SonicWall NSA2600 Dropping packets

We are using 2 brand new SonicWall NSA2600 routers and a VPN Connection.

We have a phone system at location 1 that location 2 uses.

The phones started dropping packets about a week ago.

when I do a simple ping to the sonicwall X0 ( LAN ) address: 192.168.1,  I drop about 1 in every 10 to 15 packets.

Both sonicwall's are running the latest firmware and this is only happening at location 1.

Is there some logs I can look at or a setting that I need to enable/disable?  I haven't used SonicWalls that much so any help would be appreciated.
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Are you sure the sonicwalls are causing the problem and not a device in between you and the NSA?

If you plug straight into X0 with a laptop and ping the inside address do you get the same dropouts?

There is a packet capture feature on the NSA you could look at too. I'm writing this from my phone and can't remember where it is off the top of my head.
revo1059Author Commented:
I am pretty sure it is the NAS2600.  If I ping another pc that is on the switch I do not loose any packets.  It's only when I go through the NAS2600 that I start to drop pings.

I haven't been on-site with the device yet, I am going there this morning.  I will plug directly in and see if the bad pings continue.

If I did do a packet capture, what would I look for?
Benjamin Van DitmarsSr Network EngineerCommented:
how did you configure youre interfaces and can you supply some logging. to see what happends.

are the drops inbound or outbound.

did you setup shapping on youre outside interface ?

speed duplex settings.

does youre swich show speed/duplex errors.

replace the network cable between the NSA and the switcht. besure it 1.2 meter or more
revo1059Author Commented:
Apparently this was a known issue with Dell and they supplied us a new firmware to solve the issue. Hopefully it works.

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revo1059Author Commented:
Dell supplied updated firmware
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