Questions tagged [slow-connection]

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Squid 4.4 Access Log-- HTTPS Connection Log Too Long! How to explain 100 million milliseconds

https through Squid 4.4 connect Azure. Access.log--elapsed time Too Long! How to explain 100 million milliseconds? enter image description here
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4 answers
107 views

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 ...
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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 ...
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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 ...
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Ubuntu 16.04 network almost comes to a halt after a few weeks

I have an Ubuntu 16.04 server that acts as Jenkins node and also runs docker with several images/containers. The server works well for weeks, but then network transfer gets extremely slow. For example ...
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1 answer
828 views

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 answer
123 views

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 ...
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1 vote
0 answers
35 views

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 votes
2 answers
1k views

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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0 answers
18 views

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 vote
1 answer
2k views

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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1 answer
239 views

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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58 views

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 ...
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0 votes
1 answer
391 views

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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109 views

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 ...
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245 views

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 ...
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2 votes
2 answers
4k views

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 answer
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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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0 answers
223 views

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 answer
350 views

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 votes
1 answer
403 views

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 answer
939 views

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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1 vote
1 answer
320 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 ...
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1 answer
1k views

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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1 vote
0 answers
45 views

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 answer
889 views

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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9 votes
2 answers
13k views

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 ...
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1 vote
0 answers
1k views

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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0 answers
646 views

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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0 votes
1 answer
167 views

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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1 vote
1 answer
627 views

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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0 answers
248 views

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....
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0 votes
1 answer
500 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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0 votes
1 answer
37 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 ...
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2 votes
1 answer
78 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, ...
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0 votes
1 answer
1k views

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 ...
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0 answers
1k views

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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2 votes
0 answers
1k views

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 answer
3k views

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, ...
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-1 votes
1 answer
255 views

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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0 votes
2 answers
141 views

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 ...
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0 answers
333 views

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 ...
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1 answer
120 views

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 ...
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0 votes
3 answers
296 views

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 ...
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0 votes
2 answers
923 views

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" ...
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0 answers
185 views

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 ...
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0 votes
0 answers
1k views

pfsense inter vlan slow speed

In our company we use pfsesne 2.3 as a router. Problem is with inter-vlan transfer, which is very slow about 150kbit/s in both ways. Its very strange , network is 1GB , transfers inside vlan's are god ...
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1 vote
1 answer
8k views

Connecting to MySQL is taking a long time

Here is a normal client side sending an AJAX request to the server, without using any libraries. About The Database: There is only 1 table in the DB having 2 columns and 2 rows. The Storage Engine ...
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0 votes
1 answer
51 views

Active Directory clients performing slowly after HDD upgrade

I have a Windows 2008 R2 AD server operating on my network, it recently ran out of space and I upgraded to 2TB SATA drives instead of the 300GB SAS drives it came with, I configured my 4 drives in ...
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1 vote
1 answer
311 views

Slow shared NAS storage for VM cluster

I have a problem with a very slow virtual machines. I have two HP DL380 G6 servers in the cluster that are connected to the Synology NAS 2416+. Everything is connected via the HP 1620 Switch. On the ...
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