WWW.EXFILE.COM, INC. -- 14909 -- NETWORK-1 SECURITY SOLUTIONS, INC. -- EXHIBIT 23.1 TO FORM S-8

We consent to the reference to our firm under the caption “Experts” in the Registration Statement on Form S-8 and the reoffer prospectus pertaining to the Network-1 Security Solutions, Inc. and to the incorporation by reference therein of our report dated March 13, 2006 related to the financial statements of Network-1 Security Solutions, Inc. for the year ended December 31, 2005 included in its Annual Report on Form 10-KSB for the year ended December 31, 2005 filed with the Securities and Exchange Commission.