Problem on accessing front page on local Network

[Nadeem Sohail]

Dear All, 

I just installed DSpace 7.5 over Ubuntu 22.04 with all prerequisites software.

-  yarn 1.22.17

-  node -v v16.13.0

-  npm -v   8.1.0

I am able to access the back end using  http://192.168.15.32:8983/solr/#/ on LAN

But I am unable to access page(Angualr) using http://172.21.6.150:4000/ on LAN

Please guide me how may I access the front end on LAN

Regards

Nadeem Sohail