I'm having this problem too. TravelDirections worked for me two weeks ago. Now it doesn't. I tried updating to 10.3.1 but issue persists. I just sent a "feedback" message about the issue to Wolfram and will post any interesting response.

Thank you David.

Not your problem but...unfortunately for me, Wolfram fixing it "in the next release" is not good enough. I rely on the function in code I just wrote for a charity fundraiser happening next week (my scout troop will collect Christmas trees from 500+ homes in one day).

I'm further frustrated and disappointed because I purchased the last upgrade because of the new geographic information functions. Now I have to write my own TravelDirections function, just as I had to write my own version of FindGeoLocation for street addresses. To be fair, the Mathematica Documentation states only that FindGeoLocation["address"] "attempts to find the geo location associated with the street address given"

Hello David, that is interesting, thank you for clarifying! I was thinking about upgading to v10.3 just because of those new functions ...

Regards -- Henrik

In addition: it's strange because the 10.3.1 update specifically fixed some bugs with TravelDirections...

Hi @Ilian Gachevski , just kidding!

In the end, I don't care! The major.minor.patch updates are bigger than the major update of Matlab ;) In the end, the numbers doesn't really matter of course, the only big difference is a new logo or not ;)

I am experiencing that problem quite regularly, e.g. in the context of AnatomicalStructure. My interpretation is that this timeout were due to my slow internet connection. I then have to try several times before I eventually get all the data. It would be interesting to know if this is the real reason.

This is not (I believe) a calculation that involves alpha calls: TravelDirections is a part of the Wolfram Language itself, though it requires cloud access to function.

However, I notice that the first example in the Documentation Center for TravelDirections,

TravelDirections[{Entity[ "City", {"Miami", "Florida", "UnitedStates"}], 
  Entity["City", {"NewYork", "NewYork", "UnitedStates"}]}]

also fails with $Failed["ComputationTimeout"] so something must be amiss with the server.

Something for the developers to attend to, I think!

I suspect that TravelDirections is simply broken at the current time.