Ok then, still depend on crazy testing one by one.

The only annoying is strange hang on CDN waiting the reply from origin, may caused website's connection hang on HTTP2 and need a socket flush/cut.
Like DMZJ(comic website), using 1.1.1.1 or opera vpn works fine, but direct connect causing website's connection hang because of packet drop....
Also found out HEVC original quality pushed from Bilibili live(selected IP address, seem like limited to mainland only), not bad, but should have higher latency than H264 original file la.
AV1 some video have, but depend, hope Qualcomm improve in future, only MTK support AV1 HW decoding causing China video website slowing for implemented....
YouTube best, never care about how much mobile users will experience it, AV1 for most video on web version now, while MTK user keep getting AV1 on mobile client now.
Twitch should start testing this year, but still waiting for most users support AV1 after 5 years, even it is enough for decoding using 2 core of Desktop CPU with 1080p@60FPS.

Anyways, the faster the better, more bandwidth and patent money saved for video while also better experience for whole internet in future.
----

So far only Public Bank having strange connection issues in between Google DNS and DNS lookup, should be the SLD got issues, using 1.1.1.1 solved it.

And yes, it is also a issues for mainland one, they need special setup else it will having bad experience to oversea users.

The worst is Taobao client on Android, using own UCweb engine means it will fallback to build in DNS UDP(Not the latest Aliyun DNS TLS that lookup based on your IP address) and giving you the server's IP address at mainland instead of HK...
I got monitor what's going on.

Around 6.56 PM, the speed drop from full speed to 300kb/s only, so QoS kicked on around that time.

All oversea server, including CloudFlare, will get throttling around that time, so far the lowest is 100kb/s.
Did some testing

Here is my tested result.

When I have 60.50.x.x yesterday, Twitch give me HK/TW/JP CDN video server.
Then somehow UniFi kick me off and back on this midnight, so...
Today I have 115.134.x.x, Twitch give me the origin of Twitch which is Netherland...

The link that choose which server Twitch giving to you are https://usher.ttvnw.net/api/channel/hls/CHANNELNAME.m3u8, it is depend on your IP address that send to this API.
Tested, it need some skill to fake your IP address and client side signature.
---
After testing using Opera vpn at Asia 77.111.245.10, which is SG, Twitch are giving SG CDN server link to opera.
But, because of Twitch, they still sending you to HK CDN IP address because of, whatever they like, as long as it is Asia server...

So there is 3 solution for you.
1. PPPoE reconnect and switch in between IP pool, like me is 60.50 to get the partial correct address which is ASIA IP and HK/TW/JP CDN server.
2. Using Opera VPN, turn on the VPN and switch VPN to SG, then turn off the VPN if you feel unsafe, you will stay using Asia CDN server until you reload the page without VPN on, will lag after quality switched.
Never let it switch the quality(including switch to background), else the magic will gone.

If lag again, turn back on VPN, reload, video loaded then turn off.

3. Just use Opera VPN, switch it to Asia each time you use it, then fine.
Solution 1 is the best if you scare of Opera VPN steal account, for me, I just use it without login, then opera vpn - Asia, done.

watched few livestream on Twitch no issue..

maybe is certain ip range got issue.
depend which provider. SG got two provider using PCCW direct to CT/CU their latency still ok. Just avoid Singtel that all.
now i using those with China optimized route for livestreams.

if use normal non optimized route totally cant watch.

d1--ov-gotcha05.bilivideo.com
58.26.x.x is MY TM, 202.122.x.x is MY Maxis, 163.171.x.x is SG cdnetworks(starhub) ok then.

Depend on Bilibili, 600 TTL expired then it will give new IP address to Google DNS, 1 of them will lag, but reload fixed it, unsure which one.

Also unsure on mobile client, lazy to do analysis using local DNS/VPN apk.
But mobile client, it is using another subdomain/server, 3 years ago it is laggy on web, but no issues on mobile app.
Good then, remember, speedtest to know it is cable/fiber or not.

If speedtest show strange, then yes it is mostly local issues not TM side issues.
And yes, faced signal too strong, even Huawei modem can't hold it and keep kicking PPPoE session out, and funny enough a reboot of router fixed it for 5 mins.

cant watch twitch smoothly for fews day already.

Around 6.56 PM, the speed drop from full speed to 300kb/s only, so QoS kicked on around that time.

All oversea server, including CloudFlare, will get throttling around that time, so far the lowest is 100kb/s.
Did some testing

Here is my tested result.

Ok then, still depend on crazy testing one by one.

The only annoying is strange hang on CDN waiting the reply from origin, may caused website's connection hang on HTTP2 and need a socket flush/cut.
Like DMZJ(comic website), using 1.1.1.1 or opera vpn works fine, but direct connect causing website's connection hang because of packet drop....
Also found out HEVC original quality pushed from Bilibili live(selected IP address, seem like limited to mainland only), not bad, but should have higher latency than H264 original file la.
AV1 some video have, but depend, hope Qualcomm improve in future, only MTK support AV1 HW decoding causing China video website slowing for implemented....
YouTube best, never care about how much mobile users will experience it, AV1 for most video on web version now, while MTK user keep getting AV1 on mobile client now.
Twitch should start testing this year, but still waiting for most users support AV1 after 5 years, even it is enough for decoding using 2 core of Desktop CPU with 1080p@60FPS.

How do you check if that's the case?

Are you guys having any issues with Twitter right now? All of sudden the image like this.

Anyone try plugin an external 2.5 HD to the USB router ? how do safely remove drive ?

How do you check if that's the case?
I ran speedtest and it seems fine. But I'm still getting packet losses and I can't even watch 360p on Twitch without it lagging.

Want to help my friend ask about the wifi 6 router for 300mbps and about.
He currently with 500mbps and still using old wifi 5 router(TP-link model) . Can he request to change to wifi 6 router for free?

Are you guys having any issues with Twitter right now? All of sudden the image like this.

no problem on my end. Try reboot your router and your phone(To clear the dns cache).

What dns are you using ?

Google dns

Are you guys having any issues with Twitter right now? All of sudden the image like this.

Just added smokeping monitoring to all worldwide Twitch Server. This should give a rough overview of the connection between Unifi and Twitch.
http://smokeping.mywebping.com/smokeping/?target=Twitch