High ping with Ubuntu 17.10 host
.everyoneloves__top-leaderboard:empty,.everyoneloves__mid-leaderboard:empty,.everyoneloves__bot-mid-leaderboard:empty{ height:90px;width:728px;box-sizing:border-box;
}
When pinging the computers in my WLAN all hosts (router, raspi, Debian Stretch desktop, ...) have low latencies of a few ms, except for one: my Ubuntu 17.10 desktop has latencies of 50 to several 100 ms; this makes working in the shell almost impossible.
This seems to be a SOFTWARE problem:
The problem started some weeks ago. I think it coincided with my upgrade from Ubuntu 16.04 LTS to Ubuntu 17.10. Before that, latency was no problem.
The same computer, no changes, has excellent latency when running Windows 10 instead of Ubuntu 17.10. With Knoppix 8.2, however, latency is bad, too.
Both Windows 10 and Ubuntu 17.10 use the 2.4 GHz frequency range and the router is locked to a fixed channel within that range.
Forcing Ubuntu 17.10 (and the router) to use other channels or the 5 GHz range has no effect.
With Ubuntu 17.10, when switching WLAN off and then on again, latency is excellent for roughly 5 seconds and then gets and stays bad.
I would be very grateful for any idea what the problem could be.
ping latency wireless-networking
asked May 30 '18 at 12:01
phlegmaxphlegmax
1
migrated from serverfault.com May 30 '18 at 12:37
This question came from our site for system and network administrators.
add a comment |
When pinging the computers in my WLAN all hosts (router, raspi, Debian Stretch desktop, ...) have low latencies of a few ms, except for one: my Ubuntu 17.10 desktop has latencies of 50 to several 100 ms; this makes working in the shell almost impossible.
This seems to be a SOFTWARE problem:
The problem started some weeks ago. I think it coincided with my upgrade from Ubuntu 16.04 LTS to Ubuntu 17.10. Before that, latency was no problem.
The same computer, no changes, has excellent latency when running Windows 10 instead of Ubuntu 17.10. With Knoppix 8.2, however, latency is bad, too.
Both Windows 10 and Ubuntu 17.10 use the 2.4 GHz frequency range and the router is locked to a fixed channel within that range.
Forcing Ubuntu 17.10 (and the router) to use other channels or the 5 GHz range has no effect.
With Ubuntu 17.10, when switching WLAN off and then on again, latency is excellent for roughly 5 seconds and then gets and stays bad.
I would be very grateful for any idea what the problem could be.
ping latency wireless-networking
asked May 30 '18 at 12:01
phlegmaxphlegmax
1
migrated from serverfault.com May 30 '18 at 12:37
This question came from our site for system and network administrators.
add a comment |
When pinging the computers in my WLAN all hosts (router, raspi, Debian Stretch desktop, ...) have low latencies of a few ms, except for one: my Ubuntu 17.10 desktop has latencies of 50 to several 100 ms; this makes working in the shell almost impossible.
This seems to be a SOFTWARE problem:
The problem started some weeks ago. I think it coincided with my upgrade from Ubuntu 16.04 LTS to Ubuntu 17.10. Before that, latency was no problem.
The same computer, no changes, has excellent latency when running Windows 10 instead of Ubuntu 17.10. With Knoppix 8.2, however, latency is bad, too.
Both Windows 10 and Ubuntu 17.10 use the 2.4 GHz frequency range and the router is locked to a fixed channel within that range.
Forcing Ubuntu 17.10 (and the router) to use other channels or the 5 GHz range has no effect.
With Ubuntu 17.10, when switching WLAN off and then on again, latency is excellent for roughly 5 seconds and then gets and stays bad.
I would be very grateful for any idea what the problem could be.
ping latency wireless-networking
asked May 30 '18 at 12:01
phlegmaxphlegmax
1
When pinging the computers in my WLAN all hosts (router, raspi, Debian Stretch desktop, ...) have low latencies of a few ms, except for one: my Ubuntu 17.10 desktop has latencies of 50 to several 100 ms; this makes working in the shell almost impossible.
This seems to be a SOFTWARE problem:
The problem started some weeks ago. I think it coincided with my upgrade from Ubuntu 16.04 LTS to Ubuntu 17.10. Before that, latency was no problem.
