Single WAE \ WCCP \ Dual Routers - Slow Accelerated Traffic

Question

Our standard WAE design was to have dual WAE's at sites with dual Routers.
The WAE's are either 674's or 574's and the routers are Cisco ISR's all works well.
Several new sites have coome online but these sites now only have a single WAE devcie and two WAN routers.  Some users at
The issue I have now is that some "Accelerated" sessions via the WAE devices are reported by users as being very slow. When those sessions are removed from WAAS policy and set to pass through the user reports normal access again.
On looking at the problem I have possibly identified that the lack of the command;
ip wccp redirect exclude in on the router interface
But this command was never applied to the exisiting design, though potentialy under normal conditiaon where both routers and both WAE's are working it's never been a problem.
From Cisco;
In any scenario where egress redirection is used, the command above MUST be issued on the router interface adjacent to the WAE. This command, "ip wccp redirect exclude in", ensures that packets received on the interface are not redirected again. This prevents an optimized packet from being rerouted directly back to the WAE. Instead, with this command applied, the router would simply see the packet coming in and forward it normally (WCCP would be bypassed for packets received on that interface).
The WAE's are NOT L2 connected to the Routers so the following config is applied,
rtr no 1
ip wccp 61 redirect-list WAAS
ip wccp 62 redirect-list WAAS
ip cef
interface GigabitEthernet0/0
description *** Data LAN
ip address x.y.7.6 255.255.255.192
ip wccp 61 redirect in
ip wccp 62 redirect out
rtr no 2ip wccp 61 redirect-list WAAS
ip wccp 62 redirect-list WAAS
ip cef
interface GigabitEthernet0/0
description *** Data LAN
ip address x.y.7.1 255.255.255.192
ip wccp 61 redirect in
ip wccp 62 redirect out
WAE Configprimary-interface Standby 1
interface Standby 1
ip address x.y.7.65 255.255.255.192
interface GigabitEthernet 1/0
standby 1 primary
exit
interface GigabitEthernet 2/0
standby 1
exit
wccp router-list 1 x.y.7.1 x.y.7.6
wccp tcp-promiscuous router-list-num 1
wccp version 2
Option 2 below is used.  But all sites have DUAL Routers.  Note Redirect Exclude is NOT configured.
Thanks in advance for any support offered.

Answer 1

Thanks for your post, details below.
What do you mean by "sessions removed from WAE policy" ? Are you configuring static bypass on the WAE or are you excluding specific traffic with the WCCP redirect list ?
I am defining certain traffic as Passtrough via a ststic bypass on the WAE’s
- check if the slowness affects all the redirected traffic or just particular sources/destinations/applications
      Recent testing has identified it just seems to affect a certain share, which I am investigating as this share has some kind of "Archive" solution in place.
- make sure that the WCCP redirect ACL matches both directions of the connections
      It does
- check the redirect / return method that is being negotiated
      All OK     
- make sure both routers are seeing the WAE via WCCP
      Yes they are
- check for "routing loop" in the WAE syslog.txt to understand if the WAE is receiving some traffic twice
      Investigating and will post reply. 
Are the affected connections showing up in the "show stat connection" output on the WAE ? If so, are they optimized or PT ?
     They show as fully optimized when configured for the CIFS AO, but revert to PT when the static WAE policy is altered.