I am asked to navigate to a :1337 page but it doesn't load

If you have used that page before to setup your neuron credentials then that page is not available anymore.

If you want to resetup or relocate your device then follow the instructiions here How do I reset the neuron software?

This will re-enable :1337

If you have NOT used the :1337 page before then run trough the checks listed here Do this first: How do I know if the device is neuron enabled?