Originally Posted by sunnysthakur
Yes i am referring to my local gateway and we have setup a NAT to access the internet from this server with in the office.
Currently i checked and firewall/Selinux linux is disabled on remote server.
Any other way to figure this out that this issue is from our end or remote end.
Oops. I read the word "somedays" as "sundays" and did not read completely. I guess i need to enlarge the font more. I removed my post since your gateway is via linux server, which I assume the linux is setup as a router.
Is it possible you are having an IPA conflict?
Meaning, that at one point or another one machine gets assigned (dynamic) or is assigned (static) the IPA that another machine has? If so, then what you describe could happen I believe.