Pingtest.net very high jitter?

[nevillek]

Hello,

I just shifted from MTNL ISP to Hathway ISP 1MBPS Unlimited because it was getting disconnected too often. However, the MTNL pingtest (FOR THE SAME SITE ALTHOUGH IT SAYS IT'S 1700mi AWAY BUT DETECTED BY PINGTEST.NET AS THE "BEST SERVER) used to give me a JITTER of 1ms and GRADE B but Hathway is giving horrible JITTER and GRADE D. It does not disconnect though. Is this the case for everyone?

I also tested the download speed using Speedtest and it seems normal, and tried downloading .NET framework from Microsoft's website, and the transfer rate is just fine, but majority of other sites are giving terrible transfer rates for downloads (~30 to 50 kbps instead of 120 kbps). This wasn't happening with MTNL. I spoke to Hathway support and they say there is no problem on their end since the download speed is just fine and that's the only thing they're committed to provide.

My IP address ping is 1ms but my default gateway ping is high. I don't know what's causing majority of the sites to open/download slowly since SPEEDTEST shows 1MBPS download speed.

Any help is appreciated.

Here are the results of the Pingtest.net and Speedtest.net sites and my default gateway pings (when downloading) respectively :

http://www.pingtest.net/result/35368056.png

http://www.speedtest.net/result/1171827882.png My plan is 1MBPS so this is right so why d/ls are slow?

http://i53.tinypic.com/2s6a8n4.jpg

[trogers]

I'm getting a terrible pingtest.net result. Can anyone help please?

http://www.pingtest.net/result/35368056.png (http://www.pingtest.net)

Why do you test signals to a site 1700 miles away? Try a site closest to you.

[nevillek]

Why do you test signals to a site 1700 miles away? Try a site closest to you.

Pingtest.net automatically detects this as the BEST SERVER. Moreover, my earlier ISP would detect the same site with a jitter of 1ms or 2ms. Here's the screenshot of the earlier ISP's pingtest result:

http://www.pingtest.net/result/35371601.png (http://www.pingtest.net)

[trogers]

Then this tester lacks sufficient test sites to be of use because jitters in a long signal route can easily be caused by some intermediate points near the end.

A tracert checks signal quality at your end, esp the first 3 hops.

[nevillek]

Then this tester lacks sufficient test sites to be of use because jitters in a long signal route can easily be caused by some intermediate points near the end.

A tracert checks signal quality at your end, esp the first 3 hops.

Ok, let's ignore this pingtest. Even then, I get transfer rates of 30kbps on a 1 Mbps plan. How do I diagnose this?

[trogers]

Ok, let's ignore this pingtest. Even then, I get transfer rates of 30kbps on a 1 Mbps plan. How do I diagnose this?

Post your Analyzer report. Tell us the speed you paid to get and your location.

Do a tracert to www.yahoo.com and post.

[nevillek]

Post your Analyzer report. Tell us the speed you paid to get and your location.

Do a tracert to www.yahoo.com and post.

Not sure what is an "Analyser report", can you help?

I paid to get 1 Mbps speed and my location is Mumbai, India.

Here is the tracert to yahoo.com :


Tracing route to yahoo.com [98.137.149.56]
over a maximum of 30 hops:

