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CIS
Home > Networking
> Troubleshooting Network Connections
> Previously worked on wired WHOInet in same location
Troubleshooting - wired WHOInet problem w/no change in location
Make certain that you've followed these steps.
- Confirm that your network cable is plugged into your computer
and the wall jack. If you have a netgear switch between your
computer and the wall jack, plug your computer's network cable
directly into the wall jack temporarily. If that fixes the problem,
then the netgear switch is the problem. If there are other computers
plugged into the netgear switch - do they have connectivity?
- Are you able to reach the WHOI
public site (http://www.whoi.edu)? Reach Google
(http://www.google.com)?
- If YES to either of the above, you have at least some connectivity.
Go to 3.
- If NO, please try step 5.
- Try the internal
(http://www.whoi.edu/internal) site
- Can you reach the public site
by IP address?
- If YES, you have connectivity but are unable to reach the
DNS servers. Review your IP settings to be sure that the DNS
servers are set to 128.128.243.3 and 128.128.243.2. Call the
Helpdesk at x-2439.
- If NO, the remaining possibilities are:
-
- - your machine has spyware which is preventing it from access the network.
- - the WHOI web servers are temporarily unavailable.
Did you check Google?
- - the network cable is pinched by a piece of furniture?
- - new hardware on your computer? If your motherboard
changed, you may need to re-register your computer. See
the section on registering a new
computer.
- - your computer may be blocked due to a virus infestation
- check your voice mail. Contact the Helpdesk.
- - something has changed in the network closet - contact
Helpdesk.
- - Additional Tips to discover the
problem
-
- If you "ping mail.whoi.edu", what happens?
- Open a terminal window or an xterm or Click on Start->Run
and type in 'cmd'
- Type: ping mail.whoi.edu
- If you receive a "Reply from X.X.X.X", where X
is an address... proceed to step 4.
- If you see a message indicating that "mail.whoi.edu"
could not be found, try to reach mail.whoi.edu by IP address:
ping 128.128.76.63
- If you receive a message indicating that the request timed
out, there is a problem with your connection. Call the Helpdesk
at x-2439 and let them know the steps you have taken.
- If you receive a "Reply from X.X.X.X", where X
is an address... suspect a misconfiguration of the DNS servers
or a temporary outage. Call the Helpdesk at x-2439 to tell
them the steps you have taken.
- You are able to get to some locations. Maybe the site you
are attempting to contact is unavailable. Or, your computer
has a problem. Contact the Helpdesk at x-2439 and give them
this information.
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