IBM E Server i Series Manual page 110

If that does not help and you suspect that there is a possibility that the PC may
truly not have the buffered UART, IBM recommends that you slow the connection
down between the PC and server. Depending on the operating system, you may
have to change the registry, the DUN object, or the phone book entry, or all three.
The problem when the UART is not buffered is that the high speed chokes the
UART with data, which causes a missed packet of data resulting in a 30-second
retry. This can occur randomly, but will be persistent. The slower speed reduces
the exposure to an overrun of data and therefore no more 30-second retries.
Unable to make a connection when infrared devices are installed
If the PC having connection problems has infrared devices, they will need to be
disabled in some cases. Most of these devices work from COM1 but fail to show
up as using the associated hardware resources. Some experimentation may need to
be performed to isolate the problem during configuration of Operations Console.
Unexpected disconnections
If the PC, local or remote console, or both, have power management capabilities, it
should have this function disabled. Most PCs, and especially laptops, reset the
communications ports when invoking power management after the specified time.
This would potentially disconnect the established connection. Therefore, a local
console that goes into power saver mode might disconnect to the server and
disconnect an active remote console.
Use HyperTerminal to validate connectivity between client and
the server
HyperTerminal is a Windows application used for connecting to various sources
and is supplied by all Windows operating systems on the install media, though
may not be automatically installed. When the local console directly attached to the
server does not connect, you can use HyperTerminal to determine if the PC has
connectivity to the server.
Notes:
1.
2. The following example was performed on a Windows 2000 PC. Other operating
See the following to install and use HyperTerminal:
Install HyperTerminal: To install HyperTerminal:
104
iSeries: iSeries Access for Windows Operations Console
The data is slow to appear so be certain to allow a 15 - 20 seconds for an
action to complete before moving to the next step. Also keep in mind that some
steps may not provide data to the window. Wait a little and then continue.
systems may have slight differences in the presentation of options. The
important part of this test is getting a response back from the NEGOTIATE at
the end of the document.
Install HyperTerminal
Instructions available to install HyperTerminal on your PC.
Use HyperTerminal
Instructions available for using HyperTerminal.
1. Click your path.
v Start –> Programs –> Accessories –> HyperTerminal
v Start –> Programs –> Accessories –> Communications –>HyperTerminal
Note: You want the executable and not one of the predefined connections or
the folder.