Posting Data Going Blank

Hey Mates,

I am facing a problem when posting "Data Forms" on my server. And when I post some form, it's not submitting in a single time.

I am facing this problem on each app installed on the server like

APP ONE - WordPress

• when creating a post and publishing via clicking on publish button, data not submitting and all post written content lost
• When updating a post and click on the update button, data not posting so, no update made

And some time data post in single time, sometimes it takes 2 or 3 times to submit.

APP TWO - aMember (membership management script)

• When I reply on the customer support ticket, sometimes data post in single time, sometimes it takes 2-3 time. Like most of the time reply go blank.

Maybe this problem related to server responses like HIT or MISS. Maybe any resources on the server not taking or sending the response in time. OR lack of resources.

And all posting data in a simple format like in the text, image, links only. Not any critical or long data which cross the limit.

I have a Linode 2GB plan.

Any help is really appreciated. Maybe any rescue optimization will fix this issue.

Thanks
A WP Life