Disconnected from photon: DnsExceptionOnConnect

[AlexOsinaga]

when using on the oculus quest 2 it cant load avatars it throws the error : disconnected from photon: DnsExceptionOnConnect
this happens only in the stand alone apk, when connected to the PC with the unity editor it works fine

In PhotonSetup.cs I added:
public override void OnDisconnected(DisconnectCause cause)
{
Debug.LogError("Disconnected from Photon: " + cause.ToString());

    }

and only in the headset it tells me:
Disconnected from Photon: DnsExceptionOnConnect
readyplayerme.photonsupport.OnDisconnected(DisconnectedCause)

Does anybody know how can I solve this? the problem seems too general and I can't find a solution