Exhibit 23.1 CONSENT OF INDEPENDENT PUBLIC ACCOUNTANTS As independent public accountants, we hereby consent to the incorporation of our reports dated April 9, 2001, included in this Form 10-K (which contains an explanatory paragraph regarding Nx Networks, Inc.'s ability to continue as a going concern), into Nx Networks, Inc.'s (formerly Netrix Corporation) previously filed Registration Statements on Form S-3 (File No. 333-96165), on Form S-8 (File No. 333-93343), on Form S-8 (File No. 333-93349), on Form S-3 (File No. 333-81109), on Form S-8 (File No. 333-22149), on Form S-3 (File No. 333-53901), on Form S-3 (File No. 333-42608), on Form S-3 (File No. 333-53852), and on Form S-8 (File No. 333-53844). ARTHUR ANDERSEN LLP Vienna, Virginia April 9, 2001