I updated my macbook to lion and now have issues. should i downgrade to lion?

i updated my macbook to lion and now have issues. should i downgrade to lion?
they are;
1. my sound sometimes mutes it self (sound control grayed out) or it switches rapidly from interior speakers to headphones.
2. i keep getting "session time out" and am diconected from my wifi.
thanks kit

While we all have MacBooks in this forum most of us don’t run Lion. There's a Lion Support Community where everybody has Lion. You should also post this question there to increase your chances of getting an answer. https://discussions.apple.com/community/mac_os/mac_os_x_v10.7_lion

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