We are using Axis Network cameras, and when i ping the camera the response is as follows: ping 10.18.52.77 -t

Microsoft Windows XP [Version 5.1.2600]
(C) Copyright 1985-2001 Microsoft Corp.

N:\>ping 10.18.52.77 -t

Pinging 10.18.52.77 with 32 bytes of data:


Reply from 10.18.52.77: bytes=32 time<1ms TTL=64
Reply from 10.18.52.77: bytes=32 time<1ms TTL=64
Reply from 10.18.52.77: bytes=32 time<1ms TTL=64
Reply from 10.18.52.77: bytes=32 time<1ms TTL=64
Request timed out.
Reply from 10.18.52.77: bytes=32 time<1ms TTL=64
Reply from 10.18.52.77: bytes=32 time<1ms TTL=64
Reply from 10.18.52.77: bytes=32 time<1ms TTL=64
Request timed out.
Reply from 10.18.52.77: bytes=32 time<1ms TTL=64
Reply from 10.18.52.77: bytes=32 time<1ms TTL=64
Reply from 10.18.52.77: bytes=32 time<1ms TTL=64
Reply from 10.18.52.77: bytes=32 time<1ms TTL=64
Request timed out.
Request timed out.
Request timed out.
Request timed out.
Request timed out.
Reply from 10.18.52.77: bytes=32 time<1ms TTL=64
Reply from 10.18.52.77: bytes=32 time<1ms TTL=64
Reply from 10.18.52.77: bytes=32 time<1ms TTL=64
Reply from 10.18.52.77: bytes=32 time<1ms TTL=64
Reply from 10.18.52.77: bytes=32 time<1ms TTL=64

I have another cam on the same switch that has the same response times but doesn't drop out as much.

The switches are all Zyxel and all have up-to-date firmware. as that's the first thing i tried.

haven't configured any VLANS.