Has anyone seen this before?

Netbackup 5.0 mp3 Solaris9 connected to L700 via fibre.

I have a network client on a 100Mb network which is beyond slow backing
up. Looking at the gui ( i know not accurate ) details for a job shows
like 127kb/s.

Doing an scp of a 128mb file from master server to the client is quick <
20 secs.
Doing an scp of the same file from client to master it gives ETA of over
an hour, which comes down to like 20-30 minutes. Obviously wrong.

So first thing on the solaris client i did was force the nic to 100 full
autoneg off. Then doing an scp seems to be quick both ways. Great.

Then launch a manual backup off for the client only and the speed is
slow. 127kb/s again.

going back and trying the scp is now slow again from client to master
server.

Whats going on?