1 22 ms 10 ms 12 ms 10.40.0.1
2 21 ms 9 ms 9 ms 125.99.127.237
3 7 ms 12 ms 10 ms 203.212.193.34
4 34 ms 6 ms 12 ms 203.212.193.249
5 33 ms 11 ms 15 ms 121.241.1.190.mumbai-static.vsnl.net.in [121.241
.1.190]
6 18 ms 8 ms 12 ms 59.163.16.1.static.vsnl.net.in [59.163.16.1]
7 52 ms 44 ms 48 ms 59.163.16.58.static.vsnl.net.in [59.163.16.58]
8 52 ms 48 ms 45 ms 59.163.16.58.static.vsnl.net.in [59.163.16.58]
9 42 ms 42 ms 39 ms if-1-0-0-101.core1.CFO-Chennai.as6453.net [116.0
.79.9]
10 267 ms 271 ms 243 ms if-8-3-0-0.tcore1.CXR-Chennai.as6453.net [180.87
.36.26]
11 99 ms 260 ms 185 ms if-12-0-0.core1.SVQ-Singapore.as6453.net [180.87
.36.21]
12 244 ms 279 ms 243 ms if-6-0-0-1908.mcore4.PDI-PaloAlto.as6453.net [21
6.6.86.37]
13 252 ms 255 ms 251 ms ix-11-0-4.mcore4.PDI-PaloAlto.as6453.net [207.45
.213.130]
14 272 ms 290 ms 261 ms ae-0-d141.msr1.sp1.yahoo.com [216.115.107.51]
15 245 ms 248 ms 252 ms et-17-26.fab4-1-gdc.sp2.yahoo.com [98.136.16.31]

16 266 ms 248 ms 241 ms te-9-3.bas1-1-prd.sp2.yahoo.com [67.195.130.102]

17 260 ms 244 ms 251 ms ir1.fp.vip.sp2.yahoo.com [98.137.149.56]

Trace complete.

[trogers]

Not sure what is an "Analyser report", can you help?

I paid to get 1 Mbps speed and my location is Mumbai, India.

Here is the tracert to yahoo.com :


Tracing route to yahoo.com [98.137.149.56]
over a maximum of 30 hops:

1 22 ms 10 ms 12 ms 10.40.0.1



Click on the shortcut to the TCP Analyzer located on the left of our main web page.

Ping times at hop 1 of your tracert show 2 things:

- your modem is suffering interference from some nearby electrical device(s)
- you are not using a router.

[nevillek]

Hi again,

1) What could possibly be interfering with my cable modem? I noticed that at night, my transfer rate is 120 kbps and during the daytime, it falls down to 30 kbps for the same site. So are you sure the problem is this or their server/back end issue?

2) Can you explain what's wrong with the first hop? I know I don't use a router. Can you explain why I should be using a router? I have a cable modem with the fat cable wire coming from outside my house.

3) Here is the analyser report:

« SpeedGuide.net TCP Analyzer Results »
Tested on: 03.01.2011 02:54
IP address: 116.73.xxx.xxx
Client OS: Windows XP

TCP options string: 0204059c01010402
MSS: 1436
MTU: 1476
TCP Window: 65535 (NOT multiple of MSS)
RWIN Scaling: 0 bits
Unscaled RWIN : 65535
Recommended RWINs: 63184, 126368, 252736, 505472, 1010944
BDP limit (200ms): 2621kbps (328KBytes/s)
BDP limit (500ms): 1049kbps (131KBytes/s)
MTU Discovery: ON
TTL: 106
Timestamps: OFF
SACKs: ON
IP ToS: 00000000 (0)


Thanks again!

[trogers]

Hi again,

1) What could possibly be interfering with my cable modem? I noticed that at night, my transfer rate is 120 kbps and during the daytime, it falls down to 30 kbps for the same site. So are you sure the problem is this or their server/back end issue?

2) Can you explain what's wrong with the first hop? I know I don't use a router. Can you explain why I should be using a router? I have a cable modem with the fat cable wire coming from outside my house.

3) Here is the analyser report:

« SpeedGuide.net TCP Analyzer Results »
Tested on: 03.01.2011 02:54
IP address: 116.73.xxx.xxx
Client OS: Windows XP

TCP options string: 0204059c01010402
MSS: 1436
MTU: 1476
TCP Window: 65535 (NOT multiple of MSS)
RWIN Scaling: 0 bits
Unscaled RWIN : 65535
Recommended RWINs: 63184, 126368, 252736, 505472, 1010944
BDP limit (200ms): 2621kbps (328KBytes/s)
BDP limit (500ms): 1049kbps (131KBytes/s)
MTU Discovery: ON
TTL: 106
Timestamps: OFF
SACKs: ON
IP ToS: 00000000 (0)


Thanks again!

