Solved

Sonicwall kills Uverse DSL performance (even on other ports)

Posted on 2013-01-31
3
392 Views
Last Modified: 2013-03-15
I have a Uverse DSL model that connects to a Sonicwall and then a switch that connects the rest of the network.  When a machine is plugged directly into the DSL modem, the ping times are in the 40-70ms range & the bandwidth is 11ish.  Once my Sonicwall(and the rest of the network) is connected to the DSL modem, the ping times drop to 500-700ms-even on directly connected LAN ports on the DSL modem and the bandwidth drops to 1-3mb.  The modem & Sonicwall are both set to auto negotiate.

Any ideas?
0
Comment
Question by:Havasu2
  • 2
3 Comments
 
LVL 20

Accepted Solution

by:
agonza07 earned 500 total points
ID: 38842474
I think you are on the right track. Check the interfaces to see if there are any errors. Also try setting them up at 100Mb/Full Duplex.

Also, just make sure you only have one computer at the otherwise of the Sonicwall. Something could be eating your bandwidth so you want to rule that out.
0
 

Author Comment

by:Havasu2
ID: 38842493
I was thinking along those lines & have been sniffing the network with Wireshark, and nothing is doing anything.  Every machine in the place is on, but no traffic at all.  I'm back to thinking it has something to do with the sonicwall itself.
0
 

Author Comment

by:Havasu2
ID: 38991111
Turned out to be a little rootkit infestation that none of the junk virus scanners on the market picked up-but Combofix sure did.
0

Featured Post

Free learning courses: Active Directory Deep Dive

Get a firm grasp on your IT environment when you learn Active Directory best practices with Veeam! Watch all, or choose any amount, of this three-part webinar series to improve your skills. From the basics to virtualization and backup, we got you covered.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Is your computer hacked? learn how to detect and delete malware in your PC
Use of TCL script on Cisco devices:  - create file and merge it with running configuration to apply configuration changes
Here's a very brief overview of the methods PRTG Network Monitor (https://www.paessler.com/prtg) offers for monitoring bandwidth, to help you decide which methods you´d like to investigate in more detail.  The methods are covered in more detail in o…
This video gives you a great overview about bandwidth monitoring with SNMP and WMI with our network monitoring solution PRTG Network Monitor (https://www.paessler.com/prtg). If you're looking for how to monitor bandwidth using netflow or packet s…

749 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question