Currently I am on TM Unifi RM129 plan, with 100Mbps.
Current wifi router is DLINK DIR-850L (Black short cylinder shape)
Double storey terrace - 20' x 60'
Wifi router locate at ground floor TV cabinet

My usage as below:
1. Stock trading
2. Normal browsing (Facebook / Taobao / Email)
3. Working at home (VPN / Cloud storage)
4. FM Radio Streaming
5. Youtube Music Streaming
6. TV Box HD Video Streaming (Occasionally)
7. 2 persons living in the premise

Current internet speed: Happy, no issue, satisfy
Current wifi router: Not happy, sometimes disconnect without reasons.

Sometime I share screen using laptop on my Smart TV:
1. Laptop on 5Ghz wifi frequency
2. Smart TV on Wired LAN

<Question 1>
Contract has just ended and planning the next steps:
1. To continue existing plan without renewing contract?
2. To renew contract with existing plan (maybe to get free wifi router)?
3. To downgrade to RM89 plan, with 30Mbps?

<Question 2>
Previously I was using 2.4Ghz wifi signal to screen sharing, very laggy and keep DC.
Then I changed to 5Ghz, it works greater, but I feel like a bit of delay. Especially when I moving my mouse pointer, very hard to select object precisely on TV due to pointer movement delay.
Disconnection of share screen happen occasionally, maybe 5%~10% of chance.
Current wifi router DLINK DIR-850L is running its 5Ghz at AC1200, if I upgrade to any router that greater than AC1200, let say AC1750, do you think it will solve this problem?

<Question 3>
My 2nd floor wifi signal very poor even using 2.4Ghz signal. However, I rectified it by adding additional WiFI extender (DLink DAP-1330).
Current wifi router DLINK DIR-850L is running its 2.4Ghz at 300Mpbs. If I upgrade any router that greater than 300Mbps, let say 450Mbps or 600Mbps, is the wireless range will be improve, or still remain?
Considering I do not wish to use wireless extender due to energy saving.
(In this case, wireless range is the key concern, speed not important)

<Question 4>
If I upgrade router myself, I will prefer ASUS, but which model is suit my usage but not overkill?
a) RT-AC86U
b) RT-AC66U
c) RT-AC68U
d) any other model?

This post has been edited by zhi1437: Dec 28 2019, 04:30 PM

My 100Mbps @ RM129 contract just ended.

I was attempting to downgrade to 30Mbps @ RM89 via "myunifi", "live chat" and call "100", non of these method works as they told me 30Mbps can only sign up via TMpoint or TM agent.

Then I immediately visited the nearest TMpoint and request for downgrade to 30Mbps.
I simply ask them "is there any other speed option that I can downgrade?"
Mana tahu they told me there have 50Mbps package at RM99/month, with 24 months contract.

Then without thinking much, I straight away ask them downgrade to 50Mbps @ RM99. Still pending their email confirmation and downgrade process.

Hope this message helps you guys.