I am having the same problem but I am using encription. The software inserts a dash in 2 places in the encription. When I remove them and store the changes it re inserts them. I called Phillips support July 11th they said they would be back to me within 24hrs. I have not gotten a call back yet. I have tried DHCP but the 6400 does not receive the info, even though I have 4 other IP devices working and getting DHCP info from the same router. I am looking for help also.