| First Published: |
November 22, 2005 |
| Last Revised: |
September 2, 2006 |
From time to time, your Internet connection might be lost. This
document discusses the process of restoring the connection, and
troubleshooting the problem.
|
PROCEDURE:
Restoring Internet Connection
(note any discrepancies during each step)
- Power Cycle (see glossary below)
ISP Access Router
(DSL/cable "modem"):
- Observe diagnostics status lights sequence.
- Power light steady.
- PC/Enet light steady.
- DSL/Data light steady.
- ISP router (access) is ready.
- Power Cycle Internet Gateway Router:
- Observe diagnostics light sequence.
- Power light steady.
- WAN light steady.
- At least 1 LAN light steady.
- Gateway router (sharing) is ready.
- Test Workstation:
- Simply test Internet access by visiting "google.com"
- If that doesn't work, restart station and test again.
- Normal Internet Connection restored.
- Otherwise, contact Bravo.
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NOTES:
- Contrary to ISP instructions, do not power
off all units to start. Follow instructions above for maximum
efficiency & effectiveness.
- Never restart or otherwise disturb the
file/domain server hastily. It is completely unrelated to
your Internet access, contrary to advice from junior technicians.
- Trained & authorized DIFA
may reconfigure to single-station mode and access ISP router
directly to investigate ISP access line status.
Important Points to Remember:
- ISPs are neither obligated nor equipped
(unwilling & unable) to troubleshoot (or even accommodate) your
network. They can only focus on whether the access line is up.
- ISPs will assume you're a single-user and don't care about the
network. They
will do anything that is convenient to them, including disrupting
your network & servers, etc.
- Seemingly innocuous steps could quickly cascade into
catastrophic damage.
- The responsibility to preserve your
network and servers, etc. lie with you, or your hired
representatives.
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Glossary
|
| Power Cycle |
Momentarily power off
for 5 seconds, then power on again. (3 minute off time might
be required for "cable modem"). Pull out the AC adapter
connecter, if there is no power switch on the unit. |
| Steady
|
At least 90% solidly
lit, with maybe occasional irregular flickers. |
| Blinking |
Alternating on/off
rhythmically. |
| Off |
No light. |
| Internet Gateway
Router |
For most sites, this is a small appliance (D-Link, Linksys,
etc.) For medium businesses, it's
most likely a Linux server, or Microsoft ISA Server. |
See also:
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