Could some confirm ZA is limiting gigabit speed?

Anyone familiar with Iperf can try this:

1) on the server pc run iperf -s -w 65000
2) on the client pc run iperf -c x.x.x.x -w 65000

you can get the tool here

Notes:
- the x's represent the IP-address of the server. For instance 192.168.1.10
- I disabled all security software on the server pc
- I disabled all security software on the client pc (fresh install so I only disabled windows defender and the windows firewall).
- I ran a test with ZA enabled on the client, and ZA disabled. ZA was not present on the server.
- I swapped the server PC for a laptop and got the same results

No, they did not try to replicate. The support representative was not very skilled in the technical department and could not make sure an engineer would even take a look at my problem because 'there are no known issues'.

Ps: I got around 930 megabit between client and server(s). Both devices were connected to the same switch with cables of less than 3 metres.
With ZA enabled my speed dropped between 170 and 200 megabit.

Thans,
Jeroen

~Off topic comment removed~

 

Drop in speed is to be expected as ZA will need to process the packets. Would happen with any firewall to some extent.

 

I agree, but a drop to 200 megabit? I don't think that is acceptable.