Interference on a cable modem is similar to you talking over a phone with static noise. Some data are lost in the transmission and have to be resend, thus speed falls.

Your lower download speed at peak time of the night is due both to static noise on the modem and untweaked TCP settings facing higher latency (due to traffic congestion).

If the modem faces no interference, its ping times at hop 1 will probably be

8ms 8ms 8ms, or
9ms 9ms 9ms

The natural firewall a NAT router provides is explained in this link: http://www.grc.com/nat/nat.htm


Download and 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
Checksum Offloading : enabled 0
Windows Scaling - uncheck
TCP Receive Window - 64240
MTU Discovery - Yes
Black Hole Detect - No
Selective Acks - Yes
Max Duplicate ACKs - 2
TCP 1323 Options:
Timestamps - uncheck

Advanced Settings :

--- Internet Explorer Optimization---
Max Connections per Server : 10
Max Connections per 1.0 Server : 10

--- Host Resolution Priority ---
LocalPriority : 5
Host Priority : 6
DNSPriority : 7
NetbtPriority : 8

--- LAN Tweaks ---
Lan Browsing speedup : optimized
LAN Request Buffer Size : 32768

--- Dynamic Port Allocation ---
MaxUserPor : 65535
TcpTimedWaitDelay : 30

--- Type/Quality of Service ---
QoS: NonBestEffortLimit : 0
ToS: DisableUserTOSSetting : 0
ToS: DefaultTOSValue : 0

--- DNS Error Caching ---
NegativeCacheTime : 0
NetFailureCacheTime : 0
NegativeSOACache Time : 0

--- Gaming Tweak - Disable Nagle's algorithm ---
TcpAckFrequency : Enabled 1
TCPNoDelay : Enabled 1
TcpDelackticks : default n/a

Then "Apply Changes" & Reboot
After that, post your new TCP Analyzer !

[nevillek]

Ahh ok, so there are two problems : 1) static noise on modem at my end 2) untweaked TCP settings facing high latency at the ISP's end.

Are you recommending me to buy a router? If I'm not wrong, that won't solve the problem wholly because of the second problem. How do I work on that? The ISP people have told me that they're working on my problem, but it's been over a week now and it's the same!

Ok, here is the new TCP Analyser report:

« SpeedGuide.net TCP Analyzer Results »
Tested on: 03.01.2011 11:05
IP address: 116.73.xxx.xxx
Client OS: Windows XP

TCP options string: 0204059c01010402
MSS: 1436
MTU: 1476
TCP Window: 64240 (NOT multiple of MSS)
RWIN Scaling: 0 bits
Unscaled RWIN : 64240
Recommended RWINs: 63184, 126368, 252736, 505472, 1010944
BDP limit (200ms): 2570kbps (321KBytes/s)
BDP limit (500ms): 1028kbps (128KBytes/s)
MTU Discovery: ON
TTL: 42
Timestamps: OFF
SACKs: ON
IP ToS: 00000000 (0)


By the way, I just did a tracert to yahoo.com again, out of curiosity and you must see the first hop now! :o

Tracing route to yahoo.com [69.147.125.65]
over a maximum of 30 hops:

1 70 ms 81 ms 95 ms 10.40.0.1
2 138 ms 11 ms 67 ms 125.99.127.237
3 19 ms 319 ms 98 ms 203.212.193.34
4 94 ms 12 ms 49 ms 203.212.193.249
5 33 ms 106 ms 105 ms 59.162.20.241.static-mumbai.vsnl.net.in [59.162.
20.241]
6 146 ms 100 ms 41 ms 59.163.16.1.static.vsnl.net.in [59.163.16.1]
7 38 ms 41 ms 73 ms 59.163.55.149.static.vsnl.net.in [59.163.55.149]

