Please help. i have a home p.c and my son has a laptop which he uses wireless . we have

Question

i have a home p.c and my son has a laptop which he uses wireless . we have encountered a problem that another p.c is using the same channel [ 1 ]. i can get into wireless settings on laptop but not on home p.c .every time click on wireless it comes up with admin error try again in 765476 minutes. is there any other way i can access these settings so i can change the channel number ? thanks in advance for any help . trevor