Internet security provider

SonicWall

(SNWL)

said it expects to report a third-quarter loss due to a slowdown in product demand.

After certain charges, the company expects to lose between 3 cents and 5 cents a share, compared with a loss of 9 cents a share in the year-ago period. Before charges, the company expects to lose between a penny a share and earn a penny a share, compared with earnings of 8 cents a share a year ago. Analysts were expecting the company to earn 4 cents a share.

Revenue is expected to between $23 million and $26 million, down from last year's $27.8 million.

Shares of Sunnyvale, Calif.-based SonicWall closed at $3.61 Tuesday.