Questions tagged [slow-connection]
The slow-connection tag has no usage guidance.
145
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Nginx as proxy and very slow client weird issue
We have web api with multiple endpoints behind nginx (1.18.0 on Ubuntu 20) proxy. Everything works fine but one scenario. When user whith our company's Android app tries to upload attchment using ...
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43
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Apache sometimes hangs while responding to requests
I have an Apache web server working in windows environment. It is working smoothly, but sometimes even when on low load, is fails to serve the said requests but quickly loads the page when user ...
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69
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sshfs slow from one machine but not from another
Situation
I have two web servers that connect to a file repository over sshfs:
/usr/bin/sshfs -f -o reconnect -o follow_symlinks -o allow_other \
repo@files3:/var/repo /var/repo
On one web server ...
- 193
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35
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Disk access or VM slowdown, how to monitor
We have a dell host running several VMs that are all located on a dell power vault. Users have complained of intermittent slowdowns (like a long time to ls a folder, or taking longer to respond once ...
- 129
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1
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1k
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Slow SSH connection establishment with PuTTY but not with OpenSSH
I'm having an a slow connection establishement issue with PuTTY :
> time.exe plink.exe -no-antispoof [email protected] exit ...
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322
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Slow ssh connection establishement in the same LAN
Hi, connecting to some SSH Linux servers on the same LAN takes about 10 seconds :
me@PC-A $ time ssh X.Y.Z.T :
Warning: Permanently added 'X.Y.Z.T' (RSA) to the list of known hosts.
real 0m10.168s
...
- 369
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4
answers
1k
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Why is ping time much higher using wifi than Ethernet connection?
I have struggled with API of https://api.materialsproject.org recently. Because it is so slow and unstable when fetching data. I thought it was just the problem of this site. However, I found it is ...
- 121
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87
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Different traceroute response times for same path
When troubleshooting for slow Internet speed on one computer, I am having systematic slower response times between two computers when running tacert, for any domain.They are both connected to the same ...
- 101
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1
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551
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kvm / proxmox 5 - virtio_net slow network 5Mbit, sometimes 900Mbit in opposite or both direction
Environment:
several PROXMOX 5 (KVM) servers (kernel: 4.15.18-30-pve)
VMs running Debian 9, 10 and 11 (vitrio /qemu-guest-agent current version of the respective Debian version)
network cards ...
- 11
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1
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9k
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TCP DUP ACK/Out-of-Order/Previous segment not captured/Retransmission flooded on wireshark logs
Due to slow network, I installed wireshark on the device(laptop) to find this
This is a log of the device using internet(Downloading a file),as you can see at the right end of the screenshot, the ...
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1
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624
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SQL Developer queries are very slow if I am not connected as sys
I want to run my PL/SQL Queries on SQL Developer and created a new user connection. But if I run:
set serveroutput on size unlimited;
begin
dbms_output.put_line('Hello Oracle.');
end;
/
clear ...
1
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0
answers
99
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Apache server slow responses on AWS instance (Linux 2)
I have deployed a LAMP web app into two separate AWS instances (labeled prod and test). Both are t2.micro, but prod is the older Linux image and test is the new Linux 2 image. Using the chrome browser ...
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2
answers
3k
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Wireguard slow but only for windows upload
We have the problem that the connection from multiple client networks via Wireguard Tunnel to a Samba share on a server is slow, but weirdly it only affects Windows 10 and only uploads.
A Linux Host ...
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18
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Suddenly milions of visitors to EC2 instance run wordpress multisite. Very slow, now what? [duplicate]
I think the title says it all...
My dream has come true, now what? EC2 was something 2 cores maybe 4 gbs of ram... I use S3 bucket as the storage, compressed the images in Photoshop prior to the ...
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1
answer
4k
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Is it possible to force Windows 10 to use higher TCP window scale?
I have two Windows 10 machines (bld 2004) I am trying to send data to between two sites. The sites average about 50ms RTT with no packet loss. I am having an issue where the max transfer rate I can ...
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337
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After migrated from AWS to Azure, API response became very slow
Our mobile APIs were hosted in AWS EC2 instance and it was working very fast, say 300 ms. Recently we migrated to Azure VM and after that, all the API responses are very slow, say 2 to 8 secs.
