First
Published: Nov 5, 2018 see related 2005 memo
SITUATION:
Access to local file server is fine, indicating general network
infrastructure is sound: switches/hubs, repeaters, PoE injection, site
cables, wall plates, patch panels, patch cords, AC power at closet.
ONLY Internet
is down, for all
stations.
This is a bird's eye view of the process. You might have been
given a more detailed checklist, with specifics applicable to your
unique equipment and network complexity. The purpose of this
exercise is to:
- see if you can revive
Internet connection, and if not...
- assess whether the fault lies with ISP, or
within your
network
- additional procedures would be needed
- depending on precision of pin-pointing
required
SEQUENCE
Checklist
- power-cycle* M1: Arris, wait
for it to settle**
- power-cycle R1:
D-link
WBR-1310 / pfSense / Smoothwall & wait
- power-cycle R2:
D-link
DIR-820 & wait
Announce revive sequence complete: all users test email & web
NOTES
- You might
have another "modem" M2
for VoIP (do not disturb).
- You might have only 1 router (skip
R2).
- Network Switches S1, S2... generally don't
need power-cycling.
- Phone
system & security camera NVR also
remain undisturbed.
- Be on the look out for obvious cords loose/fell
out/damaged.
* power-cycle: turn OFF + WAIT 5 seconds (unless otherwise
specified) + turn ON
**
upon power up, you'll likely observe all lights lit... all off... then
changing patterns, as it progresses through self-tests. You need not
focus on exact details of the "song and dance" routine, other than that
it happened, and eventually
settled into a normal
state of operation, with distinct ON/OFF, and some
occasionally blink/flicker.
See
also:
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