hello
week ago I sent my n900 for repair because i had a problem in booting it .............. so I got it back and i was trying to establish a connection between my n900 and router ........ at 1st it couldn't see the router (SSID) so i thought maybe it's a security thing on my router so i set it up again and nothing changed ....... reset the router and now i could see it ......... so far so good setup the router again to change the security and things tried to reconnect nothing is shown .... so i let down my n900 for a while then tried again ........ it is showing my SSID made a connection installed updates etc ...... today I am unable to get a connection whatsoever ........ tried and changed the security from wpa2 to wpa with tkip or aes nothing ............ does anyone knows what might be wrong
PS:
All my other devices see the router all time (laptop, htc, e90 etc)
and when my network don't show the networks around are visible on N900.
thank you for taking the time on reading my thread and helping.

Have similar problem with one network. If I get out of its reach without disconnecting (or disabling wifi) it will not show up again until rebooting (restarting wifi, changing driver doesn't help), though once or twice connecting to gprs/3G allowed it to show up again (erratic behaviour). It happens only with this network and not always can be recreated.

well rebooting my device didn't solve my problem it's the kind of things that you do it without thinking but this is really weird as if the n900 got and attitude or just hate the router sometimes it shows sometimes it don't .........

is there any command line that might help solving this problem I tried stop wlancond iwconfig wlan0 mode managed start wlancond but this didn't help .

In my case once or twice connecting for a moment through gprs/3g and disconnecting allowed me to find the network again. But last time it disappeared it didn't work, so really not sure if maybe something in the background caused the fix.

is there any wifi manager you believe might be a better help from the one built-in although i don't know if this helps ............. or maybe a fix for wifi manager built-in.
Hopefully someone with a knowledge might help us both....

ok it seems I sorted out
So far am connected since yesterday "not continuously" been disconnecting then connecting etc
What I didn't do when I was setting up the router in the past days, trying to solve this issue is giving a static channel, it was set to auto all the time, yesterday I set the channel to 10 and after more than 3 hours trying to get a connection without succeeding before that, the network is showing as it is suppose to be.