Very slow Internet thru 3 different routers, fast with just DSL modem
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I see very slow internet when my laptop is cabled thru a router--ping time ranges between 1,000 and 2,500 ms!
When I connect ethernet directly to DSL modem and sign into PPPoE, the ping time is under 50 ms so it's not an ISP problem.
I have tried 3 different routers with the same result. (The routers are an old Linksys, an old Netgear, and a newish TP-Link, all with factory firmware.) So it seems unlikely it's a router problem.
Wi-fi to the router is likewise slow.
Ping time to the router's IP is 7 ms.
I have tried several different ethernet cables, old and new.
So it doesn't seem to be a router problem, or a cable problem, or a Win10/laptop problem.
Any thoughts on what the cause might be?? Thank you all very much.
networking router internet ping
asked Nov 28 at 23:09
Bill.yeg
91
add a comment |
up vote
1
down vote
favorite
I see very slow internet when my laptop is cabled thru a router--ping time ranges between 1,000 and 2,500 ms!
When I connect ethernet directly to DSL modem and sign into PPPoE, the ping time is under 50 ms so it's not an ISP problem.
I have tried 3 different routers with the same result. (The routers are an old Linksys, an old Netgear, and a newish TP-Link, all with factory firmware.) So it seems unlikely it's a router problem.
Wi-fi to the router is likewise slow.
Ping time to the router's IP is 7 ms.
I have tried several different ethernet cables, old and new.
So it doesn't seem to be a router problem, or a cable problem, or a Win10/laptop problem.
Any thoughts on what the cause might be?? Thank you all very much.
networking router internet ping
asked Nov 28 at 23:09
Bill.yeg
91
So you are putting the PPPoE credentials in the router? What is your MTU size setting, did you lower it to 1452 in the router?
– acejavelin
Nov 29 at 1:03
When you connect a router to the DSL modem, do you switch the DSL modem into a simple bridging modem mode, and configure your router to act as the PPPoE client? If not, you're almost certainly doing double NAT, and as acejavelin suggested, you probably have an MTU size problem and your DSL modem is probably too stupid to do support MSS clamping or Path MTU Discovery correctly.
– Spiff
Nov 29 at 1:12
The router is configured as the PPPoE client. The MTU is 1480 which I have never adjusted. The modem (Actiontec T2200M) will be in whatever the factory default mode is, unless my ISP changed it before they shipped it to me. I will log into the admin GUI and report back.
– Bill.yeg
Nov 29 at 1:54
One new point: I am running a utility that pings Google & Level 3 DNSs every 20 sec and logs the time. The ping time is relatively stable over hours but it does change. At about 16:40, the ping time decreased from about 900 to about 40 over a period of about 2 minutes where it stayed until 18:55. Then until 19:02 it was about 400. Then it went back down to about 40. (It's now 19:09.) Thank you for your insights & help!
– Bill.yeg
Nov 29 at 2:09
add a comment |
up vote
1
down vote
favorite
up vote
1
down vote
favorite
I see very slow internet when my laptop is cabled thru a router--ping time ranges between 1,000 and 2,500 ms!
When I connect ethernet directly to DSL modem and sign into PPPoE, the ping time is under 50 ms so it's not an ISP problem.
I have tried 3 different routers with the same result. (The routers are an old Linksys, an old Netgear, and a newish TP-Link, all with factory firmware.) So it seems unlikely it's a router problem.
Wi-fi to the router is likewise slow.
Ping time to the router's IP is 7 ms.
I have tried several different ethernet cables, old and new.
So it doesn't seem to be a router problem, or a cable problem, or a Win10/laptop problem.
Any thoughts on what the cause might be?? Thank you all very much.
networking router internet ping
asked Nov 28 at 23:09
Bill.yeg
91
I see very slow internet when my laptop is cabled thru a router--ping time ranges between 1,000 and 2,500 ms!
When I connect ethernet directly to DSL modem and sign into PPPoE, the ping time is under 50 ms so it's not an ISP problem.
I have tried 3 different routers with the same result. (The routers are an old Linksys, an old Netgear, and a newish TP-Link, all with factory firmware.) So it seems unlikely it's a router problem.
Wi-fi to the router is likewise slow.
Ping time to the router's IP is 7 ms.
I have tried several different ethernet cables, old and new.
