Dual WAN setup

We need to replace a TP-Link TL-R480T+ router with a Cisco RV320. We had our dual WAN setup working fine on the TP Link.

We put  in the exact same IP routes to the WAN connections on the RV320, but the end result is that the internet is very slow. There is also an internet application that needs to be accessed from WAN2, and that one is also very slow.

What could be the reason for this?
IT MeetjeslandAsked:
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IT MeetjeslandConnect With a Mentor Author Commented:
It appears you need to disable service detection on the WAN interfaces. Now everything works fine.

Although I thought it was...

After 2 days the Exchange 2007 server decided to delay the email. I'm getting error 451 4.4.0 primary target ip address responded with 421 4.2.1 unable to connect.
I would first check if there are errors on the interfaces and statically configure link speed and duplex instead of auto.
IT MeetjeslandAuthor Commented:
Everything works now. Disabled service detection and the Exchange issue was just a DNS server missing at one of the WAN connections.
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