8 63 ms 46 ms 16 ms 59.163.55.149.static.vsnl.net.in [59.163.55.149]

9 16 ms 23 ms 12 ms if-14-0-0-101.core2.MLV-Mumbai.as6453.net [216.6
.13.37]
10 34 ms 99 ms 99 ms if-12-0-0.core1.MLV-Mumbai.as6453.net [209.58.10
5.81]
11 238 ms 291 ms 226 ms if-1-1-0-0.tcore1.MLV-Mumbai.as6453.net [180.87.
38.25]
12 238 ms 228 ms 266 ms if-3-2.tcore1.PYE-Paris.as6453.net [80.231.154.7
0]
13 233 ms 268 ms 348 ms if-2-2.tcore1.PVU-Paris.as6453.net [80.231.154.1
7]
14 229 ms 429 ms 318 ms if-5-871.tcore1.AEQ-Ashburn.as6453.net [216.6.51
.57]
15 227 ms 279 ms 279 ms if-2-2.tcore2.AEQ-Ashburn.as6453.net [216.6.87.1
]
16 226 ms 255 ms 228 ms 64.86.85.38
17 380 ms 283 ms 505 ms ae-6.pat2.dcp.yahoo.com [216.115.102.178]
18 283 ms 543 ms 390 ms ae-1-d161.msr1.re1.yahoo.com [216.115.108.27]
19 308 ms 580 ms 543 ms te-8-1.bas-a2.re1.yahoo.com [66.196.112.201]
20 259 ms 244 ms 328 ms ir1.fp.vip.re1.yahoo.com [69.147.125.65]

Trace complete.

[trogers]

Ahh ok, so there are two problems : 1) static noise on modem at my end 2) untweaked TCP settings facing high latency at the ISP's end.

Are you recommending me to buy a router? If I'm not wrong, that won't solve the problem wholly because of the second problem. How do I work on that? The ISP people have told me that they're working on my problem, but it's been over a week now and it's the same!

Ok, here is the new TCP Analyser report:

« SpeedGuide.net TCP Analyzer Results »
Tested on: 03.01.2011 11:05
IP address: 116.73.xxx.xxx
Client OS: Windows XP

TCP options string: 0204059c01010402
MSS: 1436
MTU: 1476
TCP Window: 64240 (NOT multiple of MSS)
RWIN Scaling: 0 bits
Unscaled RWIN : 64240
Recommended RWINs: 63184, 126368, 252736, 505472, 1010944
BDP limit (200ms): 2570kbps (321KBytes/s)
BDP limit (500ms): 1028kbps (128KBytes/s)
MTU Discovery: ON
TTL: 42
Timestamps: OFF
SACKs: ON
IP ToS: 00000000 (0)


By the way, I just did a tracert to yahoo.com again, out of curiosity and you must see the first hop now! :o

Tracing route to yahoo.com [69.147.125.65]
over a maximum of 30 hops:

1 70 ms 81 ms 95 ms 10.40.0.1
2 138 ms 11 ms 67 ms 125.99.127.237
3 19 ms 319 ms 98 ms 203.212.193.34
4 94 ms 12 ms 49 ms 203.212.193.249
5 33 ms 106 ms 105 ms 59.162.20.241.static-mumbai.vsnl.net.in [59.162.
20.241]
6 146 ms 100 ms 41 ms 59.163.16.1.static.vsnl.net.in [59.163.16.1]
7 38 ms 41 ms 73 ms 59.163.55.149.static.vsnl.net.in [59.163.55.149]

8 63 ms 46 ms 16 ms 59.163.55.149.static.vsnl.net.in [59.163.55.149]