So it doesn't seem to be a router problem, or a cable problem, or a Win10/laptop problem.
Any thoughts on what the cause might be?? Thank you all very much.
networking router internet ping
networking router internet ping
asked Nov 28 at 23:09
Bill.yeg
91
asked Nov 28 at 23:09
Bill.yeg
91
asked Nov 28 at 23:09
Bill.yeg
91
asked Nov 28 at 23:09
Bill.yeg
91
asked Nov 28 at 23:09
Bill.yeg
91
91
So you are putting the PPPoE credentials in the router? What is your MTU size setting, did you lower it to 1452 in the router?
– acejavelin
Nov 29 at 1:03
When you connect a router to the DSL modem, do you switch the DSL modem into a simple bridging modem mode, and configure your router to act as the PPPoE client? If not, you're almost certainly doing double NAT, and as acejavelin suggested, you probably have an MTU size problem and your DSL modem is probably too stupid to do support MSS clamping or Path MTU Discovery correctly.
– Spiff
Nov 29 at 1:12
The router is configured as the PPPoE client. The MTU is 1480 which I have never adjusted. The modem (Actiontec T2200M) will be in whatever the factory default mode is, unless my ISP changed it before they shipped it to me. I will log into the admin GUI and report back.
– Bill.yeg
Nov 29 at 1:54
One new point: I am running a utility that pings Google & Level 3 DNSs every 20 sec and logs the time. The ping time is relatively stable over hours but it does change. At about 16:40, the ping time decreased from about 900 to about 40 over a period of about 2 minutes where it stayed until 18:55. Then until 19:02 it was about 400. Then it went back down to about 40. (It's now 19:09.) Thank you for your insights & help!
– Bill.yeg
Nov 29 at 2:09
add a comment |
So you are putting the PPPoE credentials in the router? What is your MTU size setting, did you lower it to 1452 in the router?
– acejavelin
Nov 29 at 1:03
When you connect a router to the DSL modem, do you switch the DSL modem into a simple bridging modem mode, and configure your router to act as the PPPoE client? If not, you're almost certainly doing double NAT, and as acejavelin suggested, you probably have an MTU size problem and your DSL modem is probably too stupid to do support MSS clamping or Path MTU Discovery correctly.
– Spiff
Nov 29 at 1:12
The router is configured as the PPPoE client. The MTU is 1480 which I have never adjusted. The modem (Actiontec T2200M) will be in whatever the factory default mode is, unless my ISP changed it before they shipped it to me. I will log into the admin GUI and report back.
– Bill.yeg
Nov 29 at 1:54
One new point: I am running a utility that pings Google & Level 3 DNSs every 20 sec and logs the time. The ping time is relatively stable over hours but it does change. At about 16:40, the ping time decreased from about 900 to about 40 over a period of about 2 minutes where it stayed until 18:55. Then until 19:02 it was about 400. Then it went back down to about 40. (It's now 19:09.) Thank you for your insights & help!
– Bill.yeg
Nov 29 at 2:09
So you are putting the PPPoE credentials in the router? What is your MTU size setting, did you lower it to 1452 in the router?
– acejavelin
Nov 29 at 1:03
So you are putting the PPPoE credentials in the router? What is your MTU size setting, did you lower it to 1452 in the router?
– acejavelin
Nov 29 at 1:03
When you connect a router to the DSL modem, do you switch the DSL modem into a simple bridging modem mode, and configure your router to act as the PPPoE client? If not, you're almost certainly doing double NAT, and as acejavelin suggested, you probably have an MTU size problem and your DSL modem is probably too stupid to do support MSS clamping or Path MTU Discovery correctly.
– Spiff
Nov 29 at 1:12
When you connect a router to the DSL modem, do you switch the DSL modem into a simple bridging modem mode, and configure your router to act as the PPPoE client? If not, you're almost certainly doing double NAT, and as acejavelin suggested, you probably have an MTU size problem and your DSL modem is probably too stupid to do support MSS clamping or Path MTU Discovery correctly.
– Spiff
Nov 29 at 1:12
The router is configured as the PPPoE client. The MTU is 1480 which I have never adjusted. The modem (Actiontec T2200M) will be in whatever the factory default mode is, unless my ISP changed it before they shipped it to me. I will log into the admin GUI and report back.
