Hello there! As the title says, there's a device connected to my router. I have noticed it keeps switching between 2.4GHz and 5G and then disconnects there are 3 more who I do not know what they are, but it's worrying me that it may be some sort of a DDOS or something. Although I haven't seen an issue with it, but it keeps on connecting to my router even if I changed the password to something different.