Hi @Vaibhav_Sharma,
You need to make sure the hostname/service URL you provided during the configure phase is accessible from both the server itself and from any outside client you intend to use the admin I/Fs or playback from.
My guess is you provided a hostname/service URL that is NOT resolvable from the machine where you make the request from.
This can easily be checked by opening your browser’s dev tools and looking at the requests made in the “Network” tab, then making sure the host used is resolvable.
As for channels, I presume you meant categories? “channels” is a term relevant to Kaltura MediaSpace [based on categories] which I don’t believe you have since it is not FOSS.
If you do mean categories, you can see them under KMC->Content->Categories.
You can create a playlist consisting of all entries in a given category and embed that playlist anywhere you like.
This can be done from KMC->Content->Playlist.
If you’re asking about how you can create a custom page displaying all categories and the entries attached to each, you can use our API to create such pages, for that see:
https://developer.kaltura.com/api-docs/Enrich_and_Organize_Metadata/category
When calling media->list [https://developer.kaltura.com/api-docs/Ingest_and_Upload_Media/media/media_list], you can filter based on a given category name or ID, which will result in only entries belonging to that category being returned.
As I mentioned, we also have a proprietary product called Kaltura MediaSpace [KMS] for which you can see a demo here:
http://portal.mediaspace.kaltura.com/
If you’re interested in purchasing that, feel free to contact our sales team.