The wire cage method worked perfectly the 1st time - took 3 days.
Ours has been broody 3x in 3 months though -- and I gave up with the cage after a short while.
I'm at my wits end with her at this point and gave her her very own plastic temporary nestbox in the coop that she is happy to sit in all day and all night.
(I do make her go up on the roost at night by hand).
I hope ours snaps out of it because she isn't making eggs, and we need her to - good luck with yours too.