Changed the password of my router and reset them to factory

So as the title says I did that and all of my smart devices got unsynchronized so I had to connect them back again but my two led color lambs from Xiaomi and my led strip doesn’t connect when I try to connect them it says connection timed out or connected successfully but none of them shows up on the dashboard. I did reset them . I did logout and login in back again . Sometimes it says error 1101 , but that is happening after I got the connected successfully screen.

I need some help here

Could you please provider your xiaomi account and server you selected?