Strange FTP Session Problem


We have two different projects ftp’s files to mainframe on two different GDG’s using the Same Userid/Password. I am using quote command to set the record size and block size on the mainframe while ftp’ing file from IS 4.6.

Service1 - Quote Rec Size 1024 Block Size 27300

Service2 - Quote Rec Size 1000 Block Size 27300.

Last week at one point both services were running at the same time and it SWAPED the REC SIZE Parameter while ftp’ing. So the Service2 used Rec Size 1024 and Service1 used Rec Size 1000. This problem happened only once. I am wondering anybody experienced this problem before.