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  1. Z

    Can 1 band of a dual-band WiFi card go bad?

    I'm troubleshooting a WiFi condition on an HP Envy laptop where the 2.4GHz band has extremely high ping rate and the 5GHz band does not. Using Google's 8.8.8.8 DNS server as a benchmark 2.4 average typical time 2800-3000ms w/ packet loss 5.0 average typical time 28-36ms -Signal strength...
  2. Z

    T1 Phsyical Layer Question

    Thanks guys, lot of good keywords that are helping my search for knowledge.
  3. Z

    T1 Phsyical Layer Question

    Thanks ryan, sinclair, deaedius, usr. I did have a feeling that the role of the modem had something to do with redundancy.
  4. Z

    T1 Phsyical Layer Question

    I recently saw my first T1 installation, which is carrier I know nothing about, and I noticed there was a 56Kbps modem attached to a Cisco ISR via a serial cable which I assume was RS-232. I'm just wondering what the function of 56Kbps modem is in a T1 setup and what a good starting point...
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