When using Internet Explorer and saving all your setups but it doesnt save and is reset to 1

I have had this problem 5 times now and it is getting annoying, i normally use Google Chrome to do my setups but it wasnt working at the time. Whenever i do my setups i click save but it doesnt save so i just keep clicking it till it saves but it doesnt, everytime i refresh the page, at least one of my drivers setups are reset to 1 and their stints are 1 with no fuel. i would like this bug to be fixed pls

Not only in xplorer...

I have 1 or 3 sec lag in my conection:

that Ajax code are buggy... sometimes i lost Practices... no results of previus settings... 

I restart the page several times and do all quicly before got bugged,, and waste practices.

I reload the page for check are all right before the race.

that causes me angry times sometimes.