Cisco RV180W slowing down internet speed

The NAT throughput of this router is 800 Mbits/sec which should be enough to get better speed than you see.

Is the test connection to the RV180W wired or wireless?  I assume wireless. Try a wired connection and see what you get .

John
The router was wired when we tested it.  At modem 50+ download.  Through router 9M download.
Replaced router with a different one and speeds increased to where they should be.

I use an RV220W which performs very well, so may it was a defective router (firmware defect).

That may be the case. I have a case open with Cisco and I hope they can diagnose the problem remotely.
We are not sure if we will keep the new router there or not. It was urgent and late at night and we stuck in a Netgear FVS318N.   Not a lot of users in this office and they use the router for VoIP as well. I am not familiar with these routers and how solid they are for this type of application.  Do you know much about this type of router?

The Cisco RV220W gives me excellent throughput, and I find it to be a solid router.  I looked up the specs on the RV180W and it appeared to be the same.

Since you have a case open with Cisco, let's see what they say.

We contacted Cisco who was very helpful but their solution was not feasible as it would have required multiple outside of business hours to test.  It was less expensive to replace the router.  The router was not consistent any more.  But Cisco tech support was very helpful and fast to respond