Hi Richard
Different Nigel here, but thanks for your responses and yes, it would be
nice to be able to set a limit to the attempts and number of requests,
as per your OPT OUT suggestion.
---
Regards,
Nigel Berjak
Please consider the environment before printing this email.
On 2025-10-17 12:19, Richard Duivenvoorde via QGIS-User wrote:
Hi Nigel,
If your project contains a lot of online layers, there may be a chance
that some of them 'time out'.
I know of service providers that do not allow more then one or a few
simultaneous connections from one client or IP address to their
services (while QGIS is firing a whole set of them just to retrieve all
layers in the project).
I'm also aware that service providers do 'throttling' of services: if
you do more the x requests met minute, you get a sort of handicap to
not request so much.
If I were you I would try to set the Options/Network/Timeout for
network requests (ms) to something higher then the default 10s (10000
ms!). Try to set it to a very high value and see if that helps.
If not, then QGIS could maybe try to not fire so many requests at a
time upon opening.
Eg only the visible layers first (and the invisible ones after loading
the project).
If so, it would be best if you create an issue and provide a (big)
example project file with (preferably open) services and all your
network settings. But please first try to play with the 'network
timeout'...
Another tip: F12 can show you all network requests that QGIS if firing.
IF a layer is failing to load, but the corresponding url's of the layer
to the service load in for example a browser, then you can at least
tell that it is not the service that is an issue...
Earlier I also have said that I would want to have an option to opt OUT
of the requesting the 9 canvases around current mapcanvas. This is
often a unnecessary number of requests, just making providing a web
service harder...
Regards,
Richard Duivenvoorde
On 17-10-2025 11:39, Nigel Cowlin via QGIS-User wrote:
Hi,
Not sure if this is the correct place for this kind of query - sorry
if it is not!
I'm using QGIS 3.34.7-Prizren and have a multi-layered project I
regularly use. It includes locally saved layers of various types and
quite a few web provided layers such as ArcGIS REST, WFS, WMS, WCS,
etc. On reopening the project several of these web provided layers
show on the 'Handle Unavailable Layers' pop up and are unavailable in
the project. It is random which ones each time. Sometimes they are
stubbornly difficult to restore (reconnect/repair data source). There
is nothing wrong with the source of these layers. Do you know why this
is and can you suggest a solution?
Thank you.
Nigel
Nigel Cowlin BA(Hons) DipLA CMLI
Director
*NIGEL*COWLIN LTD
Landscape Assessment & Design
07747 606533
[email protected] <mailto:[email protected]>
www.nigelcowlin.co.uk <http://www.nigelcowlin.co.uk>
Maltwood, 6 Lamarsh Hill, Bures, CO8 5EH
A Landscape Institute Registered Practice.
Nigel Cowlin Limited - Registered Company in England & Wales No:
07628668. Registered Office: Maltwood, 6 Lamarsh Hill, Bures St Mary,
CO8 5EH
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