9 16 ms 23 ms 12 ms if-14-0-0-101.core2.MLV-Mumbai.as6453.net [216.6
.13.37]
10 34 ms 99 ms 99 ms if-12-0-0.core1.MLV-Mumbai.as6453.net [209.58.10
5.81]
11 238 ms 291 ms 226 ms if-1-1-0-0.tcore1.MLV-Mumbai.as6453.net [180.87.
38.25]
12 238 ms 228 ms 266 ms if-3-2.tcore1.PYE-Paris.as6453.net [80.231.154.7
0]
13 233 ms 268 ms 348 ms if-2-2.tcore1.PVU-Paris.as6453.net [80.231.154.1
7]
14 229 ms 429 ms 318 ms if-5-871.tcore1.AEQ-Ashburn.as6453.net [216.6.51
.57]
15 227 ms 279 ms 279 ms if-2-2.tcore2.AEQ-Ashburn.as6453.net [216.6.87.1
]
16 226 ms 255 ms 228 ms 64.86.85.38
17 380 ms 283 ms 505 ms ae-6.pat2.dcp.yahoo.com [216.115.102.178]
18 283 ms 543 ms 390 ms ae-1-d161.msr1.re1.yahoo.com [216.115.108.27]
19 308 ms 580 ms 543 ms te-8-1.bas-a2.re1.yahoo.com [66.196.112.201]
20 259 ms 244 ms 328 ms ir1.fp.vip.re1.yahoo.com [69.147.125.65]

Trace complete.

Download CCleaner and use it to clean your comp and registry.

Then download Malwarebytes, install and update it, and then scan your comp for malware.

What type of internet service are you using? Cable or ADSL? Name of your ISP?

[nevillek]

I have CCleaner and Malwarebytes both and do regular scanning/update/etc. I just reformatted my PC too, 3 days back.

This ISP is "Hathway Datacom Pvt. Ltd." (www.hathway.net) and it is cable internet. Using it since 2004.

I had shifted to ADSL from Nov 2010 to Feb 2011 (from my phoneline provider "MTNL" http://mumbai.mtnl.net.in/triband/htm/intro.htm) because Hathway was giving this speed problem, and MTNL was working very well compared to Hathway, and giving me a transfer rate of 120 kbps on a 1 Mbps connection (perfect). However, of late, it had started disconnecting every now and then, which made it impossible to play any online games, downloads, etc. The lineman even changed my telephone cables but it did no good. I waited 2 weeks and finally shifted back to Hathway, because atleast it doesn't disconnect every hour like MTNL. Here's a thread on another forum where I've discussed this few days back : http://broadbandforum.in/mtnl-broadband/66239-shifted-mtnl-hathway-help-needed/#post460888

[trogers]

I waited 2 weeks and finally shifted back to Hathway, because atleast it doesn't disconnect every hour like MTNL.

Log into your router and make sure MTU is set to 1500, and MSS is 1460.

[nevillek]

Log into your router and make sure MTU is set to 1500, and MSS is 1460.

I don't have a router, I have a cable modem. Not sure what you're saying.

[trogers]

I had shifted to ADSL from Nov 2010 to Feb 2011


Also, a ADSL router cannot be used with cable internet.

[nevillek]

Also, a ADSL router cannot be used with cable internet.

I think you're misunderstanding. I have a cable modem for my cable internet (the one giving me trouble) and an ADSL router for my ADSL connection (which I recently discontinued using due to frequent disconnection of that ISP's connection although it was giving me good speeds).

[trogers]

I think you're misunderstanding. I have a cable modem for my cable internet (the one giving me trouble) and an ADSL router for my ADSL connection (which I recently discontinued using due to frequent disconnection of that ISP's connection although it was giving me good speeds).

You will need to get a router to work with your cable modem. Make sure it is not for ADSL.

Your MTU cannot be adjusted to 1500 probably because your comp is connected to the cable modem by USB. When you get the router, make sure MTU is set to 1500, and MSS to 1460.

[nevillek]

You will need to get a router to work with your cable modem. Make sure it is not for ADSL.

Your MTU cannot be adjusted to 1500 probably because your comp is connected to the cable modem by USB. When you get the router, make sure MTU is set to 1500, and MSS to 1460.

