# Can not retrieve a 416 x 416 matrix for cycling-regular

**URL:** https://ask.openrouteservice.org/t/can-not-retrieve-a-416-x-416-matrix-for-cycling-regular/3574
**Category:** matrix
**Created:** [February 3, 2022, 7:10am UTC](https://ask.openrouteservice.org/t/can-not-retrieve-a-416-x-416-matrix-for-cycling-regular/3574 "2022-02-03T07:10:07Z")
**Posts on this page:** 1
**Showing post:** 2

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### Author: ![amandus](https://ask.openrouteservice.org/user_avatar/ask.openrouteservice.org/amandus/32/669_2.png) [@amandus](https://ask.openrouteservice.org/u/amandus)
#### Post date: [February 3, 2022, 9:09am UTC](https://ask.openrouteservice.org/t/can-not-retrieve-a-416-x-416-matrix-for-cycling-regular/3574/2 "2022-02-03T09:09:21Z")

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Hi @weli,

please read existing forum entries prior to posting a new topic!  
There is a search function (magnifying glass) on the top right.  
There are already:

> [@\[6099\] Unable to compute a distance/duration matrix (foot-walking)](https://ask.openrouteservice.org/t/6099-unable-to-compute-a-distance-duration-matrix-foot-walking/2650):
>
> Hello, I’m using openrouteservice with docker. I can get a matrix with “driving-car” all right, but I struggle to get the same matrix with “foot-walking”. Profiles “car” and “walking” are actives. When I try to get the matrix with “foot-walking” I have the following error : “{“error”:{“code”:6099,“message”:“Unable to compute a distance/duration matrix.”}…” Here is my request code (with Python): body = {"locations":locations,"metrics":["distance", "duration"],"units":"m"} headers …

> [@\[6099\] Unable to compute distance/duration matrix](https://ask.openrouteservice.org/t/6099-unable-to-compute-distance-duration-matrix/2863):
>
> Hello guys, I use the ORS API services in multiple applications. Suddenly the matrix API stopped working for the foot-walking profiles. It works normally for the other profiles, but the foot-walking always return 6099 for the coordinates I am testing. Even in the ORS api playground, turning the path variable from driving-car to foot-walking makes the response to have only 0 distance/duration results, which is totally wrong and different from the driving-car values. My request test: POST to [http…](https://api.openrouteservice.org/v2/matrix/foot-walking)

and

> [@\[6099\] Unable to compute a distance/duration matrix](https://ask.openrouteservice.org/t/6099-unable-to-compute-a-distance-duration-matrix/261):
>
> Hi, Great API, with the R interface this works like a charm. However, I am computing lots of 50x50 duration matrices by car in French municipalities, and I stumbled on this [6099] error in a particular one. I understand that this means that the routing algorithm failed on one of the origin/destination pair. However I don’t know how to debug it and identify the faulty pair without throwing 2500 requests and see which one fails. How would you proceed to debug such a situation ? These computation…

but that last one might be too old to be relevant.

If the proposed solutions there don’t help, please provide more information like you suggested:  
ors-config.json (or app.config), log files (as seen in one of the other posts) as well as the actual request you sent.

Best regards

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_[View the full topic](https://ask.openrouteservice.org/t/can-not-retrieve-a-416-x-416-matrix-for-cycling-regular/3574)._