Clear arp table on sb5101 how?

[coldfusion]

Okay, here we go again, I thought I had this nailed the last time, apparently not...what I am seeing happening now it if I get a valid config from a hfc mac, I can use that and get online. However, after maybe 2 hours, I get 169ed again. Now, if I change back to a previolus valid mac, with a valid config, that used to work, which ended up 169ing me in the past, I still remain 169'ed on it, even though I know it to be valid and working. What in gods name is causing this behaviour. I have never seen this happen before.