|Hi Davey. So you are splitting the WiFi between 5 devices, that can slow things down a bit. The 100mbps down and 15 up is most likely based on a wired Ethernet connection, it's always going to be slower on a WiFi connection.|
Please post back the 802.11 protocol you are using such as 802.11a, g, n, ac, etc on the devices, your router is capable of using both the old and new speeds simultaneously so it may be that some of your devices are using the old slower speed. Also, for testing purposes, turn off the Bluetooth option on your devices. The older 802.11 protocols use 2.4 GHz as the operating frequency and so does Bluetooth. It can interfere with each other.
Also when testing one device, turn off all other devices that use WiFi. Your router is capable of using beamforming technology which means it will send out a stronger signal in the direction of detected WiFi devices. If you have several devices in one room/area it may be sending out a stronger signal to that direction than the direction your are testing a single device in.
"Okay, broadbands, my net is the one on 2."
I don't understand what you mean by this. Are you talking about the WiFi channel? If so, you can also try changing that. If a neighbor is using the same channel it be interfering with yours.
Electrical devices such as florescent lights, microwave ovens, power tools, can create interference which can affect the WiFi signal. When you test the devices, try to turn off anything that can cause interference. Also make sure you are in the same location when testing each device and try to get as close to the router as you can, at least within 10 feet with no obstructions between you and the router.
Here's a link to your router, it explains in better detail about the features of your router.
message edited by THX 1138