Troubleshooting
Indication/Symptom | What to do |
|
|
application or specific type of data | that the ALG supporting the |
applications. | 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. |
|
|
7.4.1Change 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.
7.5Wireless 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 | |
80 |
