The first thing to check is how you're connecting to the internet:
Are you connecting via a wireless connection (Wi-Fi), or are you using a direct cable connection to your router?
Internet speeds over a direct cable connection (a Cat 5e or Cat 6 Ethernet/LAN cable) are generally much faster and reliable compared to wireless speed.
There are many factors that could affect your wireless performance; these factors do not affect cable connections.
Check if your computer's network card supports speeds over 100Mbps i.e. if it supports Gigabit speeds
Your computer's network card is the technology that allows it to access the internet. Older cards may limit your speeds of all devices on the same network. Follow these steps to check if this is causing the bottleneck on your PC:
Open Windows Task Manager (hotkey CTRL + SHIFT + ESC)
Under "Networking" tab, you can view either the wired connection (Local Area Connection) and wireless connection.
The maximum speed will be shown. This is the speed limit of the device.
Example below: LAN CAT6 = 1Gbps. Wireless 'n' = 144Mbps.
Description: The image above shows the speed of the connection on the PC for the wired and wireless connection.
You're also encouraged to try different computers for speed tests. Mobile devices (handphones, tablets) are not effective as most of them have a certain speed limit.
If you’ve been running speedtest results over Wi-Fi and are getting unsatisfactory results, try a wired speedtest from the PC to the modem.
If there is a big difference in your wireless and wired speedtest results, you may take some steps to improve your Wi-Fi performance.
Position your Wi-Fi router at a central, elevated spot (like the top of a shelf in the living room) so walls or other obstacles do not block its signal. Your router should also avoid sources of electrical interference such as microwaves, cordless phones, and TVs.
Check that both your router as well as your computer’s wireless network adapter supports 802.11ac, the latest Wi-Fi technology. Even a single device in the home running on an older Wi-Fi technology standard, such as 802.11g, can cause your router to lower it’s maximum speed to 10Mbps.
Update your router firmware. You can find the latest firmware on Asus official website here.
Invest in a more powerful router. A higher-end router, such as the MyRepublic Wi-Fi Halo, not only offers greater Wi-Fi signal coverage and better speeds overall — they also come with dual-band technology, allowing you to minimize any Wi-Fi signal interference by using the less occupied 5GHz frequency band.
Disable all firewalls or anti-virus programs (at least temporarily while you do testing)
Perform a fresh install of your web browser to get rid of any possible malicious software (malware) that might have gotten inside
Try connecting with a different web browser if you’ve only been using one
Remove any added equipment like home plugs, bridges or switches