<PAGE>
                                                                   Exhibit 10.2


                    AMENDMENT TO LEASE TERMINATION AGREEMENT

         THIS AMENDMENT TO LEASE TERMINATION AGREEMENT (this "Amendment") is
made as of the date on which the final signature to this Amendment is affixed
hereto, by and between FLAGLER DEVELOPMENT COMPANY, a Florida corporation
("Landlord"), and TRITON NETWORK SYSTEMS, INC., a Delaware corporation
("Tenant").

                              W I T N E S S E T H:

         WHEREAS, Landlord and Tenant entered into a Lease Termination
Agreement dated as of July 16, 2001 (the "Agreement"), relating to the
termination of that certain Lease as more particularly described in the
Agreement;

         WHEREAS, Tenant surrendered the Premises to Landlord on July 13, 2001,
prior to the scheduled Termination Date;

         WHEREAS, Landlord and Tenant desire to amend the Termination Date, as
defined in the Agreement, to reflect the actual date of termination of the
Lease;

         WHEREAS, Landlord and Tenant desire to amend the Agreement as set
forth herein;

         NOW, THEREFORE, in consideration of the mutual covenants and promises
contained herein and for other good and valuable consideration, the receipt and
sufficiency of which are hereby acknowledged, Landlord and Tenant agree as
follows:

         1.       RECITALS.  The above recitals are true and correct and agreed
                  to by Landlord and Tenant as if such recitals were again
                  fully set forth herein.

         2.       DEFINED TERMS.  Any capitalized term utilized in this
                  Amendment that is not defined herein shall have the meaning
                  ascribed to the same in the Agreement.

         3.       AMENDMENT OF AGREMENT.  The Agreement is hereby amended as
                  follows:

                  (a)      The Termination Date is hereby amended to mean July
                           13, 2001.

                  (b)      Upon the full execution of this Amendment, Landlord
                           shall remit to Tenant the sum of $40,670.00,
                           representing Tenant's prorated share of its July
                           2001 Base Rental and Additional Rental payments (as
                           such terms are defined in the Lease).
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        4.     EFFECT OF AMENDMENT. This Amendment amends the Agreement as
               specifically set forth herein, and in the event of any conflict
               or inconsistency between this Amendment and the Agreement, this
               Amendment will be controlling. Except as specifically amended by
               this Amendment, the Agreement shall remain in full force and
               effect as written.

            IN WITNESS WHEREOF, Landlord and Tenant have executed this
Amendment as of the date set forth above.

                                                  "LANDLORD"

                                                  FLAGLER DEVELOPMENT
                                                  COMPANY, a Florida corporation

Witness: /s/ Susan C. McMillian                   By: /s/ G. John Carey
         ----------------------                       --------------------------
Print: Susan C. McMillian                             G. John Carey
      -----------------------                         President

Witness: /s/ Tracey L. Mickey                     Date: 8/27, 2001
         --------------------                           ------------------------
Print: Tracy L. Mickey
      -----------------------                           [CORPORATE SEAL]


                                                  "TENANT"

                                                  TRITON NETWORK SYSTEMS, INC.,
                                                  a Delaware Corporation




Witness: /s/ Michael B. Glover                    By: /s/ Ken Vines
         ----------------------                      --------------------
Print: Michael B. Glover                             Ken Vines
       ------------------------                      Senior Vice President


Witness: /s/ Jim Harris                           Date: 8/23, 2001
         ----------------------                       --------------------
Print: Jim Harris
       ------------------------                         [CORPORATE SEAL]