<p dir="ltr">Depending on the CO/stinger equipment it might just be your chipset is incompatible.</p>
<p dir="ltr">I had issues in the past with Bell sympatico stingers (made by Ikanos). They had firmware bugs verified by both Bell and Ikanos with anything that didn't run a broadcom DSP. There was nothing I could do except find a decent bridge modem based on a broadcom chipset.</p>