.......no comment from me....


Hmm.....does this model has support for additional 5Ghz DFS channels?
Revision A1 seem to support DFS, I can't be certain about this, plus I have no idea what hardware revision of DIR878 being sold in Malaysia.

At first, I was like , after reading, I am like

This stuff is way above my basic networking knowledge.
To begin with, I don't know how to pull config files off vlan400 (config-vlan?)
Plus, isn't there hidden or disabled WebGUI somewhere in the 240g-T?

Conclusion, I give up on using ONU LAN ports........I shall buy a cheap gigabit network switch instead......

Not enough LAN ports for upcoming turbo.
Current TPLink C1200 LAN ports are fully utilized.....3 LAN ports for my desktop PCs + 1 LAN ports for hypptv.
Currently sharing unifi bill with neighbours and they are using wifi to connect.
Two neighbours are requesting me to pull CAT5e cables to their house (They gonna buy two 50 metres CAT5e cables and new routers as AP) once my account got turbo-ed.

Change your speedtest server.
Webe server is one of the worst server for speed testing.

If possible, test with Telekom Malaysia server, just search for Kuala Lumpur and TM server will pop out.

.........strange indeed....... LAN also the same?

Otherwise, your area fiber contention ratio might be very high...... , but your ping value is fine, thus* there is no way it is contention issue.

This post has been edited by JohnLai: Sep 12 2018, 08:23 PM

Please use RGX 4400 and stop using asus RT-N12BHP B1........

You wanna know why I suggest you to switch back to RGX4400?

Aside from RGX4400 3dbi antenna (your asus RT-N12HP B1 has 9dbi antenna which might be useless if your house is 'small', small is a subjective matter, dont feel insulted over it.) ........, RGX4400 hardware is way better and more powerful compared to your asus RT-N12BHP B1.

RGX4400 has better CPU, more RAM, gigabit ports etc than asus RT-N12HP B1.

edit:

https://wikidevi.com/wiki/ASUS_RT-N12HP_B1 = RT-N12HP B1 hardware
VS
https://forum.lowyat.net/topic/3994248/ = RGX4400


Why high dbi antenna is pointless :



Notice the coverage problem?



EDIT2: Not much info for you samsung j7 pro wifi chip. Let assume the worst case where it has single spatial stream. Assume it will connect at 433Mbps at 5ghz band 80Mhz channel width. (if only single spatial stream....this mean your phone 2.4ghz band 40Mhz channel width only connect at 150Mbps)
Factor in Wifi protocol overhead 60%.......The most you can get for 802.11AC 5.0ghz band 80Mhz = around 260Mbps?

EDIT3:Some website claims j7 pro has 2x2:2, so maybe it has 2 spatial streams? Just tell us your phone 5Ghz link speed to RGX4400....It is faster this way.

EDIT4: Do remember to restart the ONU once a while.....

This post has been edited by JohnLai: Sep 12 2018, 10:15 PM

RT-N12HP_B1 is the issue. WAN port only 100Mbps. What do you expect?

SilentVampire, I propose RT-N12HP_B1 to be put at first page (top most) this 'expensive' router doesn't support 300 - 800Mbps turbo speed.

Almost there.....

Are you using TM speedtest server?

http://speedtest.tm.com.my/
Use this official TM speedtest site.

Test using your Intel 1219-v gigabit LAN.

Saw your edited post

One step you have to do. This is for checking if your BTU port is misconfigured....

If you connect your BTU directly to your Intel 1219-v gigabit LAN, what is the LAN link speed?

Is it 1Gbps?

Sample images;


or



This post has been edited by JohnLai: Sep 12 2018, 11:28 PM

Normally, there is a LAN cable connecting from I240G (port 1) to the RGX4400.

Connect that particular LAN cable from I240G (port 1) to Intel 1219-V.

Question: You sure the LAN cable is CAT5 or CAT5e?

-.-....oh...that....you need to orient the router vertically and let the TM logo facing front (facing the area where you want to focus the signal)

Cause the both 2.4Ghz and 5Ghz antenna are printed on the circuit board itself.
https://en.wikipedia.org/wiki/Inverted-F_antenna

Since you mentioned your cable is cat5 and not cat5e, we can skip that LAN link speed check. Make sure you are using CAT5e cable from I240G to RGX4400 too. Same with LAN cable from RGX4400 to PC's Intel 1219-V

Not much we can do now.


Can you at least ensure CAT5e cable is being used to connect I240G and RGX4400 now?
Let start with fixing your 5Ghz signal first. First, set both 2.4ghz and 5.0ghz wifi channel width to 40Mhz and 80Mhz respectively.
Orient your RGX4400 vertically with the TM logo side facing the direction you wanna focus.
Speedtest your 5ghz smartphone again using TM speedtest server.

edit: make sure transmit power is maxed.

This post has been edited by JohnLai: Sep 12 2018, 11:52 PM

Max transmit power too.....

........-.-.......Just a quick check, how many 5Ghz hotspot detected on your area using the phone through wifi analyzer?

Hmm.....can you change 5ghz channel to 56, 104, 124,136 and 149? Speedtest again with these different channels.
Check if changing to different 5ghz channel make any difference or not.



Previous horizontal orientation result:
Speed test on Samsung J7 Pro: 60.0 Mbps, upload: 93.5 Mbps ( 5.0 Ghz )

After vertical orientation result:
Download 89.97Mbps , Upload 57Mbps (5.0ghz)

Strange indeed....I wonder why the result kinda 'reversed'

Aiyoyo.....try lah...change to different 5ghz channels......directly try channel 149........

.....I am starting to think maybe your phone has bad signal reception issue. Faulty phone antenna or hardware? Do you have any other phone with 802.11AC wifi chip?
Impossible so close to the router and can't detect the 5ghz signal.......

That the strange part.
He posted a picture of the distance between his phone and router before 5ghz signal totally vanish here https://forum.lowyat.net/uploads/attach-74/...-1536766044.jpg

The distance is around 2 - 3 meters. Kinda impossible for signal loss to happen at that distance even for 5ghz.


Do you use any sort of phone cover?
A metal in the phone cover will heavily attenuate or reflect the signal as well.

Try to remove the phone cover......

I agree with your assesment on the bad signal.

He should get at least -48dBm or better -45 dBm at that distance for 5Ghz. (The closer to 0 dBm, the better signal reception)

I propose him to remove any phone cover first.......