First off let me welcome you to Techimo.
Now a few quick questions
1) did you reinstall all the drivers for your system
2) is your network card actually working
3) is this a wired connections or are you connecting wirelessly
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“Every question involves someone having to work for an answer, isn't it about time you did your share”
"Non-technical questions sometimes don't have an answer at all."
Linus Torvalds | 
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