I was having drop off problems with 10.5.1 but those were tolerable compared to my new problem.. Since upgrading to 10.5.2 I can't see or manually connect to my home access point. The weird part is, if I have the install disc in about to do a fresh install over 10.5.2 I can see it and connect to it just fine. Any guesses?
I posted a few times saying that I never had any wireless (connection drops off) before 10.5.2 nor after 10.5.2. It lasted almost 3 weeks. On my 3 weeks old Macbook, I started to get wireless issues last week.
I'm using a D-Link DIR-625 router. The router is located on the first floor in my house and I sometimes use the Macbook on the second floor. Until this week, I had strong signal all the time. It started one evening when I got very slow transfert rates (unusable connection). The day after, I was on the second floor again (at the same place) and I was not even able to see my network. What was very strange, I was detecting my neighbor's network but not mine. When I got back closer to the router downstairs, I got the signal back. Even though the router is downstairs, I have a very opened area house and the distance to the router from where I work upstairs is about 20-30 ft. So the distance and the walls are not an issue.
Decided to change the D-Link router for AEBS (I hate when things don't work), the AEBS is connecting with very strong signal with no problem at all anywhere in my house.
Here are the settings I had on the D-Link router :
Latest Firmware revision
Wireless channel : auto-scan (using channel 3)
802.11 mode : Mixed (n, g, b)
Channel width : Auto 20/40 MHZ
Transmission rate :Best (automatic)
Looking at the real transmission rate, it had the tendency to vary from 90 to 120
Network visibility status : Invisible
Security : WPA personal
Here are the settings on the AEBS
Channel : automatic (using channel 11)
802.11n mode (802.11 b/g compatible)
Multicast rate : 2 Mbps (don't know what it is)
Transmission rate :100% with interference robustness checked
Looking at the real transmission rate, it looks constant since yesterday at 130
Network visibility status : Invisible (closed network)
Security : WPA personal
Hope that helps