Node 130 lagging songs above 44.1

So i am using Qobus and a node 130. Never had any trouble playing music or so ever. Since a month i have a new internet provider and a new modem with an intern router. But the last few weeks i noticed that some songs are lagging. When thisnis happening i see the play/pauze button in the bluos app is saying pauzed and its buffering. After a few seconds it continues for a few seconds and pauzes and buffer and so on. I just find out it is only doing this with songs higher then 44.1. What is causing this? My new internet provider its modem/router?

Add:

Listening Qobus on my phone true network or gsm doenst matter, it plays the hi res files on my headphones.

I tried listening music via the node direct to the headphones (bluetooth) also lagging when playing hi res.

Sloved....

I rebooted all my devices, now it plays without lagging...