Looking on the internet deeply has found these results:

advise on is the most popular phrase on the web.

advise as to 1434,000 results on the web	advise on 115,000,000 results on the web More popular!
Some examples and use cases from the internet:	Some examples and use cases from the internet:
It doesn't look like this phrase is very popular! The search could not find any examples on the internet.	I don't know why you pay me to advise on these matters. Now this is Louise, she can advise on international diplomatic protocols, same goes for Samuel... Hang tight till I advise on the kid. He wants my advise on a patient of his. We also advise on choice of transformer components. Hang tight till I advise on the kid. They will also be able to advise on a further course of action. He gave us good advise on where to watch the fireworks on July 4th.

advise as to

1434,000 results on the web

advise on

115,000,000 results on the web

More popular!

It doesn't look like this phrase is very popular! The search could not find any examples on the internet.

I don't know why you pay me to advise on these matters.
Now this is Louise, she can advise on international diplomatic protocols, same goes for Samuel...
Hang tight till I advise on the kid.
He wants my advise on a patient of his.
We also advise on choice of transformer components.
Hang tight till I advise on the kid.
They will also be able to advise on a further course of action.
He gave us good advise on where to watch the fireworks on July 4th.