Be aware of check scam.
4Net Networking Corp. is an exports company and has limited business in the USA. If you received a check from 4Net Networking Corp., it is most likely a scam made by an unknown party using counterfeit checks.
Feel free to contact us for further information. Do not deposit or attempt to cash it.
This seems to be an internet crime, and in case you enrolled or was contacted in relationship with some website in order to get paid by such check, we recommend you file a case at www.ic3.gov and/or look for local authorities to get proper advice.