I'd start with disconnecting from your SonicWall, configuring and connecting a laptop direct, firewall up of course, and see if you still see the latency issues. Assuming you do, you've pretty much eliminated your network as an issue and need to point the finger at Comcast..
From: Evan Brastow [mailto:ebras...@automatedemblem.com] Sent: Thursday, November 11, 2010 5:48 PM To: NT System Admin Issues Subject: Loooooong ping times Hi peoples, I have a weird issue, and I've had it for about 3 weeks (don't worry, it's work related!) Our Internet connection has been really slow. Web sites time out half the time, and just load really slowly other times. Our connection is a Comcast connection, and I called then to see if they could test the speed. They did, and it seemed okay to them, but then said that we had an old cable modem. They replaced the modem, but it made no difference. When I use speedtest.net, or speedtest.comcast.net. I usually get good throughput times (36 Mbps up, 7 Mbps down) but I get a ping time that is almost ALWAYS 3146 ms. Sometimes it's 3147, sometimes it's 3145, but it's 3146 90% of the time. Weird, huh?! So, I went to my SonicWALL and unchecked the check box that was set to enable the DHCP server. I thought maybe having two DHCP servers (the SonicWALL and my own internal DHCP server) was an issue. I don't even know why the DHCP server was enabled on the firewall. So I disabled that, and I'm still having the same issue - very long ping times, though now it's somewhat intermittent. At times, I get a ping time of 72ms, and the others, it's right back to 3146, So my question is, where should I be looking to fix this? Essentially, I have two DNS servers, one DHCP server (not including the SonicWALL,) Then I have our firewall, and then the cable modem. That's it. Help? I have no clue how to troubleshoot this. Evan ~ Finally, powerful endpoint security that ISN'T a resource hog! ~ ~ <http://www.sunbeltsoftware.com/Business/VIPRE-Enterprise/> ~ --- To manage subscriptions click here: http://lyris.sunbelt-software.com/read/my_forums/ or send an email to listmana...@lyris.sunbeltsoftware.com with the body: unsubscribe ntsysadmin ~ Finally, powerful endpoint security that ISN'T a resource hog! ~ ~ <http://www.sunbeltsoftware.com/Business/VIPRE-Enterprise/> ~ --- To manage subscriptions click here: http://lyris.sunbelt-software.com/read/my_forums/ or send an email to listmana...@lyris.sunbeltsoftware.com with the body: unsubscribe ntsysadmin
