So I need to buy a router just for the camera to be a sever? Cant the d5300 just connect to my laptop?
You misunderstood how wifi works. Wifi devices are NOT point-to-point (peer-to-peer) communications devices - it's part of the Internet and internets devices requires servers and routers. An IR remote trigger for your camera or a pair of walkie-talkie are point-to-point wireless communication devices. Wifi is a "star-configuration" - ie many devices are connected to a wifi router ("Access Point" - AP) as the hub and they communicate to each other only through the hub - the AP device. Only the AP device (The Hub) knows of all the devices connected to it - the other device do not. If you have a computer and a printer all with wifi, your computer do not "know" where to send the print job. It knows only the address it needs to send to and pass it to the AP. The AP looks at the package and say "oh, that's the address of the printer - I know where it is" and routes the print job to the printer. How does it know? Because the AP is the one who doled out the addresses. Your computer send stuff to the printer or it may send stuff to Amazon.com - the AP looks at each "package" from device connected to it and decide if that package should go to the printer or off to the your ISP (Internet Service Provider) to find Amazon.com. So for your computer to print to a wifi printer, both must share a common wifi router ("be on the same network.")
So, there are no Wifi devices that can communicate directly with another device unless that device can also doubles as a wifi router. Your computer can be set up as "peer-to-peer" network which means that two computers can just talk to each other and no one else - but one of the computers must doubles as a Wifi router (AP device emulation.) Your iPhone can be setup in "Tether mode" and become a Wifi router/AP device to let other computers hook up to it but cell phone service provider severely restrict what routing function it can provide as an AP device - it can only route your computers' packages to the Internet (via your cell provider as your ISP) and not directly to another computers linked to it. Your iPhone in non-tether is just another wifi device and can link up with your computer (as for iTunes sync) but the two must have access to a common Wifi Router/AP device ("be on the same network") - there we go - a star configuration.
So back to your problem - unless the CamControl device implements its wifi function as a full functioning Wifi Router/AP device, it cannot communicate directly with your computer. It is merely another wifi device and as such will not "know" your computer - it must talk to the world via a Wifi router/AP device and can then communicate with all devices attached to that router/AP device. Being able to function as a wifi router/AP device would require a lot more sophistication in the hardware and software (aka much more expensive), would require setup as a router and DHCP server (Dynamic Host Configuration Protocol - ie knowing how to dole out IP address to devices) and more extreme security implementations. Hence I don't think they would provide that function.
(An aside - I hope you understand why complex Password system (WAP/WAP2 etc) are required when setting up a wifi router as any rouge device attached to that router can now get to all devices attached to that router - bad bad situation!)
Hope that helps.