propane mystery

[mrtgraz]

I do a lot of boon docking and therefore run my refer on propane.More then once I had the gas go off. Don't know why, Ive got plenty of gas {not being funny } And i cant get it to relight Ill switch tanks, turn them on and off, disconnect then and everything seems o.k. Them after sometimes hours usually , Ill try it again and it will light right up.has a anyone else had this happen. As info the stove and everything else gas wise wont work either.