connection freezes and with dual WAN ECMP method

Hello Folks,

I have just configured a router with dual WAN and read almost all forums and configured as per suggestions and wiki help. The configuration is working but when a client start download it starts and then stops. The clients are coming via PPPoE. The issue resolves by starting and stopping download.

Any suggestion?

/IP Route:

++++++++++++++++++++++++++++++++++

DST-ADDRESS PREF-SRC GATEWAY-STATE GATEWAY DISTANCE INTERFACE

0 A S 0.0.0.0/0 reachable 192.168.2.1 1 WAN1
1 A S 0.0.0.0/0 reachable 192.168.1.1 1 WAN2
2 A S 0.0.0.0/0 reachable 192.168.1.1 2 WAN2
reachable 192.168.2.1 WAN1
+++++++++++++++++++++++++++++++++

0 chain=input action=mark-connection new-connection-mark=WAN1_conn passthrough=no in-interface=WAN1

1 chain=input action=mark-connection new-connection-mark=WAN2_conn passthrough=no in-interface=WAN2

2 chain=output action=mark-routing new-routing-mark=to_WAN1 passthrough=no connection-mark=WAN1_conn

3 chain=output action=mark-routing new-routing-mark=to_WAN2 passthrough=no connection-mark=WAN2_conn

*I tried with Passthrough=yes and no but problem remains the same.
+++++++++++++++++++++++++++++++++++++++++++++++++++++++
0 chain=srcnat action=masquerade src-address-list=clients out-interface=WAN1

1 chain=srcnat action=masquerade src-address-list=clients out-interface=WAN2

+++++++++++++++++++++++++++++++++++++
Firstly the internet was not working mean no DNS resolution then i disabled the proxy and dsn_nat thus using only masq mode.

Please help me out.

Thanks.