A lot of Routers route traffic through the CPU and depending on your Router this will not allow you to get anywhere near 1Gbps. I'm not sure if this is the case for your without digging into more detail about your Routers you have tried. If I was you I would factory reset the ASUS RT-AX54HP and then try again with bare bone config. You might have enabled a setting on both of them such as Firewall, QoS, or something like that which makes traffic be routed through the CPU not ASIC forwarded.
Direct from NBN modem to ASUS router.
I also did a test and just plugged in my switch directly into the NBN modem and got full speeds (ie 942/47) via that route so yes, looks like the ASUS and GL routers are slowing the speeds down somehow. The GL is more surprising as it is a 2.5gb WAN port so I would expect it to be able to handle it better.
Yes, I tried three different ethernet cables unfortunately. I even tested using the cable that I knew gave me the 945/47 speeds when direct connected but it did not increase the ethernet speeds from connections coming from the ASUS router.
What is the house layout like, how far is the device from the router when you are doing these tests? Direct line of sight? 5ghz network and not 2.4ghz?
Weirdly I plugged the switch directly into the NBN Modem and it was nice and super fast (ie 900+/45+) so it looks like the ASUS and GL-MT3000 router BOTH capped my ethernet to be about 190/37.
I also did a double check of my MTU and did the old:
ping [google.com](http://google.com) -f -l 1462 etc thing to determine the BEST MTU and it was 1492 (1464 + 28) which was what my ASUS router already had it set for.
Also the cables have been tested and are all correct as these cables gave me the 945/47 speeds when direct connected to the NBN Modem.
Most likely hardware limits i would look into reviews of different routers maybe look for one with a 2.5gbps port as it should have a better cpu/etc, though.
Look up “buffer bloat” tests aswell iv had similar issues before.
Though thats primarily a secondary effect that kills your ping/speed when your connection is actually under real-life load i.e downloading something.
Just borrowed a friends old D-Link DSL-2900AL (which does both ADSL and NBN type connections) and in normal SWITCH mode, it gives my full 945/47 speeds but as soon as I logged into the router and set it up as PPPOE with my username etc, the ethernet connection dropped to 190/35.
Does anyone know if speed codes are put on PPPOE account logins or is it on the physical LINE? I'm thinking that someone is saying that my account is capped to 190/35 on my AGL account and this is driven by when I log in via PPPOE and my account details.
RESOLVED:
I changed my connection type from PPPOE on my ASUS router to the WAN connection type of 'Automatic IP' which to me is a fancy way of saying give me dynamic IP and I got 600/45 during the day. (I assume faster at night).
I have no idea why it was slowed down via my PPPOE connection but I have also cancelled my Static IP request as I no longer need it.
I hope other people who get this finds this helpful.
#Solved
Thanks but I had already set my QOS to 1000/50, but just changed to Bandwidth Limiter mode of 995/50 just in case for my PC and got the similar lower results of 170/26.
Set to 1492. I can retry at 1500 but I don't expect to see a jump from 180 to 945 sort of speeds though. :-(
Edit: I just tried changing it to 1500 but the max for my ASUS is 1492.
Yeah, I'll try to summarise what I ahve done (and thanks for helping out):
1. Tried different ethernet cables between the BNB modem and my two routers (nada)
2. MTU set to 1492
3. Both routers give off the same max WIRED speeds of \~190/35 which is why I think there is something strange here
4. Wireless is similar but not really caring to see the various wireless speeds as the WIRED speed is the better baseline test
5. Done firmware upgrades on both modems to make sure I had the latest versions
6. Made sure that only one thing was connected to both modems when I ran my Speedtests
7. Discovered that my AGL internet is behind a CGNAT so that explained why my port forwarding is not working and why my Wireguard server stopped as well. Spent many hours redoing it over and over again. Not sure if GCNAT is to blame but thought I'd throw it out there
8. My network topology (including ASUS and GL routers) is essentially 1Gbps which explains my 940-945Mbps cap on the AGL 1000/50 plan when direct connecting but does NOT explain why I then subsequently get consistent 190Mbps via my 1Gbps ethernet ports
9. Might think about playing with the currently Disabled PPPoE Relay option to see if it gets me a faster speed but unlikely
Does AGL use pppoe? If so it’s likely the routers are struggling to handle the cpu load for encapsulating the packets.
The CGNAT thing is not the issue. If it was you’d have the same speed issue on your direct connection.
7. You can ask for AGL to take you off CGNAT, if they ask why, just say it's for gaming.
PPPoE isn't the problem if AGL do use it, people just like to blame the old standard for "CPU overheads".
You know what you're doing, so, have you got a dual NIC on your PC to "share" the connection from NTD to the router via your PC?
Called this morning to get static IP for $7.50. Not sure if one off or monthly as I heard one off from the guy. Will take two business days for this to be provisioned.
Agree, I'm going insane trying to work it out. Somewhere on BOTH routers it is doing it in the same way. The ASUS router has the correct MTU setting of 1492 for my setting as well.
A lot of Routers route traffic through the CPU and depending on your Router this will not allow you to get anywhere near 1Gbps. I'm not sure if this is the case for your without digging into more detail about your Routers you have tried. If I was you I would factory reset the ASUS RT-AX54HP and then try again with bare bone config. You might have enabled a setting on both of them such as Firewall, QoS, or something like that which makes traffic be routed through the CPU not ASIC forwarded.
