R7000 on tomato 3.5-140 problem with ipv6

Now I the stock netgrear firmware I could get ipv6 by setting to auto detect. I wish I wrote down the setting.

I have switch to the newest advanced tomato due to the stock netgrear would freeze a lot or loose 5 ghz of slow internet.

So far tomato works great but would like ipv6 to work like it did. I was able to follow the firmware change pretty easy but also did a search for my isssue. The problem is I could not follow what the heck they were talking about .

So if someone has gotten this to work could you please send screen shot of how you did it. 

Thanks for all replys