Hunter Pets Issue

Hi! I’m supporting a WoW Legion server in a lan without connection to internet.

I have an issue with the pets of the hunter, when the hunter starts it comes with his own pet and it’s all ok. But when I adquire the spell that allows me to get a new pet [spell id: 1515] and i try to tame a new pet, it gets my level and with 2450 heal points and whichever monster just touch the pet even with 1 point of damage it die. That only happens with pets that I replace after abandoning another one. I’ll wait for answers.

Sorry for my English I hope you understand.

And Thank you for reading.