Internet acting really slow on desktop

seth · 2023-05-08 20:47:11

So the system does up to (at least) ~200Mbps on the LAN (and from previous tests ~80Mbps on the WAN, in line w/ your internet plan) which is ok-ish for a 802.11n connection (I guess the laptops aren't on a wired connection?)

Wrt the previous

Some speed tests I ran gave 0.00 Mbps. Some give 10 Mbps, as you saw

: how consistent are the iperf results?

Eysse · 2023-05-09 10:25:10

The iperf results are very consistent, a margin of a ~1 mbps differences, so nothing weird there. Should I try to run a couple speedtest while I'm running a couple if iperfs and post all of them?

seth · 2023-05-09 12:44:57

You can, but the implication is that this is a WAN issue.
Maybe the router. Did you at any point reboot the latter to try to remedy this?

Eysse · 2023-05-09 14:16:41

I have not, and will try it just for being sure later, but I highly doubt it will work, as all other devices or even operation systems would not be affected.

seth · 2023-05-09 14:23:19

for ((i=0;i<16;++i)); do wget -nv --show-progress -O /dev/null "http://139.162.130.8/100MB-frankfurt.bin"; done

Post the entire output.

Eysse · 2023-05-09 14:42:15

/dev/null                          100%[=============================================================>] 100.00M  11.6MB/s    in 8.4s    
2023-05-09 16:39:53 URL:http://139.162.130.8/100MB-frankfurt.bin [104857600/104857600] -> "/dev/null" [1]
/dev/null                          100%[=============================================================>] 100.00M  11.6MB/s    in 8.6s    
2023-05-09 16:40:02 URL:http://139.162.130.8/100MB-frankfurt.bin [104857600/104857600] -> "/dev/null" [1]
/dev/null                          100%[=============================================================>] 100.00M  11.6MB/s    in 8.6s    
2023-05-09 16:40:11 URL:http://139.162.130.8/100MB-frankfurt.bin [104857600/104857600] -> "/dev/null" [1]
/dev/null                          100%[=============================================================>] 100.00M  11.6MB/s    in 8.6s    
2023-05-09 16:40:19 URL:http://139.162.130.8/100MB-frankfurt.bin [104857600/104857600] -> "/dev/null" [1]
/dev/null                          100%[=============================================================>] 100.00M  11.6MB/s    in 8.6s    
2023-05-09 16:40:28 URL:http://139.162.130.8/100MB-frankfurt.bin [104857600/104857600] -> "/dev/null" [1]
/dev/null                          100%[=============================================================>] 100.00M  11.5MB/s    in 8.6s    
2023-05-09 16:40:36 URL:http://139.162.130.8/100MB-frankfurt.bin [104857600/104857600] -> "/dev/null" [1]
/dev/null                          100%[=============================================================>] 100.00M  11.7MB/s    in 8.6s    
2023-05-09 16:40:45 URL:http://139.162.130.8/100MB-frankfurt.bin [104857600/104857600] -> "/dev/null" [1]
/dev/null                          100%[=============================================================>] 100.00M  11.6MB/s    in 8.6s    
2023-05-09 16:40:54 URL:http://139.162.130.8/100MB-frankfurt.bin [104857600/104857600] -> "/dev/null" [1]
/dev/null                          100%[=============================================================>] 100.00M  11.6MB/s    in 8.6s    
2023-05-09 16:41:02 URL:http://139.162.130.8/100MB-frankfurt.bin [104857600/104857600] -> "/dev/null" [1]
/dev/null                          100%[=============================================================>] 100.00M  11.6MB/s    in 8.6s    
2023-05-09 16:41:11 URL:http://139.162.130.8/100MB-frankfurt.bin [104857600/104857600] -> "/dev/null" [1]
/dev/null                          100%[=============================================================>] 100.00M  11.6MB/s    in 8.6s    
2023-05-09 16:41:20 URL:http://139.162.130.8/100MB-frankfurt.bin [104857600/104857600] -> "/dev/null" [1]
/dev/null                          100%[=============================================================>] 100.00M  11.6MB/s    in 8.6s    
2023-05-09 16:41:28 URL:http://139.162.130.8/100MB-frankfurt.bin [104857600/104857600] -> "/dev/null" [1]
/dev/null                          100%[=============================================================>] 100.00M  11.6MB/s    in 8.6s    
2023-05-09 16:41:37 URL:http://139.162.130.8/100MB-frankfurt.bin [104857600/104857600] -> "/dev/null" [1]
/dev/null                          100%[=============================================================>] 100.00M  11.6MB/s    in 8.6s    
2023-05-09 16:41:45 URL:http://139.162.130.8/100MB-frankfurt.bin [104857600/104857600] -> "/dev/null" [1]
/dev/null                          100%[=============================================================>] 100.00M  11.6MB/s    in 8.6s    
2023-05-09 16:41:54 URL:http://139.162.130.8/100MB-frankfurt.bin [104857600/104857600] -> "/dev/null" [1]
/dev/null                          100%[=============================================================>] 100.00M  11.6MB/s    in 8.7s    
2023-05-09 16:42:03 URL:http://139.162.130.8/100MB-frankfurt.bin [104857600/104857600] -> "/dev/null" [1]

Eysse · 2023-05-09 14:43:49

Oh wait, this is an instance of my internet working at full speed. It's probably gone again after a while...

