Durnehviir's never come when I've called. Went to the wide open planes outside Whiterun near where the Mammoths hang and shouted pointing up, down, left, right, sideways. Nothing. Then a dragon conveniently attacked still nothing. I obviously only have the first word.

I also tried to call him and Odahviing when the two dragons attack on the ice. Thought it’d be cool to see a 4 dragon battle. Nobody showed by the time I killed both dragons. That was the first time I tried to call Odahviing and I was aiming at the sky with him. So maybe he didn't show 'cause the battle was over. But Durnehviir, nothin'.

I’m playing both vamp and Dawnguard. Dawnguard is the problem described above, the vamp well since the only 2 times dragons have been nice we’ve been led by the nose, so when I came out the door and Durnehviir was staring at me and I’d just killed him and Valerica said he’ll keep coming back so hurry, I hit him with Lightning Storm before I took a step and he dead. Not at the word wall, just gone. So the only way I’ll get this shout is the Dawnguard play through and he is ignoring the call.

Any suggestions?

odahviing will not come if you r in in dlc area
to summon durnehviir u have to shout at the ground