Due to my location, I'm stuck with ADSL service. My 1000Z modem provided stable 7Mbps. In an attempt to improve my speed I bought a C3000Z modem because Centurylink says it can provide up to 20Mbps ADSL. Installed today and my speed has not changed. Does Centurylink need to do something at the DSLAM in order to up my speed? If so, will they give me a hard time about it?
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