Troubleshooting
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LANCOM Office
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56
EN
from the above-mentioned external factors) which may involve one's own
equipment.
One common problem occurs when large amounts of data are sent and
received simultaneously with a Windows PC using an asynchronous connec-
tion. This can cause a severe decrease in download speed. The cause of this
problem is what is known as the TCP/IP receive window size of the Windows
operating system that is set to a value too small for asynchronous connec-
tions.
Instructions on how to increase the Windows size can be found in the Knowl-
edgeBase of the support section of the LANCOM website (
www.lan-
com.de
).
9.3
Unwanted connections under Windows XP
Windows XP computers on a LAN attempt to compare their clocks with a
timeserver on the Internet at startup. This is why when a Windows XP in the
LAN is started, a connection to the Internet is established by the
LANCOM
.
To resolve this issue, you can turn off the automatic time synchronization
under
Right mouseclick on the time of day / Properties / Internet time
.
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