There are 5 signs to look out for to know if your cable modem is dying, failing, or “going bad.” Connection indicator lights have turned off even if you can still surf the web. Data transfers/downloads are slow. The connection speeds are slow.
How can I test my modem?
To verify that your modem is functioning properly, use the following procedure to test for problems.
- Run the handshake test.
- Run the handshake test again.
- If the handshake test is successful, run the offhook test.
- Perform the offhook test again.
- If either the handshake or the offhook test fails again, reset the modem.
What happens when a modem goes bad?
However, if your modem is bad or is on the way to going bad, here is what you can expect: The modem won't turn on. You can't connect to the internet at all. Internet connection drops in and out randomly.
