Can't connect to Router

Yes my password is correct. My password contains letters and numbers only. If I type the incorrect password it will not get passed 0%. I have a RT-AC87U Router as said above in my post.

So please double check if the lamp connected to the router when connection fails.
If yes, please have a try with changing your router’s DNS server to instead of using automatically allocation?

How would I know if it is connected? Would it appear on my DHCP list? if so then it does not appear there. The DNS is already set to Please note I have said this above in my original thread already.

Yes, you can check it from DHCP list.

So there’s some problem when the lamp try to connect to the router. Please use another phone to setup a hotspots with 4G network and try connect the bulb to it.

Ok I’ll try that. But to get the issue with my router resolved, what can I do about that?

I tried it with another phones hotspot and I get the same issue. It does not pass 25%.

I still would like to get this resolved.

I have the very same issue with my ceiling light. Unfortunately the same things are constantly said check DNS, check password is correct. This is all stated as you have done but then Yeelight staff no longer reply back.

@kyleluna @Robbie

First of all, please check if the bulb connected to your router, you can check it form DHCP list.

As I have said before, It does not appear on my DHCP list. Also my wifi is on 2.4GHz with a WPA2-Personal.

Same here. It does not connect.

Might be related, i tried to connect ceiling light 650 to application - and experiened connection timeout (tried atleast 10 times).

I did following: logged in on some existing account (see my link for login/pw), paired the lamp there, update firmware. And after that i was able to register it under my own account.

Check the first post:

The lamp need connect to router, then bind the lamp to your account. The issue we encounter is the first step :sob:

@kyleluna @Robbie

I am not sure why the lamp can’t connect to your router, does the lamp in black list or is there some filter with your router?

I think I found out the problem. It took me a while, but the lamp (my white 1 version) does not connect properly to a wifi-connection greater than 2.4 GHz. You should connect your lamp to your 2.4 GHz network

i think this is why its cheaper than the philips hue !!

the pairing will never work with me !

unfortunately i bought 2 of these , and no one worked as advertised ! its just a regular light with nothing smart !

i hop that you fix this soon because i am now so mad !

This is a wifi based device, it is different with hue that it is based on zigbee.

  1. pease have a check if the bulb connect to your router.
  2. If yes, try change DNS of your router to and connect again.

What if ISP doesn’t allow me to change the dns server?

Which server do you select?

Try connect your ISP for help, why they block the domain of xiaomi cloud ( is responding okay to my computer but the bulb is not responding and failing to connect.

Pinging [] with 32 bytes of data:
Reply from bytes=32 time=332ms TTL=39
Reply from bytes=32 time=330ms TTL=39
Reply from bytes=32 time=324ms TTL=39
Reply from bytes=32 time=326ms TTL=39

Ping statistics for
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 324ms, Maximum = 332ms, Average = 328ms is domain of Mainland China server, so could you have a try with china server?