Region : Argentina

Model : TD-W8968

Hardware Version : V3

Firmware Version :

ISP :

Hi,

I need to connect one laptop and two iphone 4 to Internet through the wifi.
A speedtest app (ookla) gives that after test:
Pong 50
Upload: 50 Kb/s
Download:30 Kb/s
Many tests done. Results are mote or less the same.

How could I set up the modem router for an optimal wifi connection?

Thank youfor your help