EDIT: actually, it's continuing to be good for suspiciously long. I guess restarting the router fixed it. I'll update the thread if it comes back again, but for now, it's fixed. Thanks for the support!!

Last edited by Eysse (2023-05-09 15:03:13)

Eysse · 2023-05-10 19:06:24

Nevermind, that was temporarily. No still no luck.
New output of

for ((i=0;i<16;++i)); do wget -nv --show-progress -O /dev/null "http://139.162.130.8/100MB-frankfurt.bin"; done

:

/dev/null                          100%[==============================================================>] 100.00M  11.3MB/s    in 8.6s    
2023-05-10 20:57:59 URL:http://139.162.130.8/100MB-frankfurt.bin [104857600/104857600] -> "/dev/null" [1]
/dev/null                          100%[==============================================================>] 100.00M  11.4MB/s    in 8.8s    
2023-05-10 20:58:08 URL:http://139.162.130.8/100MB-frankfurt.bin [104857600/104857600] -> "/dev/null" [1]
/dev/null                          100%[==============================================================>] 100.00M  11.2MB/s    in 9.5s    
2023-05-10 20:58:18 URL:http://139.162.130.8/100MB-frankfurt.bin [104857600/104857600] -> "/dev/null" [1]
/dev/null                          100%[==============================================================>] 100.00M  11.7MB/s    in 8.8s    
2023-05-10 20:58:27 URL:http://139.162.130.8/100MB-frankfurt.bin [104857600/104857600] -> "/dev/null" [1]
/dev/null                          100%[==============================================================>] 100.00M  10.9MB/s    in 8.9s    
2023-05-10 20:58:36 URL:http://139.162.130.8/100MB-frankfurt.bin [104857600/104857600] -> "/dev/null" [1]
/dev/null                          100%[==============================================================>] 100.00M  11.4MB/s    in 8.7s    
2023-05-10 20:58:45 URL:http://139.162.130.8/100MB-frankfurt.bin [104857600/104857600] -> "/dev/null" [1]
/dev/null                          100%[==============================================================>] 100.00M  11.3MB/s    in 9.0s    
2023-05-10 20:58:54 URL:http://139.162.130.8/100MB-frankfurt.bin [104857600/104857600] -> "/dev/null" [1]
/dev/null                          100%[==============================================================>] 100.00M  11.4MB/s    in 8.9s    
2023-05-10 20:59:03 URL:http://139.162.130.8/100MB-frankfurt.bin [104857600/104857600] -> "/dev/null" [1]
/dev/null                          100%[==============================================================>] 100.00M  11.5MB/s    in 8.6s    
2023-05-10 20:59:12 URL:http://139.162.130.8/100MB-frankfurt.bin [104857600/104857600] -> "/dev/null" [1]
/dev/null                          100%[==============================================================>] 100.00M  11.1MB/s    in 8.8s    
2023-05-10 20:59:24 URL:http://139.162.130.8/100MB-frankfurt.bin [104857600/104857600] -> "/dev/null" [1]
/dev/null                          100%[==============================================================>] 100.00M  11.4MB/s    in 9.4s    
2023-05-10 20:59:33 URL:http://139.162.130.8/100MB-frankfurt.bin [104857600/104857600] -> "/dev/null" [1]
/dev/null                          100%[==============================================================>] 100.00M  11.5MB/s    in 8.5s    
2023-05-10 20:59:43 URL:http://139.162.130.8/100MB-frankfurt.bin [104857600/104857600] -> "/dev/null" [1]
/dev/null                          100%[==============================================================>] 100.00M  11.4MB/s    in 8.7s    
2023-05-10 20:59:52 URL:http://139.162.130.8/100MB-frankfurt.bin [104857600/104857600] -> "/dev/null" [1]
/dev/null                          100%[==============================================================>] 100.00M  11.5MB/s    in 8.5s    
2023-05-10 21:00:03 URL:http://139.162.130.8/100MB-frankfurt.bin [104857600/104857600] -> "/dev/null" [1]
/dev/null                          100%[==============================================================>] 100.00M  11.6MB/s    in 8.7s    
2023-05-10 21:00:12 URL:http://139.162.130.8/100MB-frankfurt.bin [104857600/104857600] -> "/dev/null" [1]
/dev/null                          100%[==============================================================>] 100.00M  11.4MB/s    in 8.7s    
2023-05-10 21:00:21 URL:http://139.162.130.8/100MB-frankfurt.bin [104857600/104857600] -> "/dev/null" [1]

