ansys启动出错,请高手帮忙

ansys启动出错,请高手帮忙 .今天装了 一启动就是这样
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Product: ANSYS/Mechanical U (feature 'ane3f1')

Checkout failed for the above product.
FLEXlm error message:

Cannot find SERVER hostname in network database (-14,7:11005"winsock: valid name,but no record(NO_ADDRESS)")

Servers/license files searched:
1055@420-3825BA2C363
1055@420-3825BA2C363

(For additional licensing debug details, set the ANS_FLEXLM_DEBUG
environment variable to '1' before running this product. For
maximum licensing debug details, set this environment variable to
'2'.)