[CASSELS BROCK logo]

                                                        cmingay@casselsbrock.com
                                            Writer's Direct Line: (416) 860-6615
                                                       Direct Fax (416) 640-3163
                                                            Our File No. 28301-1

January 12, 2005

Mr. Bruce Sinclair
President and Chief Executive Officer
WaveRider Communications Inc.
255 Consumers Road, Suite 500
Toronto, Ontario M2J1R4

Dear Bruce:

Regretfully, I must tender my resignation from the Board of Directors of
WaveRider Communications Inc. I am taking this action as a result of our firm
policy regarding outside directorships as a consequence of the increasing
emphasis on director independence contained in recently announced legislative
and stock exchange initiatives.

I have benefited tremendously from the experience of working with my fellow
Board members over the past several years. Notwithstanding that I won't be
sitting as a Board member, I look forward to continuing to assist the Board in
any way I can.

Yours truly,

/s/ Cameron A. Mingay
- ---------------------
    Cameron A. Mingay