Django - Server only works in one browser until I restart it - django

I have a Django project (it's a big project meanwhile) and I can only connect to it via localhost using one browser (Chrome, Opera, Firefox, it doesn't matter which browser I use). When I connect to it once, Django is "locked" in this browser. When I try to connect to Django using another browser, it gets timed out. When I restart it I can again choice which browser I would like to use. But then Django gets "locked" again in this browser.
Example:
Django Server starts; I use Chrome; I can't use Opera, Firefox or any other browser anymore.
Django Server restarts; I use Opera; I can't use Chrome, Firefox or any other browser anymore.
I know this isn't a question about code but I don't know where this question fits except for Stackoverflow.
Do you have any idea?
EDIT
I also have this strange behaviour when I use incognito.
EDIT 2
I tried to reset the middlewares but that didn't change anything.

Related

django same localhost not responding in another browser or second instance

my new created django project working fine with this information
Django version 2.1.7, using settings 'django_server_api.settings'
Starting development server at http://127.0.0.1:8000/
Quit the server with CTRL-BREAK.
running fine
then i opened in one browser is loaded quickly working quickly.
but if i open same local host in another browser it is taking more than 5 minutes, i dont know what is the issues? may be django is like this? or do i need to change any config in the setting,py file ?
Some browsers (Firefox) has a problem browsing to localhost on some Windows machines.
You can solve it by switching off ipv6, which isn't really recommended.
Using 127.0.0.1 directly is another way round the problem.
Note : If there are heavy media is can also slow downs django

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