No MAC address for WiFi ?????

Hello everyone.

I have a very strange problem. When I check the settings of my phone, in the section 'Status' -> 'WiFi Mac address' the following message is displayed: 'Not available'.
As a result of that, obiously I can't connect to a network with Wifi

Does anyone has some suggestions?

I bought this phone 3 days ago, the first two days the WiFi connection worked in a normal way

Well, thats exactly what the problem is. There IS no MAC address. Where the MAC address should be displayed, there's simply the message 'Mac address not available'

I have exactly the same problem.
GT-I9000M 2.1-update1
Worked for 3 days then WiFi went blank, no MAC Adress (nor bluetooth device apparently)

 

Any updates on this problem?

Cheers.

*********  alright, don't reset or take to supplier to be repaired or fixed ********
generally you can have no mac address when you are not connected to wifi.  try looking up your dhcp client list on your wifi/router, then turn on the wifi on the sgs.  you should see your mac address appear in the client list of the router and like magic it should also appear on the phone, either in the wifi/advanced page or the phone status page, both in the settings section.
check it out   

When the MAC address is lossed (I do not know WHY this happens, but it happens) you need to reboot you Galaxy S (configurations > privacy > restore firmwhare settings). Your smart (?) phone will restart, the MAC address for Wifi hardware will be restored and your wifi net will work now. If not, look for technichal assistance in your area.
Be CAUTIOUS! ALL your apps, agenda,... may be lost during reboot!