Help with LAN preview

Hi all,

help needed ! ! !

I had my LAN preview working fine for some time now but today suddenly all went to shit.

Wierd thing is...

all works in NW.js - preview starts and it reads remote server data

in Chrome preview starts but don't get data from remote server ...but if i type direct URL it reads it properly

in Edge preview http://192.168.1.73:50000 page cant be reached!? wtf???

I am confused!? <img src="{SMILIES_PATH}/icon_mad.gif" alt=":x" title="Mad">

Can anyone help?

update:

EDGE console shows this error:

microsoft.microsoftedge/assets/errorpages/dnserror.html

FYI if someone else encounter this issue:

run command prompt as admin and execute this:

CheckNetIsolation LoopbackExempt -a -n=Microsoft.MicrosoftEdge_8wekyb3d8bbwe