Hi all,   We've been with TPG for 12 years, and on NBN FTTN (still haven't been upgraded yet) for about 6 of those years all with the included HG659, and we're finding that over the last year or so the wifi and internet overall has been getting unstable.   Is this a case of the modem finally giving up on it's life? Do I have to source my replacement through TPG? Only if I want to keep VOIP? I see TPG offers the $100 rebate for new customers, but nothing for existing ones I assume.   Thanks! ... View more