My grandma has a Panasonic DECT 6.0 Plus home phone. Every time her phone rings my computer disconnects from the internet. Some things I have noticed is that I am the only one in the house who disconnects when it rings, and if I go downstairs with my computer it won't disconnect. Looking through existing questions/answers show that it's either a filtering problem or the wireless being interfered with by her cordless phone. Which do you think it is in my case? How do I go about fixing it?