Ericsson W3X - Manual (Page 86)

Troubleshooting
80 1/1551-CRH 102 168 Uen Rev A 2008-12-16
Indication/Symptom What to do
application or specific type of data
applications. that the ALG supporting the
Internet application is enabled.
If the application requires UPnP
IDG, check that UPnP IDG is
enabled on the NAT page.
A port forwarding rule might be
required for a specific application.
See section 3.7.3 – Port
Forwarding.
7.4.1 Change TCP Settings
To achieve maximum performance on the Internet connection some
parameters in the TCP/IP stack of the client PC can be changed. These
kinds of settings are hidden in the Windows registry, but there are some
tools that give user friendly access to them, for example “TCP Optimizer”,
http://www.speedguide.net/downloads.php
The following TCP settings are recommended to optimize the performance:
TCP Receive Window = 146000
Selective ACK:s = Yes
Max Duplicate ACK:s = 2
RFC1323 TCP Window Scaling = Yes (enabled)
Note: Windows Vista and recent versions of Linux kernels have
automatic window scaling enabled by default and should not need
any TCP tweaking.
7.5 Wireless LAN Connection
Table 27 – Wireless LAN
Indication/Symptom What to do
Cannot access the local network
from a wireless device.
Check that the WLAN indicator
on the front panel of the Ericsson
W3x is on. If not, connect an
Ethernet cable between the PC and
the Ericsson W3x to establish a
connection and enable the wireless
LAN (disabled in the default