Why WiFi in NUS sometimes can use sometimes cannot use?

NUS sent us an email today including an article "Why is NUS WiFi slow at times?". While this title was interesting, we found the article written too 'chim'ly and was a pain to read. Being the helpful resource we are, we will simplify the article for you.

Original article : http://comcen.nus.edu.sg/technus/it_spotlight/nusnet-wifi-service/?utm_source=TechNUS+May+2013&utm_medium=email&utm_content=html&utm_campaign=TechNUS+newsletter

Intro - Bunch of useless stuff leading up to the question -

Why WiFi in NUS sometimes can use sometimes cannot use?

1. Wifi Coverage 
Wireless technology means some areas are blind spots, the signal cannot reach. If you think anywhere on NUS always blind spot then complain to IT Care.

2. Wifi Capacity
Sometimes your internet lag cos some idiots watching HD ... shows and downloading... things. Bandwidth is fixed, so they kope your bandwidth with that of course your internet lag!

Imagine Transformer sit on the road, then cars cannot drive past. same thing.

3) Limited Radio Frequency Channels
You may say, why not supply more wireless internet power so everyone can surf happily? The answer is... Physics say cannot la. Will jam and interfere. There is a limit to how much internet power goes around in one area.

4) Wifi infrastructure
We need to pay professors $11k+ a month (source: page 55), no money to have better infrastructure for WiFi. Sorry ah. When got problem don't worry we will solve it asap.

Conclusion
Stop complaining about slow NUS WiFi. But if really really got problem then contact IT Care.