Comcast slow speeds!!

beerman · Post by **beerman** » Fri Oct 06, 2006 9:43 am

Hi, I am new here, i just recently have been having slow cable speeds.. I am an on-line gamer, that depends on fast internet speeds. This past week, I have noticed between 6 and 11 pm est, my pings are doubled!! Whats weird is, i have a lynxs wireless router, with a wireless lap-top downstairs.. My wireless laptop runs faster than my WIRED gaming desktop?????????? I called support, they said everything looks fine on their end? Could my nic card be bad in my desktop?? I tried changing the duplex, but its all the same??? Any help would be great... thanks

tradewiz50 · Post by **tradewiz50** » Tue Oct 10, 2006 2:31 pm

beerman wrote:Hi, I am new here, i just recently have been having slow cable speeds.. I am an on-line gamer, that depends on fast internet speeds. This past week, I have noticed between 6 and 11 pm est, my pings are doubled!! Whats weird is, i have a lynxs wireless router, with a wireless lap-top downstairs.. My wireless laptop runs faster than my WIRED gaming desktop?????????? I called support, they said everything looks fine on their end? Could my nic card be bad in my desktop?? I tried changing the duplex, but its all the same??? Any help would be great... thanks

Its called network congestion.

trogers · Post by **trogers** » Tue Oct 10, 2006 2:43 pm

tradewiz50 wrote: Its called network congestion.

A good answer that leaves many scratching their head. Should not this congestion slows a wireless connection similarly to the wired?

Not necessary. How much it will slow each comp, wired or wireless, depends on the RWIN value for a certain bandwidth. Or to put it another way, how much variable latency has been allowed in choosing the RWIN value.

Example: Bandwidth 3000kbps. Average latency 100ms

Comp 1 - RWIN = 3000 x 100 x 1.2 / 8 = 45000
Comp 2 - RWIN = 3000 x 100 x 1.5 / 8 = 56250

Comp 1 has a RWIN value that allows latency up to 120ms
Comp 2 has a RWIN value that allows latency up to 150ms

So if the network congestion causes latency to become 130-150ms from the usual 100-110ms, Comp 1 will run slower than Comp 2.

Sava700 · Post by **Sava700** » Tue Oct 10, 2006 10:29 pm

beerman wrote:Hi, I am new here, i just recently have been having slow cable speeds.. I am an on-line gamer, that depends on fast internet speeds. This past week, I have noticed between 6 and 11 pm est, my pings are doubled!! Whats weird is, i have a lynxs wireless router, with a wireless lap-top downstairs.. My wireless laptop runs faster than my WIRED gaming desktop?????????? I called support, they said everything looks fine on their end? Could my nic card be bad in my desktop?? I tried changing the duplex, but its all the same??? Any help would be great... thanks

open up your command prompt and do a tracert to some site.. like http://www.yahoo.com

you might see certain hops having high pings and this has been known already on many other places.. check out the forums on dslreports..com they are talking about it daily I had the issue for a while being on Adelphia and with TW taking em over it was a pain in the butt for transfer.

gameplaya · Post by **gameplaya** » Wed Oct 11, 2006 11:17 am

Ive bene having the same problem as well my connection speed is pretty dar nfats but sometimes it loses connection such as when im playin xbox live, it suddenly gets laggy and goes to a blue screen, is there any way i can keep my connection steady like it should be?

Sava700 · Post by **Sava700** » Wed Oct 11, 2006 4:31 pm

gameplaya wrote:Ive bene having the same problem as well my connection speed is pretty dar nfats but sometimes it loses connection such as when im playin xbox live, it suddenly gets laggy and goes to a blue screen, is there any way i can keep my connection steady like it should be?

I thought we already helped you on your issues since you never responded back to your threads..?

tradewiz50 · Post by **tradewiz50** » Wed Oct 11, 2006 4:33 pm

Let's start by you posting a traceroute to any webserver.

trogers wrote:A good answer that leaves many scratching their head. Should not this congestion slows a wireless connection similarly to the wired?

Not necessary. How much it will slow each comp, wired or wireless, depends on the RWIN value for a certain bandwidth. Or to put it another way, how much variable latency has been allowed in choosing the RWIN value.

Example: Bandwidth 3000kbps. Average latency 100ms

Comp 1 - RWIN = 3000 x 100 x 1.2 / 8 = 45000
Comp 2 - RWIN = 3000 x 100 x 1.5 / 8 = 56250

Comp 1 has a RWIN value that allows latency up to 120ms
Comp 2 has a RWIN value that allows latency up to 150ms

So if the network congestion causes latency to become 130-150ms from the usual 100-110ms, Comp 1 will run slower than Comp 2.

gameplaya · Post by **gameplaya** » Fri Oct 13, 2006 10:43 am

U mean this one when noone got bac to me on? http://forums.speedguide.net/showthread.php?t=207867 and this one
http://forums.speedguide.net/showthread.php?t=205533

gameplaya · Post by **gameplaya** » Fri Oct 13, 2006 10:44 am

hasn't gotten bac yet

Sava700 · Post by **Sava700** » Mon Oct 16, 2006 6:17 am

gameplaya wrote:hasn't gotten bac yet

responded...

twilso17 · Post by **twilso17** » Wed Feb 27, 2008 10:05 pm

I am getting the same thing, the phone support people say no problems but when they send a tech out they find problems on Monday the tech told me the problem was at their end but it has been three weeks and still I am waiting for a fix. Guy # 3 is coming out Friday...........

