How to anchor a glass patio table to my lawn?

Have a heavy iron patio set with an umbrella stand that weighs 30 pounds. Problem: when it is a little breezy the umbrella tips the table over. The umbrella is secured properly and the table is on a flat even surface. Any ideas before my glass table is ruined?How to anchor a glass patio table to my lawn?
How is the umbrella secured? The base should be heavy enough to prevent that. In any case, you could try some heavy duty tent stakes at each table leg to see if that helps. Or, depending on how the base is made, you could either add addition weight to it. I'm assuming since the patio is on grass you move it often? If not, you could pour a concrete footing under the base, and attach it that way.How to anchor a glass patio table to my lawn?
Use two dog tie down augers, made to stake out a tethered dog, available at pet supply stores. That with two bungy cords will do it. You could stake down just the umbrella stand as an alternative.