I have tried channels 1, 100, 132.Did you try changing channels in the wireless router yet?
Why didn't you say that the first time.I have tried channels 1, 100, 132.
If ethernet is connectes, wifi icon also show connected. If I disconnect ethernet, wifi starts looking for networks and shows that exclamation mark on icon. Wifi never gets IP via DHCP. Manually setting IP won't work.
Yes. I even deleted my networks from there and connected again. It even asked me WPA password again.Why didn't you say that the first time.
Did you go into the affect Mac System preferences->Network, Wi-Fi side channel, Advanced button and see if the Preferred Network at you want to connect to is present.
Not to sound harsh, but if you need to get work done why did you install a beta 1 version of an OS?
25 Minutes so far on a 2.4Ghz N Router without dropping out, but i was downloading iPhoto and iMovie, so it was under load.15" rMBP here with no WiFi problems (so far), connected to a 2.4GHz N router.
I did this on my Mac Mini and it fixed the issue for me to my Windows SMB shares. It's a good workaround which keeps your wifi from dropping out, and prevents disconnection of your shares. Basically a ping to your router.I only had it drop out once on me yesterday. That's not terrible. I wouldn't care, except I have my iTunes on my NAS, and I don't want to drop the connection while I'm connected as it can corrupt things.
Once a day isn't bad though, so I'm not worried about it. I'm sure it will get fixed soon.