Per the online documentation:
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www.arrisi.com/consumer/ ··· 5Jun.pdfThey have implemented TR-069 for remote management. Many DSL RGs are also so afflicted. Should be able to mitigate the issue by bridging the RG, and running your own router of choice.
I returned my Pace 4111N RG (ADSL2+ device) for that, and to get out of the monthly lease. Silly ISP just sent me an email offering to "upgrade" my modem. Back to that undesirable device.