Internet sharing stopped working after restart

Hi,
I'm connected to internet via thunderbolt->rj-45 reduction. I need to share intenet connection to my iphone and ipad via wifi. It worked fine until I restarted mac. Now I can see mac is connected to internet and sharing is on. On my iphone/ipad I can see the wifi name - i'm even connected to this wifi - but when I want to browse some webpage, safari is loading forever (to timeout)..
The firewall doesn't matter, because it worked fine before restart and I didnt changed any settings.
I tryied to turn off and on the Internet sharing, change security settings, restart wifi DHCP settings but nothing worked.
I tryied to set static IP's on mac and iphone/ipad but it still the same issue - devices can connect but internet doesn't work (loading forever).
I have OSX Moutain Lion 10.8.4 - Macbook Pro with retina
Any ideas?
Thanks

Asking for my own clarification. Are all three - computer and 2 devices - having trouble connecting?
Computer
Troubleshooting Wi-Fi issues in OS X
WiFi Security
Wireless Connection Problems - Fix
Wireless Connection Problems - Fix (2)
Wireless Connection Problems - Fix (3)
Wireless Connection Problems - Fix (4)
Wireless Diagnostics - About

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