Losing Packets

Experts,

I work with an Inteliradiology Clinic where they have multiple sites (every state + Puerto Rico)  sending into their site for Doctor's to read exams. They all are coming in using port 104 (Dicom), I tried splitting them up having some to come in on a different port i.e. 105, 106, 107. The problem is they are all complaining the packets are being drop and doctor's are not getting all the images. My questions is what else can I try in troubleshooting this issue.

This is what I've done so far:
- Called Cisco support to monitor the VPN (they can't find any signs of drop packets)
- Had each site run wireshark, still no signs of dropped packets according to IT on other side
- Assigning more ports for Dicom traffic

Is there anything else I can do to fix this problem?

Thanks!
CervisTECHAsked:
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CervisTECHConnect With a Mentor Author Commented:
This was an issue with the router. Cisco replaced device.

Thanks!
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Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
I assume we are using the VMXNET3 interface in VMs.
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CervisTECHAuthor Commented:
No sir, actually this is not VM related. It is a Windows 2008 R2 server.
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Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
Physical Server ?
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CervisTECHAuthor Commented:
Yes sir.
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CervisTECHAuthor Commented:
This was an issue with the router. Cisco replaced device.
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