WNDR3700v4 5GHz wifi

Hello

Is this router supported by LEDE? Does someone even test this amazing OS on it?
I use this router and when i switched from 17.01.1 to 17.01.4 i lost 5 GHZ WIFI. Then i installed my compiled version with kernel 4.9.67 and 5 GHZ wifi worked well.
Today i needed some package which gave me an error because of the kernel. So i recompiled with latest 4.9.70 kernel version installed it and the package installed but i lost 5 GHZ WIFI AGAIN!!!

If 5 GHZ WiFi got fixed once why does it keep breaking and fixing again and again?

https://lede-project.org/toh/views/toh_fwdownload?dataflt[Versions*~]=v4&dataflt[Model*~]=3700

Did you power cycle? The hardware page says a power cycle is needed. https://lede-project.org/toh/hwdata/netgear/netgear_wndr3700_v4

Yes i did it. I have read that.