– Bill.yeg
Nov 29 at 1:54
The router is configured as the PPPoE client. The MTU is 1480 which I have never adjusted. The modem (Actiontec T2200M) will be in whatever the factory default mode is, unless my ISP changed it before they shipped it to me. I will log into the admin GUI and report back.
– Bill.yeg
Nov 29 at 1:54
One new point: I am running a utility that pings Google & Level 3 DNSs every 20 sec and logs the time. The ping time is relatively stable over hours but it does change. At about 16:40, the ping time decreased from about 900 to about 40 over a period of about 2 minutes where it stayed until 18:55. Then until 19:02 it was about 400. Then it went back down to about 40. (It's now 19:09.) Thank you for your insights & help!
– Bill.yeg
Nov 29 at 2:09
One new point: I am running a utility that pings Google & Level 3 DNSs every 20 sec and logs the time. The ping time is relatively stable over hours but it does change. At about 16:40, the ping time decreased from about 900 to about 40 over a period of about 2 minutes where it stayed until 18:55. Then until 19:02 it was about 400. Then it went back down to about 40. (It's now 19:09.) Thank you for your insights & help!
– Bill.yeg
Nov 29 at 2:09
add a comment |
1 Answer
1
active
oldest
votes
up vote
1
down vote
I've had this problem before, and new routers didn't solve my issue. In my case, the problem was bufferbloat.
Bufferbloat is high latency (or lag) that occurs when there’s other
traffic on your network.
I had to install new firmware on my router that supported Smart Queue Management. Now I can download massive files while maintaining a stable ping.
Take this test and note the bufferbloat score.
If you get a grade less than a 'c', then bufferbloat may be your issue. Follow the instructions here.
Install LEDE 17.01 or newer, and follow the video at: https://www.youtube.com/watch?v=FvYhifdQ92Q
It involves installing new router firmware, something that supports SQM. OpenWrt is a bit more involved than factory firmware, but the documentation should be able to help you out.
answered Nov 29 at 8:44
BLARG
6617
1
Thank you muchly, BLARG!
– Bill.yeg
Nov 30 at 21:15
1
dslreports.com/speedtest gives me an F on bufferbloat. Thank you for all your informative comments and links! I guess I have router firmware to update. :)
– Bill.yeg
Nov 30 at 21:22
add a comment |
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1 Answer
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1 Answer
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oldest
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active
oldest
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up vote
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down vote
I've had this problem before, and new routers didn't solve my issue. In my case, the problem was bufferbloat.
Bufferbloat is high latency (or lag) that occurs when there’s other
traffic on your network.
I had to install new firmware on my router that supported Smart Queue Management. Now I can download massive files while maintaining a stable ping.
Take this test and note the bufferbloat score.
If you get a grade less than a 'c', then bufferbloat may be your issue. Follow the instructions here.
Install LEDE 17.01 or newer, and follow the video at: https://www.youtube.com/watch?v=FvYhifdQ92Q
It involves installing new router firmware, something that supports SQM. OpenWrt is a bit more involved than factory firmware, but the documentation should be able to help you out.
answered Nov 29 at 8:44
BLARG
6617
1
Thank you muchly, BLARG!
– Bill.yeg
Nov 30 at 21:15
1
dslreports.com/speedtest gives me an F on bufferbloat. Thank you for all your informative comments and links! I guess I have router firmware to update. :)
– Bill.yeg
Nov 30 at 21:22
add a comment |
up vote
1
down vote
I've had this problem before, and new routers didn't solve my issue. In my case, the problem was bufferbloat.
Bufferbloat is high latency (or lag) that occurs when there’s other
traffic on your network.
I had to install new firmware on my router that supported Smart Queue Management. Now I can download massive files while maintaining a stable ping.
Take this test and note the bufferbloat score.
If you get a grade less than a 'c', then bufferbloat may be your issue. Follow the instructions here.
Install LEDE 17.01 or newer, and follow the video at: https://www.youtube.com/watch?v=FvYhifdQ92Q
It involves installing new router firmware, something that supports SQM. OpenWrt is a bit more involved than factory firmware, but the documentation should be able to help you out.
answered Nov 29 at 8:44
BLARG
6617
1
Thank you muchly, BLARG!
