Cable Modem speed issue

[Bics62]

I have just switched from DSL to cable connection for service. I had DSL at 3Mbps and went to Road Runner's 7Mbps. I am browsing and downloading slower with this connection than before. I called Tech support and they were no help to me. They sent a tech and he never even checked anything but did a speed test on my computer. I download files at 15Kbps and cannot run online games. I've reset the modem and checked all connections. Sometimes my speed test shows 600Kbps but then a minute later will show 90Kbps. I need some assistance please.

[trogers]

Cable modem is different from DSL. You need to call your ISP and register the MAC address of your cable modem so that they can provision it. In DSL, the service is restricted to the registered phone number. In Cable, the service is restricted to a single registered MAC address of the cable modem.

[Bics62]

I am using the modem Road Runner brought over.

[trogers]

I am using the modem Road Runner brought over.

Call your ISP and read to them the MAC number that is printed at the rear or bottom of your cable modem.

[Bics62]

I called them yesterday to confirm the MAC address and they have said it was correct.

[trogers]

I called them yesterday to confirm the MAC address and they have said it was correct.

Post your TCP Analyzer report.

[Bics62]

« SpeedGuide.net TCP Analyzer Results »
Tested on: 05.18.2008 11:47
IP address: 24.93.xxx.xx

TCP options string: 020405b401010402
MSS: 1460
MTU: 1500
TCP Window: 65535 (NOT multiple of MSS)
RWIN Scaling: 0
Unscaled RWIN : 65535
Reccomended RWINs: 64240, 128480, 256960, 513920
BDP limit (200ms): 2621kbps (328KBytes/s)
BDP limit (500ms): 1049kbps (131KBytes/s)
MTU Discovery: ON
TTL: 113
Timestamps: OFF
SACKs: ON
IP ToS: 00000000 (0)

[trogers]

Try the following with TCP Optimizer:

General Settings tab:
Custom settings - check
Modify All Network Adapters - check
network adapter selection - your NIC
MTU - 1500
TTL - 64
TCP Receive Window - 256960
MTU Discovery - Yes
Black Hole Detect - No
Selective Acks - Yes
Max Duplicate ACKs - 2
TCP 1323 Options:
Windows Scaling - checked
Timestamps - uncheck

Advanced Settings tab:
Max Connections per Server - 10
Max Connections per 1.0 Server - 20
LocalPriority - 1
Host Priority - 1
DNSPriority - 1
NetbtPriority - 1
Lan Browsing speedup - optimized
QoS: NonBestEffortLimit - 0
ToS: DisableUserTOSSetting - 0
ToS: DefaultTOSValue - 80
MaxNegativeCacheTtl - 0
NetFailureCacheTime - 0
NegativeSOACache Time - 0
LAN Request Buffer Size - 32768
Then select "Apply Changes" and reboot to take effect

[Bics62]

After I reboot should I post another analyzer report?

[trogers]

After I reboot should I post another analyzer report?

Post another TCP Analyzer report and also do some speed tests.

[Bics62]

Here it is after I rebooted:

« SpeedGuide.net TCP Analyzer Results »
Tested on: 05.18.2008 12:04
IP address: 24.93.xxx.xx

TCP options string: 020405b40103030201010402
MSS: 1460
MTU: 1500
TCP Window: 256960 (multiple of MSS)
RWIN Scaling: 2
Unscaled RWIN : 64240
Reccomended RWINs: 64240, 128480, 256960, 513920
BDP limit (200ms): 10278kbps (1285KBytes/s)
BDP limit (500ms): 4111kbps (514KBytes/s)
MTU Discovery: ON
TTL: 49
Timestamps: OFF
SACKs: ON
IP ToS: 00000000 (0)

[Bics62]

And here is a speed test afterwards:

http://www.speedtest.net/result/272940391.png (http://www.speedtest.net)

[Bics62]

Tracing route to yahoo.com [66.94.234.13]
over a maximum of 30 hops:

