Troubleshooting
DLoG ITC 7
User’s Manual
77
Step 2 for computers with MS-DOS: BIOS setup setting USB Legacy Support
If step 1 does not achieve a satisfactory solution to the transmission problem, please
change the following additional setting in the BIOS setup.
1.
In BIOS setup, open the menu
Advanced | USB Configuration
.
2.
Go to the setting
USB Legacy Support
.
Here,
Enabled
is set by default.
3.
Change this setting to
Disabled
.
4.
Save this setting and leave the BIOS setup.
Warning
: When the setting
USB Legacy Support: Disabled
is selected, a USB
keyboard and/or a USB mouse can no longer be used in the following situations:
•
in the "Safe mode" of the computer
•
when using a Windows start menu (e.g. selecting which operating system should be
started)
•
when starting the computer in MS-DOS mode (does not apply to the MS-DOS
command window in Microsoft Windows)
•
when a Windows "blue screen" error message appears with the request to hit a key
•
when ScanDisk requires input or other messages occur while the PC is booting
Fix: Use PS/2 devices instead!
15.2.
Data transmission via LAN / Ethernet
If problems occur during data transmission over LAN/Ethernet (e.g. data is lost or not
detected), the cause of these problems may be a cable which is too long.
Depending on the cable layout and interference from the environment, it may be
impossible to use the cable length of 100 m given in the specification (IEEE802.3
standard).
The solution here is the use of a shorter cable.
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