FW : 1.34, ver A4, sip unchecked, (all catagories unchecked) ATA in DMZ. After 8-12 hours the router drops and reconnects...but the VOIP (Linksys PAP2) is unable to re-establish. I have had this router for one week now and I am already considering dumping it...in many ways it is really nice, but so many features do not work. The website filtering is utter rubbish compared to Netgear...and stability is just crap.