The same computer, no changes, has excellent latency when running Windows 10 instead of Ubuntu 17.10. With Knoppix 8.2, however, latency is bad, too.
Both Windows 10 and Ubuntu 17.10 use the 2.4 GHz frequency range and the router is locked to a fixed channel within that range.
Forcing Ubuntu 17.10 (and the router) to use other channels or the 5 GHz range has no effect.
With Ubuntu 17.10, when switching WLAN off and then on again, latency is excellent for roughly 5 seconds and then gets and stays bad.
I would be very grateful for any idea what the problem could be.
ping latency wireless-networking
ping latency wireless-networking
asked May 30 '18 at 12:01
phlegmaxphlegmax
1
asked May 30 '18 at 12:01
phlegmaxphlegmax
1
asked May 30 '18 at 12:01
phlegmaxphlegmax
1
asked May 30 '18 at 12:01
phlegmaxphlegmax
1
asked May 30 '18 at 12:01
phlegmaxphlegmax
1
1
migrated from serverfault.com May 30 '18 at 12:37
This question came from our site for system and network administrators.
migrated from serverfault.com May 30 '18 at 12:37
This question came from our site for system and network administrators.
add a comment |
add a comment |
1 Answer
1
active
oldest
votes
I have the same problem. I found a response here
Basically, it is caused by the power management features. After disable it, the latency improves a lot.
sudo iwconfig wlan0 power off
answered Jan 29 at 9:43
nhnghianhnghia
1
add a comment |
Your Answer
StackExchange.ready(function() {
var channelOptions = {
tags: "".split(" "),
id: "3"
};
initTagRenderer("".split(" "), "".split(" "), channelOptions);
StackExchange.using("externalEditor", function() {
// Have to fire editor after snippets, if snippets enabled
if (StackExchange.settings.snippets.snippetsEnabled) {
StackExchange.using("snippets", function() {
createEditor();
});
}
else {
createEditor();
}
});
function createEditor() {
StackExchange.prepareEditor({
heartbeatType: 'answer',
autoActivateHeartbeat: false,
convertImagesToLinks: true,
noModals: true,
showLowRepImageUploadWarning: true,
reputationToPostImages: 10,
bindNavPrevention: true,
postfix: "",
imageUploader: {
brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/3.0/"u003ecc by-sa 3.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
allowUrls: true
},
onDemand: true,
discardSelector: ".discard-answer"
,immediatelyShowMarkdownHelp:true
});
}
});
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fsuperuser.com%2fquestions%2f1327165%2fhigh-ping-with-ubuntu-17-10-host%23new-answer', 'question_page');
}
);
Post as a guest
Required, but never shown
1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
I have the same problem. I found a response here
Basically, it is caused by the power management features. After disable it, the latency improves a lot.
sudo iwconfig wlan0 power off
answered Jan 29 at 9:43
nhnghianhnghia
1
add a comment |
I have the same problem. I found a response here
Basically, it is caused by the power management features. After disable it, the latency improves a lot.
sudo iwconfig wlan0 power off
answered Jan 29 at 9:43
nhnghianhnghia
1
add a comment |
I have the same problem. I found a response here
Basically, it is caused by the power management features. After disable it, the latency improves a lot.
sudo iwconfig wlan0 power off
answered Jan 29 at 9:43
nhnghianhnghia
1
I have the same problem. I found a response here
Basically, it is caused by the power management features. After disable it, the latency improves a lot.
sudo iwconfig wlan0 power off
answered Jan 29 at 9:43
nhnghianhnghia
1
answered Jan 29 at 9:43
nhnghianhnghia
1
answered Jan 29 at 9:43
nhnghianhnghia
1
answered Jan 29 at 9:43
nhnghianhnghia
1
1
add a comment |
add a comment |
Thanks for contributing an answer to Super User!
- Please be sure to answer the question. Provide details and share your research!
But avoid …
- Asking for help, clarification, or responding to other answers.
- Making statements based on opinion; back them up with references or personal experience.
To learn more, see our tips on writing great answers.
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fsuperuser.com%2fquestions%2f1327165%2fhigh-ping-with-ubuntu-17-10-host%23new-answer', 'question_page');
}
);
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