The ...
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59
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Delays on various parts of http requests - help diagnosing
At our school we've been having some weird network issues and I'd need some help pointing me into the right direction to start diagnosing them.
The main symptom we're having is that browsing the web ...
- 101
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1
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484
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Apache - Loading is very slow after inactivity. Most states of connections are in K - KeepAlive
I enabled the apache status module, and saw that most of the connections on the apache scoreboard are showing a "K" value.
On my server, when I enable KeepAlive, during inactivity it takes a ...
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215
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Slow Application with User Accounts from other Domain - Active Directory Domain Trust Issue?
I have a strange issue and hope someone can help me finding the cause.
Environment:
2 companies (let's say Company A and Company B) with seperate IT-infrastructures.
Each one has its own network, own ...
- 49
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383
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Nginx Reverse Proxy Slows Down Website
I'm new to working with nginx but I set up a reverse proxy on a new server that I have and it is definitely slowing down my website and how fast videos and images load.
Maybe somebody here will know ...
2
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2
answers
6k
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Slow network speed on ESXi hosts
I have been dealing with this problem for about half a year (had the luxury of time) and hadn't managed to crack it, so I finally resigned and came over here to ask for help from others not just ...
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-1
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1
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254
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Slow domain user logon after promotion of ADC to DC
I had DC and ADC server of Windows 2016 R2 in a domain environment. The DC crashed and I promoted ADC to DC and shifted all five FSMO roles to new DC.
After the crashed DC was removed from the ...
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319
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Moving files to a mapped drive is far slower than direct network share
There is one Windows 10 Pro (1909) Client in our company network that is experiencing an odd behavior.
Moving files to a mapped drive brings up to 40Mbs and is therefor much slower in comparison to ...
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1
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985
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Website suddenly loads VERY slow with SSL
I am using WordPress.
I've been using the free SSL from Hostgator from Let's encrypt. A few days ago my website started to load very very slow which results in a significant decrease in website ...
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1
answer
640
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Internet connection slow in linux [closed]
I have a problem with my new internet connection. This is a symmetric 500Mbs connection but i only get 50M in my linux computer. In windows I get 500Mb for up and down with other computer.
I know ...
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1
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1k
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how to check the IOPS when I have multiple disks attached to an Azure VM
I have considered Azure Standard_E16s_V3 vm and attached two premium disks (p30 , 1024 GB & 5000 IOPS).
How can I calculate the average IOPS considering both disks. This is to check the possible ...
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vote
1
answer
392
views
FreeNAS + LAGG Slow Transfer?
I built a new file server that should be way overbuilt for its purpose. It has 2 Intel(R) Xeon(R) CPU E5-2660 v3, with 128GB of ram and it is running LCAP through an Intel X540T2 network card to a ...
- 121
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1
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1k
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Node JS on Windows : Becomes slow when OS update is processing
I currently have a 4-core windows server. On this server, I installed a nodejs Server (API rest).
It works perfectly without latency.
However when I start a windows update for the server, nodejs ...
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0
answers
59
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NFS mount subsequent reads slower than after mounting
Let me explain the scenario first. I know it may sound ridiculous to have this setup, but once I explain what I'm seen if someone who knows more can explain why it is occurring, I would really ...
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1
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1k
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CentOS 7 SMB Client Slows Down Over Time
I have a CentOS 7 VM running on VMware that is used for archiving data from various servers, the destination is a FreeNAS MiniXL. Some of this is done over ssh, but others are sent using SMB. In ...
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2
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16k
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How to Bond Two (Multiple) Internet Connections for Increased Speed and Failover
We are located in a rural area with two slow ADSL connections (3.5/0.5 Mbps) and wanted to improve connection speed and reliability by somehow "combining" them. The following describes our solution ...
- 396
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1k
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Fedora 30: extreme inconsistency on connection speed
I upgraded from Fedora 29 to 30.
I'm facing a very annoying network issue on Fedora 30: extreme inconsistency on connection speed!
My internet connection is relatively fast: I can download files ...
