Something wrong after update 2.4.3

[Murali]

since update 2.4.3 the internet speed goes down.but we don't limit the speed  the download speed is high but upload speed is poor how to fix this issue..

[stephenw10]

A lot more info needed.  ;)

What version did you upgrade from?

What hardware are you running on?

Do you see any errors/collisions reported in Status > Interfaces?

Steve