Hmmm very interesting, I am a new Maxis 800 subscriber, and I've been experiencing these frequent disconnects. On all devices wired and wifi.

Maxis tech support claims they do not always detect the disconnects on their end.

So looks like the free TP Link router is crap and I have to change it?

Yes, please change the original maxis provided router to better one
Since my wife keep on complain mobile legend keep on disconnecting or unstable example suddenly high ping that after like 5~10 sec go back normal
but hero die already lol
So after like few months research that online check, talk to maxis technician few times on different person, TP-link router is SUCKS!

End up im using ASUS RT-AC86U router ( china version ) lol
You may refer below link if u decided to change
China version actually no different with local one in term of router, only issue is on warranty part
china version need to send back to seller that takes time maybe longer than you send back local manufacturer for warranty
but price different around 200+ so u can decide by urself
https://shopee.com.my/product/53714761/1359873119

This is the additional fan for cooling router as after research some people comment that after few hours will get hot, thats not a good thing so just add on another RM31
https://shopee.com.my/product/147376949/2338458207

after changed my router, speed stable, as fast as the speed show like speed net cause before that tp-link even i check speed net for my internet it can goes up to 4xx mbps but due to lousy router you will feel unstable network when u go on gaming and so on internet stuff

hope this can help u guys

[UPDATE] :
this issue solve after change to another router which i bought my self (asus brand).
suggest if anyone is facing similar issue, swap the router and test.
mine is confirm router issue. bought a asus router and issue gone.

Maxis provided router is confirm rubbish tier hardware.

BUT STILL, a customer should not have to go through all these : back & forth calling Maxis support + self research + self buy router, seriously, are Maxis expecting everyone to go and buy their own router???
TLDR:

# Maxis fiber internet connection keep on disconnected randomly for no reason.
# this internet dc issue can be notice on both WIFI and LAN connected device.
# when change back to unifi router and modem, all is good.
# tried every thing to solve maxis random dc issue, no result.
# suspect ISP (maxis) or their provided hardware is the root cause.
Long ver:

hi all ,anyone experiencing random internet lost when using Maxis Fiber broadband ?

i switch from unifi 30m to maxis 30m, initially some hiccups happen but was fixed after calling the Maxis tech (thanks maxis tech guys). but then i notice the internet is not stable at all since it will lost internet randomly.

this is frustrating since even thou it happen randomly, but it happen in a very consistent fasion.

this kind of internet lost is very noticeable, especially during online game session. the entire game session will lost when this happen, and for most cases not able to reconnect.

same thing when browsing website. when click to open a site, you will notice the site is not loading at all, and at that moment, when check the task bar at the lower right, you will notice the red "X" at the network icon which indicate the internet is lost. the internet will recover after a few second.

initially suspect the LAN cable or Network adapter is at fault, but this is not the case for my side because when the internet is lost, it happen at both devices that connect to WIFI and LAN device. i know the internet is lost at the device that connect to wifi as well cuz i install app to do ping at my android device.

when the internet is lost, both LAN and WIFI connected device will get ping error "General failure." or "Request timed out.", this will happen for like a few second, then the internet will be back again.

These never happen when using Unifi provided hardware.

true enough, when revert back to Unifi hardware, all is good and not a single "General failure" or time out error from the ping result (LAN connected PC), WiFi wise very little packet lost, way lesser when compare to the time connected to Maxis. hence the entire issue pointing back to either the ISP (Maxis) which i have no idea what happen over there, or their provided hardware (modem or router) have some kind of serious issue.

i fully aware that my area's intra is not that great(old flat), hence im not even expecting full 30mbps speed. But heck, constant internet disconnect is a big no no for me, even if Im not using the internet for gaming.

anyone have any kind of solution on this ? i seriously doubt change to a better router will help.
do let me know if any of you have solution for this. thanks in advance.

i did call the Maxis SC and get some tech support for this but their solution not really solving the internet lost issue. will keep this maxis for another few day for testing purpose, mostly might end up returning it due to the constant random internet lost, which is a shame since Maxis offer better download and upload speed at a lower price. 

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This happen to me right now. What should i need from customer service if i buy router myself?

Pppoe password? Or others?

Just PPPoE ID and Password

Usually can look around in router and extra it from there