NETMON 3.2 Capture HTTP and SQL Server Traffic

Hi All,
I'm trying to capture http and sql traffic to/from an app server.
I'm running Netmon 3.2 on the app server.
http traffic is between a client and the app server.
sql traffic is between the app server and the ms sql server.

I've set up a filter to only capture traffic from the three systems and just
http and sql server traffic.
However, the only traffic being captured is the http traffic between the
client and app server.

Can someone review the filter below, and tell me where I'm going wrong?

TIA,

Paul

(( IPv4.Address == 192.168.100.177 AND IPv4.Address == 192.168.100.157)
OR (IPv4.Address == 192.168.100.177 AND IPv4.Address == 192.168.100.173))
AND
( Tcp.SrcPort == 80 or Tcp.SrcPort == 1433 )

I've also tried just ( Tcp.SrcPort == 80 or Tcp.SrcPort == 1433 ), leaving
out the Address filtering, and still only the http traffic is being picked
up.