How do I add other devices to a speaker group?

[devz]

I just got a second Hub (2nd gen) and decided to try the speaker group.

I have a Gen 1 Hub, a Gen 2 Hub and a Home Mini. When I try to set up a speaker group, I can only add 1. They're all on the same wifi network.

If I set up the speaker group with the Gen 1 Hub, it doesn't show any of the others to add. Same with whichever one I use to set up a speaker group.

Any ideas what I might be doing wrong? Thanks! 

[KevinDelorme · Accepted solution]

I ve finally red something usefull in another forum and someone told to try and reboot modem, router and cellphone.. and then if doesnt work  clear the google home app  cache

I didnt even have to reboot anything..just cleared the cache and it worked     i can  now see the speakers on my "create a group" page

[devz]

That seems to have worked! Thank you!