I have to differ.
I don't recall having much issues with IPv6 on UniFi previously (since 5Mbps days, then 10Mbps) 
No issues on TIME now too.

All my supported end devices have global IPv6 addresses, been running this for many years.

I usually use this to test IPv6 connectivity, unless there's any major issues, it's 10/10.
https://test-ipv6.com/

On Tests Run tab,
Test with IPv4 DNS record   
ok (1.032s) using ipv4
Test with IPv6 DNS record   
ok (0.820s) using ipv6
Test with Dual Stack DNS record   
ok (0.813s) using ipv6
Test for Dual Stack DNS and large packet   
ok (0.333s) using ipv6
Test IPv6 large packet   
ok (2.110s) using ipv6
Test if your ISP's DNS server uses IPv6   
ok (1.390s) using ipv6
Find IPv4 Service Provider   
ok (1.091s) using ipv4 ASN 9930
Find IPv6 Service Provider   
ok (0.929s) using ipv6 ASN 9930
Other IPv6 test sites,
https://ipv6-test.com/    <- I get 19/20 on this, because there's no reverse DNS record.
https://ipv6test.google.com/

My unifi dream machine 82 after reboot and reaching 85 after a while, still working fine without any external fan.. Dunno how correct this is.. But than can feel the heat when touching the router. Sell it already. Now waiting for RB5009.

I believe the 45-55 should be fine. They even tested the router for 60 ambient.. For me under 70 is still ok.. 80 maybe need cooling.

I have to differ.
I don't recall having much issues with IPv6 on UniFi previously (since 5Mbps days, then 10Mbps) 
No issues on TIME now too.

All my supported end devices have global IPv6 addresses, been running this for many years.

I usually use this to test IPv6 connectivity, unless there's any major issues, it's 10/10.
https://test-ipv6.com/

On Tests Run tab,
Test with IPv4 DNS record   
ok (1.032s) using ipv4
Test with IPv6 DNS record   
ok (0.820s) using ipv6
Test with Dual Stack DNS record   
ok (0.813s) using ipv6
Test for Dual Stack DNS and large packet   
ok (0.333s) using ipv6
Test IPv6 large packet   
ok (2.110s) using ipv6
Test if your ISP's DNS server uses IPv6   
ok (1.390s) using ipv6
Find IPv4 Service Provider   
ok (1.091s) using ipv4 ASN 9930
Find IPv6 Service Provider   
ok (0.929s) using ipv6 ASN 9930
Other IPv6 test sites,
https://ipv6-test.com/    <- I get 19/20 on this, because there's no reverse DNS record.
https://ipv6test.google.com/

are unifi ipv6's down in certain area? everything bound but no ipv6 when doing test

btw, just upgrade to 7.2.3

no problem on my end-Johor.
http://smokeping.mywebping.com/smokeping/?target=IPv6

Weird.. im at Gombak Setia. Before balik kampung everything ok. Turn On everything, all bound but no IPv6 while doing all test.

Heres some screenshot.. hope someone could help if my setup are wrong..

Did you set anything on the MTU? If not,set the MTU to 1480 on the ND.Im running the same hardware/software as yours,minus the only snapshot missing there is the neighbor discovery.

Previous working setup is no MTU setup. Already set to 1480 and 1280 and not working also. Asking TM (socmed/livechat) still no answer given.

Set the MTU to 1480 on ND and on the DHCP client,add default route option to NO.

Yes thank you so much! Solved! YOU the man. Thank you so much again.

Selamat Hari Raya Aidilfitri, Maaf Zahir & Batin.

The v7 routeros automatically added default route for pppoe both ipv4 and ipv6. When you tick the default route in ipv6 dhcp client it will confuse which route. Idk this is a bug or feature.

Anybody using CRS as access switch and CCR as core?

Thinking instead of using cisco switches , use mikrotik for SME 

Finally got my RB5009 up and running on Maxis Home Fiber (Telekom Infra). Ipv6 is also working. This is my 1st Mikrotik that I configured from scratch after learning about it at work. It has been educational, and I love the fact that I have the options to control my internal network.

I have successfully adding 2nd IPv6 Subnet, since our ISP refuse to give atleast /60, we do NAT6 in second subnet
...

I have successfully adding 2nd IPv6 Subnet, since our ISP refuse to give atleast /60, we do NAT6 in second subnet





This what I do

IPv6 ➡ Pool


IPv6 ➡ Address ➡ ➕


IPv6 ➡ Firewall ➡ NAT ➡ ➕





Only works in ROS7+
Windows and browser refuse to using fc00::/7 ULA Space, we had to break IANA IPv6 Assignment because of our ISP mistake, just break it
IPv6 NAT will break P2P, good firewall layer to protect IoT, VPN Users, etc...

I just found out that, when Metric/Distance same Value, Windows will choose lowest IP Address Number, my plan to use funny address like 2000:dead:cafe:b00b::/64, I choose 2000::/64 because is the lowest value valid

More details I put on my blog here:
https://www.hitoha.moe/second-ipv6-subnet-v...os-7-using-nat/