Access denied error when trying to clone github public repository

​Hello Team,

I am using GitHub desktop v1.6.5 and git version 2.21.0.windows.1 on Windows 7 with Service pack 1. I have 2 GitHub accounts, one is ean nterprise which I am able to clone using GitHub desktop and I've another personal account which is throwing me the below error when I try to clone a repository:

"Closing into ''....

fatal:unable to access 'https://github.com/abhilashhm/git-integration-public.git/': schannel: next InitializeSecurityContext failed: SEC_E_ILLEGAL_MESSAGE (0x80090326) - This error usually occurs when a fatal SSL/TLS alert is received (e.g. handshake failed). More details may be available in the Windows System event log."

The repository is public but I am unable to clone it. And we have an agent which connects to GitHub and pulls the scripts from there and I am unable to access it from our agent and get the below error:

"Failed to retrieve branch information from specified repository.

fatal: unable to access "https://github.com/abhilashhm/git-integration-public.git/": error:14094419:SSL routines:ssl3_read_bytes:tlsv1 alert access denied"

I tried passing the git URL with and without creds but I get the same error. Please suggest.

Other users are able to connect to their public repositories while I am only able to fetch my corporate account repositories but not personal account repositories. [Unable to post images as I do not have enough reputation points].