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Slow network transfers - 5.Mar.2004 11:25:00 PM

pr0nd3xtr

Posts: 20
Joined: 6.Feb.2004
From: Thousand Oaks, CA
Status: offline

ISA 2004 Beta2 running on Win 2003. I am seeing very slow data transfers between the networks, connected via 100Mb/s cards and hub. When I check the ISA dashboard monitor, it shows at about 20 out of 100 on the Bytes/Sec chart. AFAIK I dont have any restrictions or limits set.

This is transferring via FTP and Netbios. My FTP client shows a transfer rate of 150Kb/s.

Thanks for any thoughts on this.

Matt

Post #: 1

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RE: Slow network transfers - 7.Mar.2004 5:17:00 PM

tshinder

Posts: 47659
Joined: 10.Jan.2001
From: Texas
Status: offline

Hi Matt,

There may be some layer 2 issues here, 'cause I find ISA 2004 faster than ISA 2000 and I can get full bandwdith between networks.

HTH,
Tom

(in reply to pr0nd3xtr)

Post #: 2

RE: Slow network transfers - 11.Mar.2004 6:28:00 AM

pr0nd3xtr

Posts: 20
Joined: 6.Feb.2004
From: Thousand Oaks, CA
Status: offline

I changed the hub out for a Cajun switch, running full duplex on the switch and nic's, still having the same problem. I can transfer full speed through the switch on the local network, but anything going through the ISA server still runs at around 100Kb/s.

Can the hardware be a problem? ISA is running on a Dell Poweredge 1300 P2 500mhz 256mb ram, win2k3.

(in reply to pr0nd3xtr)

Post #: 3

RE: Slow network transfers - 11.Mar.2004 11:16:00 AM

tshinder

Posts: 47659
Joined: 10.Jan.2001
From: Texas
Status: offline

Hi Matt,

Could be a problem with the NICs on the ISA box? I definitely see no slowdown on my ISA machines.

HTH,
Tom

(in reply to pr0nd3xtr)

Post #: 4

RE: Slow network transfers - 11.Mar.2004 1:24:00 PM

harrythehamster

Posts: 16
Joined: 8.Sep.2003
From: England
Status: offline

Hi Matt

I think Tom is right.

I had a similar problem with my win2k3 box

Imo i think it is the problem with SMB signing on the 2003 server - this ms tech article might help

Basically you go into the server GPO and disable SMB signing;

Digitally sign client communication (default = always)
Digitally sign client communication (default = when possible)
Digitally sign server communication (default = always)
Digitally sign server communication (default = when possible)

http://support.microsoft.com/default.aspx?scid=kb;en-us;Q810907

I hope this is the answer you are looking for

Good luck

Richard

[ March 11, 2004, 03:29 PM: Message edited by: harrythehamster ]

(in reply to pr0nd3xtr)

Post #: 5