High latency observed on my end. But so far not having issue.

WTF?
If 100M-1G plan all going to CGNAT confirm have congestion issue...
I don't think the gateway can cope with it.

This post has been edited by go626201: May 1 2025, 09:23 PM

Do you mind to share your speedtest result and router status screenshot about your wan IP (router page)?

I thought you said you are using 1G plan,and unifi CGNAT your network?

Yours picture show no CGNAT by TM.
Double NAT is on your own network.

Luckily, CGNAT has not yet been confirmed for plans above 500Mbps. Otherwise, we can foresee serious lag issues on the unifi network the moment CGNAT is implemented.

Most heavy users are likely on the 1Gbps or 2Gbps plans, so when the time comes, it’s very likely that networks in some states will suffer from heavy nighttime congestion.

Unless TM deploys more CGNAT gateways to handle the additional load, the performance impact could be significant.

Should be revise in 2026.

Ask the technician to report to upper level team.
I have similar issue in Jan/Feb 25 after 1weeks FSU,and serious latency spikes while utilize more than 200mbps of upload speed. (unifi V42 and mikrotik thread got history about this issue)
The technician came and cant resolve for me,so he suggest he will report back to TM HQ,and after few days later issue gone.

Something wrong with the TM system,they can fix from their end,as long as the technican using the device speedtest and hit the max speed.
Most likely issue is not on your end.

And please double confirm with the technican team to not charge for this visit,as this is not user faults.
I was charged with RM53 about the visit,but i report again,and they did rebate at the next month.

Maybe try to backup config and reset the hap ax3 with clear config to see difference?

This post has been edited by go626201: May 10 2025, 01:32 PM

Emm i think TM screw up again...
Uploading file to GoogleDrive causing latency spikes... (Not even hit 400mbps upload)
SAME issue happens in Feb...

Better buy newer hardware for futureproof,since you are not using it for 1-2years only.
Should be at least enough power for 4-5years.
RB5009 is the best choice for mikrotik home usage.

Edited:
That 2.5G LAN 1 port is useful if using 1G/2G plan.

This post has been edited by go626201: May 12 2025, 11:26 PM

Looks like that occurs almost similar to my 1G upgrade in Jan/Feb.
Randomly Disconnection.

I don't think TM is optimizing with Skyworth GN630V 2.5G,as i still facing randomly high latency or low packet loss issue with uploading file,even without hitting the max upload speed.
(more than 200mbps upload or so might have the issue)

Sad my area still cant set 1492 MTU. (AC: ibse02.jhb)

Few year already.

But the performance might still be affect by the congestion on the CGNAT gateway?
Because It looks like some users with cgnat will having lower qos compare to higher speed plan user.
IIRC someone with unifi CGNAT said before the latency might get higher depends on the ip range.

If you only using 800Mbps plan then this BTU is okay.
If you are using 1G or 2G plan,then your maximum speed will be 940+-Mbps.
If u not need the extra 80-100Mbps,then you can use this BTU with your router.

1G plan can hit around 1040M DL/520M UP with maximum speedtest.

The response latency is abit high. (Probe Method: DNS Resolve, Not Ping)

208.67.222.222


208.67.220.220

Google DNS is most popular with anycast server that hosted on almost worldwide GCP,and routing is 99.99% good enough except in China and some restricted country.
So normally the most recommended for 99% people will be Google DNS.

But as i am using SmartDNS(pymumu/smartdns) with Adguard-home at home,i am resolving DNS with 10+ DNS resolver at the same time for the best response server ip.
Sometimes specific DNS server might give better ip for the service.

Problem Started on 24 June 2025.

Unifi to Imgur with 70+% packet loss.


Does anyone know which submarine cable down causing the issue? (Looks like TM switch the routing on 9 June 2025)

This post has been edited by go626201: Jul 14 2025, 09:29 PM

From the smokeping showing it will occurs at 6pm-11.30pm every night.
And the latency get higher after 9 June 2025.