Unwanted Connections Under Windows Xp; Cable Testing - Lancom 1821n Wireless Manual

A typical problem arises when a Windows PC simultaneously sends and recei-
ves large quantities of data over an asynchronous connection. This situation
can severly impact download speeds. The cause of this is the RCP/IP receive
windows size as defined in the Windows operating system. The default value
is too small for asynchronous connections.
Instructions for increasing the windows size are available in the Knowledge-
Base in the Support area of the LANCOM Systems Web site (www.lancom.eu).
10.3

Unwanted connections under Windows XP

When booting, Windows XP computers attempt to update the time by acces-
sing a time server in the Internet. For this reason, Windows XP computers
booting in the WLAN cause the LANCOM to connect to the Internet.
To prevent Windows XP computers from automatically synchronising the time,
right- click on the time
10.4

Cable testing

A cabling defect might have occurred, if no data is transmitted over LAN or
WAN connection, although the configuration of the devices does not show
any discernible errors.
You can test the cabling with the built-in cable tester of your LANCOM.
Change under WEBconfig to menu item LCOS Menu Tree
statistics
(e.g. "DSL1" or "LAN-1"). Pay attention to the correct spelling of the inter-
faces. Start the test for the specified interface by clicking on Execute.
LANCOM 1811n Wireless – LANCOM 1821n Wireless
Change time/date
Cable test. Enter here the name of the interface to be tested
Chapter 10: Advice & assistance
Internet time off.
Status LAN
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