Hi @Srichandana,
Thanks for joining us here in the Roku Community!
We'd like to be of support here. Channel playback issues could happen sometimes. In addition to the troubleshooting steps you've taken. We would recommend trying to use an alternative network, like a mobile hotspot, and see if it helps.
For additional troubleshooting, we would suggest taking a closer look at some troubleshooting here: How to resolve a channel playback issue.
Thanks,
Rey
ERey.
Roku Community Moderator