remote office problems

[andyfram]

Hi
Here is the scenario:

We have a T1 for data in our main office. We also have an Eclipse (ERP) server and a Sonicwall firewall appliance.

One remote office that just opened last month also has a T1 for data (same provider as the main office) and also has a sonicwall firewall appliance. There are only 4 PCs and a printer. The offices communicate with eachother via hardware VPN.

The remote office experiences intermittent slowness when working in Eclipse that lasts for 45-60 minutes at a time. The windows XP Pro PCs there are all clean - no viruses, no spyway, no rogue programs or P2P stuff and are fully patched. All machines there run slow but only in Eclipse. They can browse the web and send/receive email with no delays.

Our Eclipse consultant says the server is OK. I agree becuase the other 3 remote offices have no problems. There is no slowness in the main office.

Our firewall consultant says it's not a firewall issue because it would be all or nothing - the problem wouldn't be intermittent.

The ISP says there are no errors on the cicruit, no dropped packets, and bandwidth usage never exceeds 50% on either T.

I use pingplotter to trace the remote WAN IP and I see it jumps from 4ms to over 700ms and then drops again, then goes up to 300ms and then drops, then goes to 700 again.

Any ideas?

 

[technome]

The ISP says there are no errors on the circuit, no dropped packets, and bandwidth usage never exceeds 50% on either T."

ISPs are like used car dealers, prostitutes at heart, they will tell you anything.
Use the pathping command between the sites....taking a guess packets are being retransmitted, after they are lost, ... pathping from both ends. Fragmented packet handling enabled on the Sonicwall?

Just used the ping plotter through VPN to client, under 14ms
To other sites under 100.

........................................
Chernobyl disaster..a must see pictorial

http://www.kiddofspeed.com/default.htm