– Bill.yeg
Nov 30 at 21:15
1
dslreports.com/speedtest gives me an F on bufferbloat. Thank you for all your informative comments and links! I guess I have router firmware to update. :)
– Bill.yeg
Nov 30 at 21:22
add a comment |
up vote
1
down vote
up vote
1
down vote
I've had this problem before, and new routers didn't solve my issue. In my case, the problem was bufferbloat.
Bufferbloat is high latency (or lag) that occurs when there’s other
traffic on your network.
I had to install new firmware on my router that supported Smart Queue Management. Now I can download massive files while maintaining a stable ping.
Take this test and note the bufferbloat score.
If you get a grade less than a 'c', then bufferbloat may be your issue. Follow the instructions here.
Install LEDE 17.01 or newer, and follow the video at: https://www.youtube.com/watch?v=FvYhifdQ92Q
It involves installing new router firmware, something that supports SQM. OpenWrt is a bit more involved than factory firmware, but the documentation should be able to help you out.
answered Nov 29 at 8:44
BLARG
6617
I've had this problem before, and new routers didn't solve my issue. In my case, the problem was bufferbloat.
Bufferbloat is high latency (or lag) that occurs when there’s other
traffic on your network.
I had to install new firmware on my router that supported Smart Queue Management. Now I can download massive files while maintaining a stable ping.
Take this test and note the bufferbloat score.
If you get a grade less than a 'c', then bufferbloat may be your issue. Follow the instructions here.
Install LEDE 17.01 or newer, and follow the video at: https://www.youtube.com/watch?v=FvYhifdQ92Q
It involves installing new router firmware, something that supports SQM. OpenWrt is a bit more involved than factory firmware, but the documentation should be able to help you out.
answered Nov 29 at 8:44
BLARG
6617
answered Nov 29 at 8:44
BLARG
6617
answered Nov 29 at 8:44
BLARG
6617
answered Nov 29 at 8:44
BLARG
6617
6617
1
Thank you muchly, BLARG!
– Bill.yeg
Nov 30 at 21:15
1
dslreports.com/speedtest gives me an F on bufferbloat. Thank you for all your informative comments and links! I guess I have router firmware to update. :)
– Bill.yeg
Nov 30 at 21:22
add a comment |
1
Thank you muchly, BLARG!
– Bill.yeg
Nov 30 at 21:15
1
dslreports.com/speedtest gives me an F on bufferbloat. Thank you for all your informative comments and links! I guess I have router firmware to update. :)
– Bill.yeg
Nov 30 at 21:22
1
1
Thank you muchly, BLARG!
– Bill.yeg
Nov 30 at 21:15
Thank you muchly, BLARG!
– Bill.yeg
Nov 30 at 21:15
1
1
dslreports.com/speedtest gives me an F on bufferbloat. Thank you for all your informative comments and links! I guess I have router firmware to update. :)
– Bill.yeg
Nov 30 at 21:22
dslreports.com/speedtest gives me an F on bufferbloat. Thank you for all your informative comments and links! I guess I have router firmware to update. :)
– Bill.yeg
Nov 30 at 21:22
add a comment |
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So you are putting the PPPoE credentials in the router? What is your MTU size setting, did you lower it to 1452 in the router?
– acejavelin
Nov 29 at 1:03
When you connect a router to the DSL modem, do you switch the DSL modem into a simple bridging modem mode, and configure your router to act as the PPPoE client? If not, you're almost certainly doing double NAT, and as acejavelin suggested, you probably have an MTU size problem and your DSL modem is probably too stupid to do support MSS clamping or Path MTU Discovery correctly.
– Spiff
Nov 29 at 1:12
The router is configured as the PPPoE client. The MTU is 1480 which I have never adjusted. The modem (Actiontec T2200M) will be in whatever the factory default mode is, unless my ISP changed it before they shipped it to me. I will log into the admin GUI and report back.
– Bill.yeg
Nov 29 at 1:54
One new point: I am running a utility that pings Google & Level 3 DNSs every 20 sec and logs the time. The ping time is relatively stable over hours but it does change. At about 16:40, the ping time decreased from about 900 to about 40 over a period of about 2 minutes where it stayed until 18:55. Then until 19:02 it was about 400. Then it went back down to about 40. (It's now 19:09.) Thank you for your insights & help!
– Bill.yeg
Nov 29 at 2:09