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720
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Ubuntu 16.04 VPS dropping massive amount of RX Packets
Having networking issues with a Ubuntu 16.04 VPS, causing extremely slow speeds (we're talking about 100kbps). Running ifconfig is showing over a million dropped RX packets from eth0 (no errors) and I ...
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1
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563
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Why does Amazon recommends reading 'all data' as soon as possible during S3 download?
While reading up official documentation on Amazon S3 Java SDK, I found an interesting note:
Your network connection remains open until you read all of the data or close the input stream. We ...
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759
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How can I determine why db access appears to be slow with one db server but not another using the same site?
We have a setup with two web servers and one DB server in both the UK and Australia. These servers are with Rackspace and the webservers connect to the db servers via private IP in both circumstances....
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323
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Server too slow due to DNS resolution issue
I have installed LAMP on Ubuntu 14.04.5 LTS on Digital Ocean Server.
The issue I am facing from last two weeks is:
The site becomes too slow(or say does not load for 5 minutes) at irregular intervals....
- 101
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1
answer
714
views
Set of errors when running a docker container
I have been asked to make a couple tweaks to a legacy PHP project that runs inside a docker container. In order to make those tweaks, I am trying to get a local working copy of the app and associated ...
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1
answer
50
views
Slow SQL Queries over local net
Slow Queries for SQL over 1Gb link between servers using just SSMS
Server Configs:
Main SQL Node:
32GB Ram
16 cores
Sage Evolution Server:
16 cores
16GB ram
The config of the servers is that they ...
2
votes
1
answer
129
views
Is there a way to measure clients connection speed?
Suppose you run a website and you are getting reports from your customers in a particular office that your website has suddenly become very slow. But it's perfectly fast everywhere you test it from, ...
- 131
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1
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1k
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Linux servers sometimes doesn't answer TCP connections or very delayed
I have Linux server (Ubuntu 16.04) where every serverce seems to be fine, except that it sometimes answers TCP connection very slowly (eg. 10 -20 sec) or not at all.
The server is not under load and ...
- 395
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1k
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Samba low performance
I have a small professional network to manage: 1 server and 2 clients under Windows 7 pro.
On the 2 clients is installed a software that fetch datas from a proprietary database on the server through ...
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1k
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Slow windows DNS server
I have a microsoft DNS server for a local domain, running Windows server 2016STD. This computer is also a domain controller. It's configured to forward to fast public DNS servers.
From any computer ...
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1
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3k
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TTFB taking 2 mins on some pages
We have a server that has recently gotten into an issue where the TTFB (Time To First Byte) takes 2.0 minutes to pass on some subpages of a website. Some other websites, hosted on the same server, ...
-1
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1
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269
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Slow mail server in looking up host name [closed]
Hello my mail server is very slow to accept SMTP connections.
I found a tutorial to make a stop in my Exim4 and run the command below to see where it takes.
exim -bd -d -oX 587
Follow the exit, ...
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2
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146
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Server is currently under massive DDoS
Over the past few days, been having a number of problems that I can only describe as a massive DDoS attack one a CENTOS VPS server that is only hosting one website.
The website is really slow but not ...
- 101
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473
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Web page loads slow from certain IP address
Good morning,
We're having a bizarre issue: from certain IP address (specifically our main IP address), our web pages load pretty slow. It's only one IP address which we're having this incident. If ...
- 101
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1
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124
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What could be the reason for network issues in my case?
Please, just assume that the case below is how it is and I must solve it with what I have. Or at least understand what is wrong.
Two identical computers connected between them with 10G cable. Both ...
- 163
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3
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338
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Slow network connection
I'm working in a small company, up to 30 Internet connected devices. Since a few weeks we observe that our Internet connection is much slower than earlier. Browsing pages, downloading files is ~50-300 ...
- 105
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2
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987
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Internet is very slow because of many unknown connections from and to some amazonaws EC2 servers, Dropbox?
We are currently having issues with the internet speed at work.
We asked for a global report to our ISP in order to understand what was happening, and in their report (in the "conversation report" ...
- 121
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203
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Draytek Vigor 2830n WAN connection dropouts
For the last two weeks we have been experiencing terrible connections speeds. When running a speed test it normally starts off OK at around 15Mbps but then drops to 0.7Mbs or below making working ...
- 115