681038
63
Zoom out
Zoom in
Previous page
1/71
Next page
Troubleshooting 63
IntroductionInstallationConfigurationInternet AccessLinking NetworksRemote AccessSending FaxesSecurity
Increasing the TCP/IP window size under Windows
If the actual transfer rate of a DSL connection is significantly below the fastest rate listed
by the provider, there are only a few possible causes (apart 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 simulta-
neously with a Windows PC using an asynchronous connection. 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 connections.
Instructions on how to increase the Windows size can be found in the Knowledge Base of
the support section of the LANCOM web site (www.lancom.de
).
Unwanted connections under Windows XP
Windows XP computers attempt to compare their clocks with a timeserver on the Internet
at start-up. This is why when a Windows XP in the WLAN is started, a connection to the
Internet is established by the Business LAN R800+.
To resolve this issue, you can turn off the automatic time synchronization on the Windows
XP computers under Right mouse click on the time of day Properties Internet
time.
Cable testing
A cabling defect might have occurred, if no data is transmitted over LAN or WAN connec-
tion, 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 Business LAN R800+.
Change under WEBconfig to menu item Expert configuration Status LAN sta-
tistics Cable test. Enter here the name of the interface to be tested (e.g. “DSL1” or
63


Need help? Post your question in this forum.

Forumrules


Report abuse

Libble takes abuse of its services very seriously. We're committed to dealing with such abuse according to the laws in your country of residence. When you submit a report, we'll investigate it and take the appropriate action. We'll get back to you only if we require additional details or have more information to share.

Product:

For example, Anti-Semitic content, racist content, or material that could result in a violent physical act.

For example, a credit card number, a personal identification number, or an unlisted home address. Note that email addresses and full names are not considered private information.

Forumrules

To achieve meaningful questions, we apply the following rules:

Register

Register getting emails for Lancom Business LAN R800 plus at:


You will receive an email to register for one or both of the options.


Get your user manual by e-mail

Enter your email address to receive the manual of Lancom Business LAN R800 plus in the language / languages: English as an attachment in your email.

The manual is 1,4 mb in size.

 

You will receive the manual in your email within minutes. If you have not received an email, then probably have entered the wrong email address or your mailbox is too full. In addition, it may be that your ISP may have a maximum size for emails to receive.

Others manual(s) of Lancom Business LAN R800 plus

Lancom Business LAN R800 plus User Manual - German - 74 pages


The manual is sent by email. Check your email

If you have not received an email with the manual within fifteen minutes, it may be that you have a entered a wrong email address or that your ISP has set a maximum size to receive email that is smaller than the size of the manual.

The email address you have provided is not correct.

Please check the email address and correct it.

Your question is posted on this page

Would you like to receive an email when new answers and questions are posted? Please enter your email address.



Info