show the speed like 72 Mbs and the connection: Fair, Good or Excellent. It is easy to add wireless access ports. There again, you could do it in 15 hours. I could do it in less than 20 minutes. Hiring someone is helpful. Wireless doesn't go through walls very well.
I did suggest that you connect the laptop directly to the router. (LAN port on the router to the Ethernet/Network card/NIC on the laptop and check your speed. Given there may be an issue with the cable to the server, you could plug it directly into the server. You can use any patch cord. In the old days, you had to use a crossover cable, but now you don't.
GET AN IT PERSON TO SET IT UP. IN MY OPINION THERE IS NOTHING BETTER THAN WIRED WITH A DESKTOP. But, if you are going to use a laptop, then a wireless connection is great, but with a wired jack in the room, you will have the option of connecting in seconds.