I have run into an issue I can not resolve myself.
I have 3 devices that are now running super slow internet speeds over the wifi (0.50mbps according to ookla). Meanwhile other laptops and phones run at 16mbps over the wifi. The devices are a toshiba laptop, a nexus 10 tablet, and playstation 4. I also hard wired the laptop and then it shot up to the same 16mbps that my desktop and other devices get via wifi but as soon as I go back the wifi back to baically nothing. The main thing I think it might be is that the 3 devices that run really slow do not recognize the 5.0GHZ and are only connecting to the 2.4ghz. I have switched my 1 laptop over that works fine from the 5.0GHZ to the 2.4GHZ and the speed according to ookla drops from 16mbps to the same 0.50 mbps.
I am stomped...i have turned off the setting on the laptop that allows it to manage power, i have adjust the playstation to manually connect to the google DNS and changed the MTU but that all brought it up to blazing 250kbps (felt like i was on AOL dial up again from the 90s). I have provided some specs below but let me know if you need any other details. I have restarted all the devices, updated the drivers on the laptop, hard wired the laptop....so i have ruled out drivers, modem, router....so like i said i think there is something wrong with my 2.4 and I am not sure why those devices can not detect the 5.0.
The router is a Belkin Wireless Play Max Router:
Dualband 2.4GHZ and 5.0GHZ
300mbps
802.11n
The laptop runs:
windows 8.1
realtek rtl8188ce wireless lan 802.11n pci-e nic
(does not recognize the 5.0GHZ only the 2.4ghz)
Tablet:
Nexus 10
Anroid 5.1.1
(does not recognize the 5.0GHZ only the 2.4ghz)
Console:
Playstation 4
System update 2.55