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 Why
is my connection to the InterJet so slow?
My T1 is connected
to an integrated router and the router is connected to both my InterJet
and PC. Both the InterJet and PC have routable addresses, i.e., the
IP for the InterJet is 216.112.10.186 and the IP for the PC is 216.112.10.187.
The default gateway for this block of IP addresses is 216.112.10.185.
Answer:
Make sure that
the connection from the router to the InterJet is to the perimeter
port and not the office port. The office port is for local LAN only
and the perimeter port (WAN port) is for routable IP addresses (in
this case, the T1 assigned IP address). It will work connected to
the office port but direct access to the InterJet will be slow.
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My
T1 connection is connected to an integrated Cisco Router, how do I connect
to my InterJet?
Answer:
From one of the
output RJ45 ports on the router, using a standard RJ45 (8-pin) straight
through cable, connect from the router into the InterJet's perimeter
port. Configure the perimeter port with the assigned IP address to
the domain name and assign to the InterJet the default gateway address
that is assigned to the CSU/DSU. Finally, verify that the perimeter
port is enabled from within Commander.
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The
InterJet asks for a login after I set it to limited access, what should
I do?
Answer:
Enter your user
login name and password. When the InterJet Administrator sets Web
browsing privileges to limited, some users of the office network may
not be permitted to browse the Web. This may be because of heavy network
traffic, or for other reasons. If you cannot browse after entering
your username and password, consult your InterJet administrator for
more information.
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My
graphs don't show the sites to which users are connecting, what should
I do?
Answer:
In order for the
graphs to work you must have the Internet access set to "limited."
From the main page of the InterJet system software click the scheduler.
Click "change schedule". Then from the dropdown menu on
the Internet access box select "limited" for each category,
and click "OK."
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My
ISDN performs slowly, why?
Answer:
There are many reasons why you may have
slower than anticipated connection. A few possibilities:
- Someone in your office may be downloading
a large file.
- Your InterJet may be performing a process
that requires an Internet connection
- There may be several users trying to
utilize resources.
A possible solution would be to turn on
the shared bandwidth feature. (This is done from the InterJet software
home page in the Wide Area Network section.) This will ensure that
all InterJet users can access the Internet at the same speed, even
if one or more users are downloading large files from the Internet.
Bandwidth sharing allocates your Internet connection’s available
bandwidth equally among all simultaneous Internet connections, so
no user or InterJet process can use all the available bandwidth. You
can turn this option on or off at any time.
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My
DSL performs slowly, why?
Answer:
There are many reasons why you may have
slower than anticipated connection. A few possibilities:
- Someone in your office may be downloading
a large file.
- Your InterJet may be performing a process
that requires an Internet connection
- There may be several users trying to
utilize resources.
A possible solution would be to turn on
the shared bandwidth feature. (This is done from the InterJet software
home page in the Wide Area Network section.) This will ensure that
all InterJet users can access the Internet at the same speed, even
if one or more users are downloading large files from the Internet.
Bandwidth sharing allocates your Internet connection’s available
bandwidth equally among all simultaneous Internet connections, so
no user or InterJet process can use all the available bandwidth. You
can turn this option on or off at any time.
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My
analog performs slowly, why?
Answer:
There are many reasons why you may have
slower than anticipated connection. A few possibilities:
- Someone in your office may be downloading
a large file.
- Your InterJet may be performing a process
that requires an Internet connection
- There may be several users trying to
utilize resources.
A possible solution would be to turn on
the shared bandwidth feature. (This is done from the InterJet software
home page in the Wide Area Network section.) This will ensure that
all InterJet users can access the Internet at the same speed, even
if one or more users are downloading large files from the Internet.
Bandwidth sharing allocates your Internet connection’s available
bandwidth equally among all simultaneous Internet connections, so
no user or InterJet process can use all the available bandwidth. You
can turn this option on or off at any time.
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My
frame-relay performs slowly, why?
Answer:
Frame relay is
a Wide Area Network or WAN technology that was developed in the late
1980’s as a lower-cost alternative to leased line. Frame Relay
utilizes the existing switches of a carrier but has no dedicated path
for the customer’s data to take. This makes Frame Relay theoretically
more reliable than leased line but in practice both technologies fail
at about the same rate. Frame Relay is less expensive than leased
line because the user is only guaranteed a fraction of the bandwidth
that he can actually make use of. Therefore, with frame-relay, there
is no guaranteed connection speed. This, at times, could result in
slower Internet access.
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My
T1 performs slowly, why?