If you eliminate the router, and the speed shoots up, it is therefore the router. Try a unifi express? They can handle 1gbps and are reasonably cheap.
Yep. Normally I despise all-in-ones, but the UniFi Express is a surprisingly good little box.
Is Asus directly connected to the nbn box or using internal wiring?
Direct from NBN modem to ASUS router. I also did a test and just plugged in my switch directly into the NBN modem and got full speeds (ie 942/47) via that route so yes, looks like the ASUS and GL routers are slowing the speeds down somehow. The GL is more surprising as it is a 2.5gb WAN port so I would expect it to be able to handle it better.
I hate giving this advice because it's too simplistic, but try a different ethernet cable.
Yes, I tried three different ethernet cables unfortunately. I even tested using the cable that I knew gave me the 945/47 speeds when direct connected but it did not increase the ethernet speeds from connections coming from the ASUS router.
Have you done a factory reset on either of the routers?
Yes, done to both plus FW updated just in case.
What is the house layout like, how far is the device from the router when you are doing these tests? Direct line of sight? 5ghz network and not 2.4ghz?
Not using WIFI. This is all wired ethernet to minimise the possible failure points.
oh wow, the wired connections are stuck at 190Mbps? Maybe faulty cable? or defs a cat6?
Weirdly I plugged the switch directly into the NBN Modem and it was nice and super fast (ie 900+/45+) so it looks like the ASUS and GL-MT3000 router BOTH capped my ethernet to be about 190/37. I also did a double check of my MTU and did the old: ping [google.com](http://google.com) -f -l 1462 etc thing to determine the BEST MTU and it was 1492 (1464 + 28) which was what my ASUS router already had it set for. Also the cables have been tested and are all correct as these cables gave me the 945/47 speeds when direct connected to the NBN Modem.
Most likely hardware limits i would look into reviews of different routers maybe look for one with a 2.5gbps port as it should have a better cpu/etc, though. Look up “buffer bloat” tests aswell iv had similar issues before. Though thats primarily a secondary effect that kills your ping/speed when your connection is actually under real-life load i.e downloading something.
Just borrowed a friends old D-Link DSL-2900AL (which does both ADSL and NBN type connections) and in normal SWITCH mode, it gives my full 945/47 speeds but as soon as I logged into the router and set it up as PPPOE with my username etc, the ethernet connection dropped to 190/35. Does anyone know if speed codes are put on PPPOE account logins or is it on the physical LINE? I'm thinking that someone is saying that my account is capped to 190/35 on my AGL account and this is driven by when I log in via PPPOE and my account details.
RESOLVED: I changed my connection type from PPPOE on my ASUS router to the WAN connection type of 'Automatic IP' which to me is a fancy way of saying give me dynamic IP and I got 600/45 during the day. (I assume faster at night). I have no idea why it was slowed down via my PPPOE connection but I have also cancelled my Static IP request as I no longer need it. I hope other people who get this finds this helpful. #Solved
Setup QoS on the router, or set up a bandwidth limit of 995/50, it's the NBN policer.
Thanks but I had already set my QOS to 1000/50, but just changed to Bandwidth Limiter mode of 995/50 just in case for my PC and got the similar lower results of 170/26.
Oh, have you tried changing the MTU?
Set to 1492. I can retry at 1500 but I don't expect to see a jump from 180 to 945 sort of speeds though. :-( Edit: I just tried changing it to 1500 but the max for my ASUS is 1492.
I'm just throwing out ideas, you didn't say what you have tried, except the PC directly.
Yeah, I'll try to summarise what I ahve done (and thanks for helping out): 1. Tried different ethernet cables between the BNB modem and my two routers (nada) 2. MTU set to 1492 3. Both routers give off the same max WIRED speeds of \~190/35 which is why I think there is something strange here 4. Wireless is similar but not really caring to see the various wireless speeds as the WIRED speed is the better baseline test 5. Done firmware upgrades on both modems to make sure I had the latest versions 6. Made sure that only one thing was connected to both modems when I ran my Speedtests 7. Discovered that my AGL internet is behind a CGNAT so that explained why my port forwarding is not working and why my Wireguard server stopped as well. Spent many hours redoing it over and over again. Not sure if GCNAT is to blame but thought I'd throw it out there 8. My network topology (including ASUS and GL routers) is essentially 1Gbps which explains my 940-945Mbps cap on the AGL 1000/50 plan when direct connecting but does NOT explain why I then subsequently get consistent 190Mbps via my 1Gbps ethernet ports 9. Might think about playing with the currently Disabled PPPoE Relay option to see if it gets me a faster speed but unlikely
Does AGL use pppoe? If so it’s likely the routers are struggling to handle the cpu load for encapsulating the packets. The CGNAT thing is not the issue. If it was you’d have the same speed issue on your direct connection.
7. You can ask for AGL to take you off CGNAT, if they ask why, just say it's for gaming. PPPoE isn't the problem if AGL do use it, people just like to blame the old standard for "CPU overheads". You know what you're doing, so, have you got a dual NIC on your PC to "share" the connection from NTD to the router via your PC?
Called this morning to get static IP for $7.50. Not sure if one off or monthly as I heard one off from the guy. Will take two business days for this to be provisioned.
That can't be the problem, as the PC gets the full speeds currently. It has to be a setting on the router.
Agree, I'm going insane trying to work it out. Somewhere on BOTH routers it is doing it in the same way. The ASUS router has the correct MTU setting of 1492 for my setting as well.