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If
you have trouble with your
RDSL connection
When
you’re having difficulty installing or using your service, problems can
be in the configuration of components in your LAN, in the wiring inside
your house, with the wiring between you and the telephone company, or
between the telephone company and LISCO.
This
page is intended to help you sort out the most common DSL configuration
errors.
Read
carefully through your manual and double-check
your wiring before you panic. If you think you’ve done it all right, give
us a call and we’ll be glad to help. You
can reach us for support at (641) 472-7100 or (800) 331-8414.
Troubleshooting
No
dial tone
If
you lose dial tone on your service due date, please contact LISCO
immediately! While this is an exceedingly rare occurrence, it indicates
a wiring problem at the telephone company, or a problem with LISCO’s
equipment, that must be corrected immediately for you to use your telephone
line.
No
line light
The
most common installation mistake is to put the noise filter between
the DSL modem and the wall jack.
The noise filter should not be installed
between the modem and the wall jack.
(It filters out the DSL data!)
No
Ethernet light
Try
the other cable. Sometimes you need to try both cables before you get
a link light on your Ethernet port.
Noise
on the phones
1.
Install your noise filters properly. If they're upside down, they increase
noise.
NOTE:
The included
filters are for single-line jacks. Two-line or walls-style filters must
be ordered separately.
2.
Faulty equipment can cause undue noise. Remove everything from your
jacks: splitters, switches, surge protectors, etc. If the noise is gone,
reinstall your other devices one by one, starting with one phone, and
then adding the modem. Keep replacing devices until you find the one
that is making noise. You will need to repair or replace that device.
3.
Try the modem in another jack. Sometimes an improperly-wired jack increases
noise on your lines.
If
you still have noise...
There
are wiring issues known to cause excessive noise when DSL is activated,
including bridge taps and tip & ring reversals. A qualified telephone
technician can locate and correct these problems for you.
Sometimes
problems can be solved by having a qualified telephone technician install
a single noise filter at your demark, so noise is filtered out before
it even gets to your inside wiring.
Learn
more: Wiring problems diagram
If
you suspect an inside wiring problem but don’t want to commit to a technician’s
full fee, please schedule a visit from our in-house telephone techs.
For $25, you can get the advice of a qualified technician, and even
a quote if you need wiring work done!
No
IP address
Verify
your computer settings (see the manual for instructions)
and reboot your computer or router again.
If
you just want to change the device on your connection, see these
instructions.
If
you still can't get an IP, double check all of your wiring. Do you have
a green LINE light? Do you have a green Ethernet light?
NOTE:
If you need to share your connection with more than one computer, you
will need to order more IPs from LISCO, or purchase and install
a router on your network.
Speed
issues
If
your connection seems awfully slow, you should first reboot all of your
equipment (per the manufacturer’s instructions). Sometimes routers and
modems need to be restarted, just like computers need to be rebooted
occasionally.
Next,
try disabling your software firewall for just a few minutes to see if
that’s slowing things down. (Sometimes they need to be reconfigured.
See your manufacturer’s documentation for help on how to do that.)
Test
your speed at
http://speed.lisco.com [not yet available for Mac users] to see
if things really are slow, or if it’s just your favorite site that’s
being sluggish today. Remember the 80% rule: up to 20% of your bandwidth
can be used by the TCP/IP protocol for overhead! So a 512k connection
is quite healthy at about 410k.
If
you suspect that something really is wrong, you can request monitoring
from LISCO. We can watch your connection over a period of 24 hours or
more to see if your speed really is dropping out.
For
a list of technical definitions, click here.
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