For some reason, internet connection stops working after sending restart signal to all the other threads on 5.1.0 (and lower?). My solution was to download first loadiine.elf with curl, and only then do the trick to cancel threads and display IP selection screen.For now, you must load loadiine in this order :
1- loadiine kernel
2- TCPgecko <-- need because of a bug in curl function (see the first post)
3- loadiine3