1 24 ms 19 ms 21 ms cpe-24-93-160-1.neo.res.rr.com [24.93.160.1]
2 24 ms 28 ms 22 ms gig1-5.ncntoh1-swt402.neo.rr.com [24.164.106.153
]
3 28 ms 24 ms 23 ms gig13-0-0.ncntoh1-rtr2.neo.rr.com [24.164.104.93
]
4 28 ms * * network-065-025-137-237.columbus.rr.com [65.25.1
37.237]
5 42 ms 45 ms 34 ms ae-4-0.cr0.chi30.tbone.rr.com [66.109.6.68]
6 42 ms 37 ms 40 ms ae-0-0.cr0.chi10.tbone.rr.com [66.109.6.20]
7 96 ms 86 ms 87 ms ae-3-0.cr0.sjc10.tbone.rr.com [66.109.6.14]
8 92 ms 90 ms 93 ms ae-1-0.pr0.sjc20.tbone.rr.com [66.109.6.143]
9 100 ms 99 ms 175 ms 66.109.9.173
10 94 ms 106 ms 87 ms ge-3-0-0-p240.msr1.scd.yahoo.com [216.115.106.17
7]
11 91 ms 100 ms 97 ms ten-2-3-bas2.scd.yahoo.com [66.218.82.223]
12 97 ms 91 ms 87 ms w2.rc.vip.scd.yahoo.com [66.94.234.13]

Trace complete.

[trogers]

Tracing route to yahoo.com [66.94.234.13]
over a maximum of 30 hops:

1 24 ms 19 ms 21 ms cpe-24-93-xxx-xxx.neo.res.rr.com [24.93.xxx.xxx]
2 24 ms 28 ms 22 ms gig1-5.ncntoh1-swt402.neo.rr.com [24.164.106.153]
3 28 ms 24 ms 23 ms gig13-0-0.ncntoh1-rtr2.neo.rr.com [24.164.104.93]
4 28 ms * * network-065-025-137-237.columbus.rr.com [65.25.137.237]


Packet losses at hop 4. May be due to your end as ping times at the modem in hop 1 are irregular.

I would first scan for possible malware in the comp.

Clean comp with CCleaner and then deep scan with:

SpyBot
Ad-Aware 2007
Super-antispyware

[Bics62]

OK, I will use those then post results again on here.

[Bics62]

This is after I did all the cleaning and deep scans:

« SpeedGuide.net TCP Analyzer Results »
Tested on: 05.18.2008 16:01
IP address: 24.93.xxx.xx

TCP options string: 020405b40103030201010402
MSS: 1460
MTU: 1500
TCP Window: 256960 (multiple of MSS)
RWIN Scaling: 2
Unscaled RWIN : 64240
Reccomended RWINs: 64240, 128480, 256960, 513920
BDP limit (200ms): 10278kbps (1285KBytes/s)
BDP limit (500ms): 4111kbps (514KBytes/s)
MTU Discovery: ON
TTL: 49
Timestamps: OFF
SACKs: ON
IP ToS: 00000000 (0)






Tracing route to yahoo.com [66.94.234.13]
over a maximum of 30 hops:

1 14 ms 8 ms 15 ms cpe-24-93-160-1.neo.res.rr.com [24.93.160.1]
2 16 ms 33 ms 27 ms gig1-5.ncntoh1-swt402.neo.rr.com [24.164.106.153
]
3 19 ms 18 ms 26 ms gig13-0-0.ncntoh1-rtr2.neo.rr.com [24.164.104.93
]
4 35 ms 43 ms 33 ms network-065-025-137-237.columbus.rr.com [65.25.1
37.237]
5 39 ms 38 ms 34 ms ae-4-0.cr0.chi30.tbone.rr.com [66.109.6.68]
6 * 32 ms 38 ms ae-0-0.cr0.chi10.tbone.rr.com [66.109.6.20]
7 92 ms 90 ms 94 ms ae-3-0.cr0.sjc10.tbone.rr.com [66.109.6.14]
8 86 ms 86 ms 87 ms ae-1-0.pr0.sjc20.tbone.rr.com [66.109.6.143]
9 90 ms 97 ms 108 ms 66.109.9.179
10 94 ms 96 ms 108 ms ge-3-0-0-p240.msr1.scd.yahoo.com [216.115.106.17
7]
11 101 ms 94 ms 100 ms ten-2-3-bas1.scd.yahoo.com [66.218.82.221]
12 86 ms 93 ms 90 ms w2.rc.vip.scd.yahoo.com [66.94.234.13]

Trace complete.







http://www.speedtest.net/result/273019847.png (http://www.speedtest.net)

[trogers]

Tracing route to yahoo.com [66.94.234.13]
over a maximum of 30 hops:

1 14 ms 8 ms 15 ms cpe-24-93-xxx-xxx.neo.res.rr.com [24.93.xxx.xxx]
2 16 ms 33 ms 27 ms gig1-5.ncntoh1-swt402.neo.rr.com [24.164.106.153]
3 19 ms 18 ms 26 ms gig13-0-0.ncntoh1-rtr2.neo.rr.com [24.164.104.93]


Ping times at hop 1 have lowered but still uneven.

Turn off power to your modem for 10 mins. Place it in a location a few feet away from ALL other electrical devices. Do not coil up any signal or power cables.