I noticed that my adwords ads stop showing at a certain time, around 5pm.

1. I have no ad scheduling turned on
2. I have budgets open to 10x what they are spending
3. bids keep me at the optimum position (3-5) where most of my conversions happen.

what gives?

any suggestions?

take a look at your keywords in the ad your talking about. To the right of the keyword should be a little magnifying glass, if you highlight over it, it will tell you if your ad is running and if it's not it will tell you why. If after seeing this and you have the reason and your still not sure what it means, then just hit me back on here with the reason and I'll try to be of more help.

Hey spag, I had checked this be4 and it showed that I was over budget. However, my budget on each campaign is set to like $100 to $500.

However, the entire account seems to stop spending after $50-ish every day.

If I add more campaigns, it seems to distribute them to still only spend $50 for the entire account.

any clues?

this is what happens when your account is under review by google, they cap spending at $50.00 You can do a few things:
1. wait it out, they will eventually take you off review but it can be a few days to a week
2. give them a call. If you aren't doing anything wrong at all then call them and explain the problem and they can expediate the process.

I've done both methods in the past and they both worked.

Good luck

thanks for the heads up. I think I'll wait it out.