Interestingly, this specific speed test gives fast results, despite all my apps working very badly.
The following, for example, is the output of the `speedtest` command:

Retrieving speedtest.net configuration...
Testing from T-Mobile Netherlands (87.208.94.105)...
Retrieving speedtest.net server list...
Selecting best server based on ping...
Hosted by Telekabel (Skopje) [1706.76 km]: 1800000.0 ms
Testing download speed................................................................................
Download: 0.00 Mbit/s
Testing upload speed......................................................................................................
Upload: 0.00 Mbit/s

I've noticed early that it seems to be an issue with FINDING servers.
Youtube video's load perfectly once the website is loaded, discord calls continue to go perfectly once I have connected successfully once and games continue to play perfectly once connected to a game after it starts to slow down randomly somewhere after boot.
I know I am being a bit vague there, but I wouldn't really know how to benchmark such things.

seth · 2023-05-10 20:23:09

I've noticed early that it seems to be an issue with FINDING servers.

I suspected that inbetween (and therefore had you test against the linode IP)

resolvectl status
cat /etc/resolv.conf
dig google.com # bind package

Eysse · 2023-05-10 20:34:43

Ah okay.
`resolvectl status` gave:

Failed to get global data: Unit dbus-org.freedesktop.resolve1.service not found.

`cat /etc/resolv.conf` gave:

# Generated by NetworkManager
search home
nameserver 192.168.1.1

`dig google.com # bind package` gave:

; <<>> DiG 9.18.14 <<>> google.com
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 32754
;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 1

;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 4096
; COOKIE: 3f1271f0f297a767ed161691645bff2c89ed30327af27471 (good)
;; QUESTION SECTION:
;google.com.			IN	A

;; ANSWER SECTION:
google.com.		292	IN	A	172.217.23.206

;; Query time: 5 msec
;; SERVER: 192.168.1.1#53(192.168.1.1) (UDP)
;; WHEN: Wed May 10 22:31:43 CEST 2023
;; MSG SIZE  rcvd: 83

seth · 2023-05-10 20:37:52

You're not using resolved, your router acts as your DNS server (and is likely a hub for your ISPs DNS, caching or maybe not)
The resopnse time for google.com is very good, but that might be a one-off

Now let's try cloudflare:
https://wiki.archlinux.org/title/Networ … NS_servers
Use 1.1.1.1 (8.8.8.8 is google) and see whether that has impact on your WAN performance.

Eysse · 2023-05-10 21:03:29

I tried to make make my /etc/NetworkManager/conf.d/dns-servers.conf:

[global-dns-domain-*]
servers=::1,127.0.0.1,1.1.1.1

I restarted NetworkManager with:

systemctl restart NetworkManager

I then rebooted, and it has been working like a charm since. I don't know how soon that will change, though. I will keep your updated.

seth · 2023-05-10 21:06:45

As long as there's no local dns server (like dnsmasq or resolved) you can skip "::1,127.0.0.1"
Check your router config on which DNS server it uses as source (and whether you can change that) - the other systems in the LAN might use local caches, but they'd still be impacted by a slow global DNS.
So if the problem isn't w/ the router but the configured (ISP?) DNS, altering the DNS in the router config might provide wider benefits.

Arch Linux

#26 2023-05-08 20:47:11

Re: Internet acting really slow on desktop

#27 2023-05-09 10:25:10

Re: Internet acting really slow on desktop

#28 2023-05-09 12:44:57

Re: Internet acting really slow on desktop

#29 2023-05-09 14:16:41

Re: Internet acting really slow on desktop

#30 2023-05-09 14:23:19

Re: Internet acting really slow on desktop

#31 2023-05-09 14:42:15

Re: Internet acting really slow on desktop

#32 2023-05-09 14:43:49

Re: Internet acting really slow on desktop

#33 2023-05-10 19:06:24

Re: Internet acting really slow on desktop

#34 2023-05-10 20:23:09

Re: Internet acting really slow on desktop

#35 2023-05-10 20:34:43

Re: Internet acting really slow on desktop

#36 2023-05-10 20:37:52

Re: Internet acting really slow on desktop

#37 2023-05-10 21:03:29

Re: Internet acting really slow on desktop

#38 2023-05-10 21:06:45

Re: Internet acting really slow on desktop

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