Most likely it is a glow bar igniter issue. The glow bar will glow but as it wears out the amperage draw changes and when it gets to a certain point it will not allow the gas safety valve to open any more.

Typically a glow bar lasts 5 to 7 years depending on usage.

Pretty easy fix.

Thanks Jakvis... I may be rethinking replacement of the unit, especially if it just a $30 part. So this bad igniter would impact broiler function as well?

I found this video on You Tube, is this fix you refer to?

https://www.youtube.com/watch?v=BWrqsbWP2jo

I believe on that unit that the broil and the bake are 2 separate burners which have 2 separate igniters. Both igniters are similar but I think the broil might be a different part number with a longer ceramic base.

Depending on how the range is used both going out a close to the same time may not be unusual. We broil almost as much as we bake so in my case both igniters going out close to the same time would be normal.

The video is good and shows basically how you would perform the repair.

Oooh, not a $30 part after all. I found the part numbers and there are 2 separate igniters as you suspected. Cost for both is about $240 for my particular model. That plus cost of appliance repairman (or me spending half a day as it is not at my residence) has got me strongly leaning towards just getting a new one for ~$500.

Thanks Jakvis for helping me locate the likely trouble area and making a more informed decision.