PS: I work in the field and have been for 28 years, I told them three weeks ago it was at their end but no............................................. I am getting speeds as slow as less then 1 meg down with upload above 1 meg at the same time with a QoS at less the 25%................................

twilso17 · Post by **twilso17** » Wed Feb 27, 2008 10:07 pm

FYI: When I run a ping test to their primary DNS server I get over 70% packet loss and they tell me they see no problems

helter · Post by **helter** » Wed Feb 27, 2008 10:15 pm

beerman wrote:Hi, I am new here, i just recently have been having slow cable speeds.. I am an on-line gamer, that depends on fast internet speeds. This past week, I have noticed between 6 and 11 pm est, my pings are doubled!! Whats weird is, i have a lynxs wireless router, with a wireless lap-top downstairs.. My wireless laptop runs faster than my WIRED gaming desktop?????????? I called support, they said everything looks fine on their end? Could my nic card be bad in my desktop?? I tried changing the duplex, but its all the same??? Any help would be great... thanks

Exactly what do yo mean by your wireless laptop is faster than your desktop?

And what pings are we talking here, if you say 50 and 100, I'm going to verbally slap you.

twilso17 · Post by **twilso17** » Wed Feb 27, 2008 10:23 pm

Tracing route to http://www.comcast.net [204.127.205.8]
over a maximum of 30 hops:

1 <1 ms <1 ms <1 ms 192.168.1.1
2 16 ms 18 ms 11 ms 73.41.128.1
3 21 ms 12 ms 22 ms ge-2-3-ur01.jackson.mi.michigan.comcast.net [68.
86.140.161]
4 12 ms 8 ms 10 ms te-9-3-ur02.jackson.mi.michigan.comcast.net [68.
86.140.65]
5 27 ms 23 ms 14 ms 12.118.239.38
6 26 ms 21 ms 34 ms 12.118.239.37
7 39 ms 52 ms 36 ms tbr2.cgcil.ip.att.net [12.123.6.13]
8 35 ms 48 ms 43 ms cr1.cgcil.ip.att.net [12.122.17.217]
9 35 ms 35 ms 34 ms cr1.cl2oh.ip.att.net [12.122.2.206]
10 41 ms 32 ms 37 ms cr2.cl2oh.ip.att.net [12.122.2.126]
11 37 ms 37 ms 34 ms cr2.phlpa.ip.att.net [12.122.2.210]
12 42 ms 35 ms 35 ms tbr2.phlpa.ip.att.net [12.122.20.78]
13 37 ms 45 ms 35 ms gar2.phlpa.ip.att.net [12.123.137.205]
14 39 ms 42 ms 49 ms mdf1-gsr12-1-pos-7-0.nyc3.attens.net [12.122.255
.166]
15 45 ms 39 ms 48 ms sccsbix12-1-6.attbi.com [63.240.64.50]
16 * * * Request timed out.
17 * * * Request timed out.
18 * * * Request timed out.
19 44 ms 38 ms 38 ms http://www.comcast.net [204.127.205.8]

Trace complete.

Sava700 · Post by **Sava700** » Thu Feb 28, 2008 7:46 am

helter wrote:Exactly what do yo mean by your wireless laptop is faster than your desktop?

And what pings are we talking here, if you say 50 and 100, I'm going to verbally slap you.

His post was almost 2 years old... did you even look at the dates?

10-06-06 09:43 AM

Sava700 · Post by **Sava700** » Thu Feb 28, 2008 7:48 am

twilso17 wrote:I am getting the same thing, the phone support people say no problems but when they send a tech out they find problems on Monday the tech told me the problem was at their end but it has been three weeks and still I am waiting for a fix. Guy # 3 is coming out Friday...........

PS: I work in the field and have been for 28 years, I told them three weeks ago it was at their end but no............................................. I am getting speeds as slow as less then 1 meg down with upload above 1 meg at the same time with a QoS at less the 25%................................

If the Guy#3 doesn't get the issue solved I suggest calling their executive Complaint center...when I did on a issue it got major local attention within 24hours from management and got the ball rolling to get the issue resolved.

They are listed as:
Comcast Cellular Communications
1500 Market St
Philadelphia, PA 19102-2100
(215) 665-1700

They handle all Comcast complaints nationwide.

SG Broadband Community

Comcast slow speeds!!

Comcast slow speeds!!

Tracing route to www.comcast.net [204.127.205.8]