Sony PCWA-A500 - Manual (Page 42)

General connections with the Access Point
Sudde nly, I can't conne ct w ith the Acce s s Point.
The follow ing causes can be considered.
 Access Point failure or the pow er is unplugged.
Confirm w hether or not the pow er supply is connected.
 Access Point is not connected to the netw ork.
If the Access Point is in ISDN mode, communications cannot be established betw een the Access Point and the Wireless client if the Access Point
is not connected to the ISDN Router or to the LAN.
Check if it is. Also, confirm if the ISDN Router DCHP server function and DCHP server on the LAN are operating normally.
It is explained in detail
here , if you have any questions.
 The Access Point settings w ere changed.
If multiple clients are connected to the Access Point, one of them may have changed their Access Point settings.
First, you must search for the client w hose Access Point settings w ere changed and ask w hat changes w ere made.
o If the Encryption Key w as changed, it is necessary for you to change the Access Point registration using the Wireless Palette.
o If the connection mode w as changed, it is possible that communications w ith the Access Point cannot be established because the IP address
could not be acquired.
If this is the case, determine one person to be the netw ork administrator for the Access Point and change the Access Point Setup Utility passw ord to
its ex-factory setting, then change the settings so that no one other than that netw ork administrator can change the settings. When the netw ork
administrator is changing the settings, it is necessary to determine the rules such as notifying other members in advance. Refer
here , for details
regarding the passw ord for the netw ork administrator.
Sw itching the Acce s s Point fails m any tim e s
 Sym ptom 1
Three Access Points are being used. When you sw itch to a different Access Point:
1. The address is acquired by DHCP.
2. The IP address of the Access Point is displayed in the Wireless Palette Advanced information.
In this case, communications cannot be established regardless of the states described above. Also, there is no response even to ping to the Access
Point. What causes can be considered?
HANDLING
First, confirm the follow ing items.
3. After sw itching, the Access Point is either in Phone mode or Cable Modem mode.
4. The setting is the same as a private IP address (such as 10.0.1.1).
In this case, communications cannot be established because the IP address of the ARP table on the PC side and old information remains in the table
for the MAC address. In other w ords, the MAC address that remains in the PC is the MAC address of the Access Point from before the sw itch so
normal communications cannot be performed.
Normally, it w ill automatically be deleted if you w ait for a short amount of time. How ever, you can also delete it using the follow ing procedures.
5. Startup the M S-DOS prom pt.
 For Window s 98 Se cond Edition
Startup the MS-DOS prompt from Start, Programs, then MS-DOS Prompt.
 For Window s M e
Startup the MS-DOS prompt from Start, Programs, Accessories, then MS-DOS Prompt.
 For Window s 2000
Startup the Command Prompt from Start, Programs, Accessories, then Command Prompt.
6. Type "arp -d 10.0.0.1" and pre s s the Ente r k e y.
This w ill delete the old entry to 10.0.1.1.
 Sym ptom 2
Sw itching to the Access Point that is connected fails and the electric w ave reception status becomes out of range. HANDLING
Confirm the follow ing items.
1. Is the Access Point operating correctly?
2. Are the pow er supply, ISDN Router or the cable modem and analog telephone lines correctly connected?
3. Have the Access Point settings been changed?
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