Should I request the cable internet company itself to provide the router to work with their cable modem? Maybe if I do that, they would stop monitoring my connection from their end thinking it's a problem at my end?

Not sure if this helps but my comp is connected to the cable modem with the LAN cable, one end of it inserted into the backside of the CPU and the other into the "LAN" slot of the cable modem. The cable modem has a very thick black colored "POWER" cable coming from outside my window.

I tried to put my IP address in the address bar of Internet Explorer but it doesn't open any page, UNLIKE my ADSL connection where it would open a page of the router configuration when I put the IP address in Internet explorer.

[trogers]

Should I request the cable internet company itself to provide the router to work with their cable modem? Maybe if I do that, they would stop monitoring my connection from their end thinking it's a problem at my end?

Not sure if this helps but my comp is connected to the cable modem with the LAN cable, one end of it inserted into the backside of the CPU and the other into the "LAN" slot of the cable modem. The cable modem has a very thick black colored "POWER" cable coming from outside my window.

I tried to put my IP address in the address bar of Internet Explorer but it doesn't open any page, UNLIKE my ADSL connection where it would open a page of the router configuration when I put the IP address in Internet explorer.

Check the user manual of the modem on how to log into it to check its power levels.

Better for you to buy your own router, as most ISP carries cheap models...lol. You can search the internet for some good make and model as reviewed by users.

[nevillek]

I can't find the user manual but I will ask their tech support.

I'm planning to shift to another private ISP called "Fivenet" ( http://www.fivenetwork.com/our-services/broadband-plans/special-new-year-plan.html )which promises upto 10 Mbps speed in the same price (infact lesser) and I've heard good reviews about it too. But the problem is they are not into my area yet and will be, in a couple of weeks. So should I still be buying a router? Would it do me any good after I stop using Hathway? Thanks!

P.S. I just noticed something weird. As I had said about my Hathway cable internet connection, I get a transfer rate of 30kbps on 1 Mbps plan from 99% of the sites, however, I just tried downloading multiple files and surprisingly, the total speed from all the downloads adds up close to 100kbps but individual file transfer rates don't go beyond 30-35kbps. What's up with that? Now, my MTNL ADSL connection never behaved that way.

[trogers]

I can't find the user manual but I will ask their tech support.

I'm planning to shift to another private ISP called "Fivenet" ( http://www.fivenetwork.com/our-services/broadband-plans/special-new-year-plan.html )which promises upto 10 Mbps speed in the same price (infact lesser) and I've heard good reviews about it too. But the problem is they are not into my area yet and will be, in a couple of weeks. So should I still be buying a router? Would it do me any good after I stop using Hathway? Thanks!

P.S. I just noticed something weird. As I had said about my Hathway cable internet connection, I get a transfer rate of 30kbps on 1 Mbps plan from 99% of the sites, however, I just tried downloading multiple files and surprisingly, the total speed from all the downloads adds up close to 100kbps but individual file transfer rates don't go beyond 30-35kbps. What's up with that? Now, my MTNL ADSL connection never behaved that way.

What are you using to do the download? A browser or a torrent program?

[nevillek]

Internet Explorer or Mozilla Firefox.

OMG, I just downloaded Download Accelerator and it's giving me a transfer rate of 120 kbps. WTF! Not sure what's going on?

[trogers]

Internet Explorer or Mozilla Firefox.

OMG, I just downloaded Download Accelerator and it's giving me a transfer rate of 120 kbps. WTF! Not sure what's going on?

Downloading through a browser uses a one-to-one connection. How fast you can download also depends on how fast the other side can send to you.

Using a download accelerator means having it breaking up the file into many parts and have it downloaded through many simultaneous connections, not just one connection. At the end of the download, the program will re-assemble the pieces back into a single file. A torrent program does this as well.

[nevillek]

Alright, so far so good then I guess.