Strange error adding cable

[xav....@gmail.com]

I've come across a strange issue adding cables from one device (storage device to network switch).

If, from the storage device, I click on the add cable button, select interface and then pick the remote network switch's interface port, I get the following error:

<class 'dcim.models.cables.Cable.DoesNotExist'>
Cable matching query does not exist.

Python version: 3.8.5

NetBox version: 2.11.7 

However, if I go to the network switch device and do the same thing and go to add a cable back to the storage device, it works!

Any ideas? 

[Brian Candler]

If you've just deleted a cable, you may need to wait 15 minutes before reconnecting the port because of a caching issue.

The workaround is to set

CACHE_TIMEOUT = 0

in configuration.py (which will probably become the default in future, as the caching layer is planned to be removed)