Wireless connection lost after awakened from sleep.

I have the 2 month old 17" 2.16Ghz Macbook Pro Core Duo. Whenever I put the unit to sleep the wireless connection is lost when awakened. The Airport preferences pane shows a full strength signal and a base station ID but I cannot load a webpage, get or send emails, and ftp connections are broken. If I plug in an ethernet cable All is well again.
The ony way to restore the wireless connection is to either restart OR logout and log back in.
Any suggestions?
THANKS

Do this.
Open network preference panel
Select Airport on Show: drop-down menu
Select Airport tab
Select Peferred networks as the Join by default: item
Delete your network
Close preference panel
Reopen Network panel
Return to Join by default: and add your network
Press Apply now.
That should do it

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iMac (27" late 2013) running Yosemite 10.10.
Ethernet connection direct to the computer from the FIOS router.
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After about 20 seconds it finally reconnects.
Under Mavericks it never lost the connection by sleeping - was instantly connected upon wake up.
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Update on my situation.
I have tried many things to get this fixed including:
SMC reset (for an iMac this means unplugging it, waiting, and plugging back in)
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So while not crippling, these 15-20 second waits are very annoying.
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Message was edited by: KEForex
Message was edited by: KEForex

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Apr 12 12:07:13 iMac kernel[0]: **** [IOBluetoothHCIController][TransferACLPacketToHW] -- commandSleep(&mSystemOnTheWayWakingUp) failed -- counter = 1 ****
Apr 12 12:07:23 iMac kernel[0]: **** [IOBluetoothHCIController][TransferACLPacketToHW] -- commandSleep(&mSystemOnTheWayWakingUp) failed -- counter = 2 ****
Apr 12 12:07:33 iMac kernel[0]: **** [IOBluetoothHCIController][TransferACLPacketToHW] -- commandSleep(&mSystemOnTheWayWakingUp) failed -- counter = 3 ****
Apr 12 12:07:43 iMac kernel[0]: **** [IOBluetoothHCIController][TransferACLPacketToHW] -- commandSleep(&mSystemOnTheWayWakingUp) failed -- counter = 4 ****
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Apr 12 12:08:03 iMac kernel[0]: **** [IOBluetoothHCIController][TransferACLPacketToHW] -- commandSleep(&mSystemOnTheWayWakingUp) failed -- counter = 6 ****
Apr 12 12:08:13 iMac kernel[0]: **** [IOBluetoothHCIController][TransferACLPacketToHW] -- commandSleep(&mSystemOnTheWayWakingUp) failed -- counter = 7 ****
Apr 12 12:08:23 iMac kernel[0]: **** [IOBluetoothHCIController][TransferACLPacketToHW] -- commandSleep(&mSystemOnTheWayWakingUp) failed -- counter = 8 ****
Apr 12 12:08:33 iMac kernel[0]: **** [IOBluetoothHCIController][TransferACLPacketToHW] -- commandSleep(&mSystemOnTheWayWakingUp) failed -- counter = 9 ****
Apr 12 12:08:43 iMac kernel[0]: **** [IOBluetoothHCIController][TransferACLPacketToHW] -- commandSleep(&mSystemOnTheWayWakingUp) failed -- counter = 10 ****
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