Hi @Pawan Rai ,
Something you can do to try to solve this issue:
Connect to the server where your distribution db resides, right click on the replication folder and select distributor properties, select publishers, uncheck the already entered your publisher and select OK, add a new publisher, enter a password for administrative link, then connect to your publishing server and create a new publication using the remote distribution, enter the password you used earlier when assigning the publisher in the distribution properties
Or try to remote access was disable
check if the Run_value under the remote access option is set to 1, if not try to, and restart SQL instance
sp_configure ‘remote access’, 1
-------------
If the answer is the right solution, please click "Accept Answer" and kindly upvote it. If you have extra questions about this answer, please click "Comment".
Note: Please follow the steps in our documentation to enable e-mail notifications if you want to receive the related email notification for this thread.