Answer:
A T1 is a digital
trunk line containing 24 channels that can contain voice, 64 kbps,
56 kbps, 9.6 kbps or any combination per channel of data. If all 24
channels are data and the desired rate of transfer is 64 kbps, then
a T1 can carry 1.54 mbps of data simultaneously. T1s can carry voice
and data at the same time, but each channel must be dedicated to whatever
it will carry. In this way T1s are very versatile and can carry dissimilar
types of voice and data traffic at the same time. However when transferring
data, T1s are constantly taking errors. Because a T1 carries a digital
signal it is constantly renegotiating. When the data doesn’t
come through in sequence it will drop the packet and wait for the
appropriate piece of data to arrive. This is especially true when
there is physical trouble with the line itself (the actual copper
wire.) If there are any imperfections in the line data will be dropped
or excessive errors tracked which will cause more renegotiating. Any
one of these variables will cause a slower connection to the Internet.
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Why
can't I browse the Web after the InterJet is set to limited access?
Answer:
Click on the Personnel
Agent from the main page of the InterJet software user interface.
Go to User List and edit user privileges. From the Internet Access
section, check the box to allow the user to "surf even when access
is limited."
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How
come my SRA connection is so slow?
Answer:
There are several
limitations in the way an SRA connection is set up. The first is the
speed at which you are connected through the ISP. For instance, if
you are connected through a 56k modem you are not guaranteed to be
connected at that rate. Even though your modem is capable of that
speed, your actual phone line may not have that capacity. The second
limitation could be in the PPTP (point-to-point tunneling protocol)
which is how your data is being transferred. This is an encapsulated
process, which means your data broken up into smaller packets and
this can slow down the rate of transfer. Another limitation could
be caused by several users and lots of activity. There are many variables
involved with your connection speed. An important factor to understand
is that your speed will never be faster than your slowest connection.
The "weakest link in the chain" is a good way to evaluate
and prepare for Internet connection speed estimates.
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What
does "Remote
modem does not respond" mean?
Answer:
Run auto-configuration
again and keep a close eye on the LCD panel on the InterJet. Note
what it reports prior to the error message. If the report prior to
the error message is "reading dialing 918003243540", then the Commander
modem is not responding. If the the report prior to the error message
is "reading dialing 95551234" (where the 9 is for outside line and
5551234 is the local POP number), then the POP server modem is not
responding.
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The
InterJet appears to remain connected all the time when using dial
on demand.
Answer:
You have an analog or ISDN dial
on demand connection. Connections are successful, but the InterJet
never appears to disconnect.
Check the "check for incoming mail" settings.
Make sure incoming mail time is greater than the "idle time to disconnect"
setting. Try a "check for incoming mail" setting of 4 hours as a first
approximation.
Also check client machine settings. They
may be set to surf at intervals when the browser is active, or an
information retrieval program, such as PointCast, may regularly access
the an Internet site. These activities will cause the InterJet to
remain connected to the Internet.
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The
InterJet does not connect,and may report a PPP authentication error.
Answer:
If the InterJet returns "PPP authentication
error" when attempting to connect using ISDN:
- Test the ISDN physical layer by connecting
an analog phone to the ISDN line. A steady click, click, click indicates
at least one ISDN channel is active.
- Test each B channel separately with
the Internet connection by de-checking the "Use both B channels"
box and using one SPID and number at a time.
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ISDN
setup requires 2 different telephone numbers.
Answer:
When using both B channels for
ISDN connectivity, an InterJet may be assigned two different
phone numbers to achieve multi-link PPP. The InterJet serial port
setup includes only one phone number field.
To use two phone numbers to connect to
the Internet, go to System Agent/InterJet/ISDN Port and edit the the
Telephone number. Enter the first telephone number into the serial
port telephone number field, followed by an ampersand (&) and
then the second phone number.
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After
upgrading or installing ISDN connections, my phone bill is higher
than expected, particularly
compared to an analog connection.
Answer:
- Check your InterJet's connection settings
to limit connection time.
- Change "Disconnect after x idle
time" to its lowest setting, 2 minutes.
- Change "Check for mail" to a longer
setting (for example, 30 minutes or 1 hour).
- Change "Process outgoing mail"
to a longer setting (for example, 30 minutes).
- Check client machines for any automatic
browsing software, such as PointCast. Clients with automatic external
pop mail checks will also cause regular InterJet connections to
the Internet.
The WhistleWare System Agent/Logs information
can be used to determine the cause and length of each InterJet connection,
and help refine appropriate connection and client settings.
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ISDN
connection using Centrex is unsuccessful.
Answer:
Local Centrex connections normally
use a phone number such as "#171".
- If you have a Centrex connection,
verify the appropriate phone number.
- If this short phone number is
unsuccessful, test the ISDN setup by using a full phone number,
including area code. If the full phone number is successful, the
Centrex setup needs to be checked by the telco.
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