Guys, need some suggestion here...

Yesterday TM contractor came and replace the fiber optic cable for my unifi and finally I'm able to use my unifi again...

Before they leave, I've tested the speed using my smartphone via wifi, under 2.4g it reaches around 70-80mbps, and 5g it reaches 100mbps...

That was sitting in front of my router though... But when I'm using my laptop on second floor, I run speed test from my laptop using 2.4g and the speed only runs around 20mbps max.... I'm staying in a 2sty house with about 2500sf built up...

I did some study, if I opt for wifi range extender, it has to be on the same power point line as my router in order to get it done, right?

What about if I buy another router and use it as an Access Point on second floor? If this is the better solution, any recommended AP or router that can fully optimize the Unifi 100mb speed on the entire 2nd floor?
Suggestion & advice are much appreciated from expert here~

TQVM~

awwww snappppp 

Guys, need some suggestion here...
Yesterday TM contractor came and replace the fiber optic cable for my unifi and finally I'm able to use my unifi again...
Before they leave, I've tested the speed using my smartphone via wifi, under 2.4g it reaches around 70-80mbps, and 5g it reaches 100mbps...
That was sitting in front of my router though... But when I'm using my laptop on second floor, I run speed test from my laptop using 2.4g and the speed only runs around 20mbps max.... I'm staying in a 2sty house with about 2500sf built up...
I did some study, if I opt for wifi range extender, it has to be on the same power point line as my router in order to get it done, right?
What about if I buy another router and use it as an Access Point on second floor? If this is the better solution, any recommended AP or router that can fully optimize the Unifi 100mb speed on the entire 2nd floor?
Suggestion & advice are much appreciated from expert here~
TQVM~

Exactly same scenario with me for now.
Like my lappy, it did not support 5GHz bandwidth. So, via 2.4Ghz it sucks tho.
Worst is the Unifi modem and router need to be close to TV.
Waiting for expert reply also huhu

typical 2 storey house, it is not difficult to get good wifi speed.
for unifi 100mbps, can get even 105/110mbps.
just need to spend some money on a good router and adaptors for pc/laptops; use 5ghz.

this "bad wifi in my house, what can i do?" question has been trashed to death with many recent threads below.
new comments if any, will likely be just rinse n repeat, probably from the same people:

Unifi standard download speed for 100mb
https://forum.lowyat.net/topic/4551990
2.4Ghz and 5Ghz connection, at different speed
https://forum.lowyat.net/topic/4195926
Need some advice on extending internet coverage, Condo,<2,000SqFt, thick walls
https://forum.lowyat.net/topic/4549805
Router replacement for unifi 100mbps, Router replacement
https://forum.lowyat.net/topic/4548858
Router recommendation, Need high gain and stable
https://forum.lowyat.net/topic/4538857
Best router for Maxis Fibre 30mbps, Best router for Maxis Fibre 30mbps (Home Networking)
https://forum.lowyat.net/topic/4547385
Router Recommendation
https://forum.lowyat.net/topic/4519582
wta unifi wifi extend, suggestion (Unifi)
https://forum.lowyat.net/topic/4514561
Need help for a router recommendation, Need a new router (Home Networking)
https://forum.lowyat.net/topic/4514835/+40#bottom
What's the disadvantage of using old dlink router, but subscribed to 50mb package
https://forum.lowyat.net/topic/4516416

Hi guys I just bought ASUS RT-AC86U but when I setup the internet connection under PPPoe. There is no special requirement from isp box to tick. How can I connect to uniFi if that’s the case?

Guys, need some suggestion here...

Yesterday TM contractor came and replace the fiber optic cable for my unifi and finally I'm able to use my unifi again...

Before they leave, I've tested the speed using my smartphone via wifi, under 2.4g it reaches around 70-80mbps, and 5g it reaches 100mbps...

That was sitting in front of my router though... But when I'm using my laptop on second floor, I run speed test from my laptop using 2.4g and the speed only runs around 20mbps max.... I'm staying in a 2sty house with about 2500sf built up...

I did some study, if I opt for wifi range extender, it has to be on the same power point line as my router in order to get it done, right?

What about if I buy another router and use it as an Access Point on second floor? If this is the better solution, any recommended AP or router that can fully optimize the Unifi 100mb speed on the entire 2nd floor?
Suggestion & advice are much appreciated from expert here~

TQVM~

Exactly same scenario with me for now.

Like my lappy, it did not support 5GHz bandwidth. So, via 2.4Ghz it sucks tho.

Worst is the Unifi modem and router need to be close to TV.

Waiting for expert reply also huhu

2.4GHz is full of interference and congestion. Use 5GHz. If you want to use AP, make sure it’s connected directly to the router via Ethernet and not wireless. Asus router are good to be used as AP in their AP mode. If you have any other questions, just read and research based on the threads given by bro AVFAN.

I juz upgrade to 100mbps unifi....
Got sylinder modem....
When i want change back to previous modem which is tp link archer c1200...no internet connection...
Put back sylinder modem also no internet connection....
Can anyone help me...

Ensure power are on for both BTU and router.
Check your cables. BTU port 1 to router's wan port.

Izzit normal auth no light

I was about to ask this, Access Point must be connected via Ethernet cable only? Cannot be done over wifi?

I went to consult one of my friend, he recommend me to relocate my router to a higher location and more towards the centre of my house in order to get a better signal range and speed. With this setup, I need to hang my router near to the ceiling and need to have a longer RJ45 cable. Any comment on this setup? I personally feel a bit not eye pleasant, but still acceptable if the outcome is good...

Btw, I'm using the TP LINK AC1200 provided by TM, and it is sitting on the tv cabinet level...

Both ok already....but still no connection

Finally completed the 100Mb upgrade today. Thought TM gonna change modem but gave me a new archer ac1200 router instead. 🤔

Both ok already....but still no connection

You can but not recommended. Ethernet cable is better than wifi especially for your house. Lol, your friend is half right. Center of your house is right, but higher location is BS. You need to get a good router, and for your case, an enterprise router with multiple WIRED APs is much better than a single router.