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Questions tagged [slow-connection]

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0
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0answers
40 views

Slow connections affect how Nodejs app save data in Mongodb database?

I developed a Nodejs app for my organization. This app consists in three different forms to capture data based on three different topics. We are using a local mongodb database to store data. This ...
0
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0answers
86 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 ...
0
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1answer
34 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 ...
1
vote
1answer
90 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....
0
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0answers
83 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....
0
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1answer
205 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 ...
0
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1answer
32 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 ...
0
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0answers
168 views

nginx send timeout is not working

We have installed nginx (1.12.2) server in CentOS as a reverse proxy for a Tomcat server. When we tested the nginx server for slow HTTP POST attack, we found that the nginx server keeps POST requests ...
2
votes
1answer
21 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, ...
0
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0answers
171 views

Why is my speed slow on GigE to a new server?

I've just installed a 2010 Dell server with Windows Server 2016. I need to move 2TB of data to it from my laptop. I've connected both machines together with a CAT5e cable, and Windows shows a 1.0Gbps ...
0
votes
1answer
470 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 ...
0
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0answers
692 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 ...
3
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0answers
546 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 ...
0
votes
1answer
1k 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, ...
-1
votes
1answer
165 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, ...
0
votes
2answers
130 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 ...
0
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0answers
79 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 ...
0
votes
1answer
116 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 ...
-1
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0answers
173 views

Chrome DNS Issues Under Windows 10

We run a Windows 2012 server which is set up as a domain controller, DHCP and file server. Nothing unusual. Your typical basic setup. Generally all computers on my network are Windows 7 machines and ...
0
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3answers
75 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 ...
0
votes
2answers
657 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" ...
0
votes
0answers
134 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 ...
0
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0answers
896 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 ...
1
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1answer
4k 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 ...
0
votes
1answer
48 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 ...
1
vote
1answer
178 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 ...
1
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0answers
684 views

Slow gigabit speeds with Ookla speedtest software

We have 2 speedtest servers (RHEL 6.7) sitting on 10GB links with a 10GB pipe between the two. The servers are separated geographically by about 256 miles but traceroutes look very good, with 4 hops ...
2
votes
0answers
64 views

Slow Login on Network Windows 7

I am trying to troubleshoot an issue where it takes a very long time (4-5 minutes) for users to log on to their computers on a network, and after catching this timeline with the Windows Performance ...
0
votes
1answer
254 views

CentOs server intermittent long response time. [atop screenshot included]

I am in charge of a website that has about 150 unique users a day. The website hosts forms and gauge data, providing calculations and alerts. It runs well, but for some reason there are intermittent ...
4
votes
1answer
9k views

Why is a TLS handshake taking *forever* (20 seconds) on a VPS?

I have a server that generally works fine, but gets stuck for 20 seconds when trying to connect with SSL (either SSH or HTTPS display the same pattern.) I tried various connections without SSL, such ...
0
votes
1answer
160 views

PowerConnect 2216 slow with 2 ports connected to router

I have a Dell PowerConnect 2216 switch. When I plug one cable connected to LAN port #1 of my router it works fine: _____________________________________________ | Router | PC | PC | PC | PC | PC | ...
-1
votes
1answer
330 views

Slow loading WordPress site because of pingback

I have a site running on WordPress that has a very high loading time. When I check tools.pingdom.com this is the result: I've updated all plugins and WordPress, blocked xmlrpc.php and still the site ...
9
votes
2answers
6k views

Bind DNS Recursion Slow

We have just setup a recursive DNS server using the latest stable release of Bind 9.10 We are finding that recursive DNS lookups are quite slow. Anywhere from 1 - 3 seconds. Once the lookup is in ...
1
vote
1answer
234 views

nginx no speed limitation for a connection

I have a server with nginx installed on it to serve some files for downloading. I also didn't change default configuration of nginx. Problem is that when I try to download from this server it seems ...
1
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0answers
683 views

test connection status and speed between azure vm and client

We have some VMs up and running, but we are seeing slow performance on some of them. We are unsure if it is a VM problem (Azure overloaded), an intermediate network problem or a problem on the client ...
2
votes
0answers
607 views

Asset (js, css, images) loading is extremly slow on apache after update

I am running an Ubuntu 14.04 based linux web server and did an update by "apt-get upgrade". Everything worked fine before this update. After this update the time to load assets like JS- or CSS-files ...
0
votes
2answers
2k views

Apache server hangs after a few hours, needs restart

I have a VPS, with 2 GBytes of RAM on an Ubuntu 14 machine. After a while I decided to upgrade my packages in the machine, including installing the latest version of apache2 (2.4.7). However, after ...
-1
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1answer
780 views

Debugging slow network [closed]

I've been tasked with debugging why my company's network connection is running slow. Having no previous experience in this field I have absolutely no clue where to begin or what tools to use. The ...
2
votes
1answer
3k views

bacula backups very slow with TCP socket in 'unkn-4' state

Several bacula-fd clients are backing up to one bacula SD (using 2G disk files on massive RAID, not tape), usually 2-3 of them concurrently. It works fine, except when 2 bigger clients (about 400-...
1
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0answers
373 views

TCP Window Size Allocation, TCP Window Zero Errors and Network Latency

My mind is about to explode as everyone is always blaming the network guys for disconnections and slowness in the networks, but Solarwinds Reports that all utilization in the network devices and links ...
0
votes
1answer
2k views

Server taking too much time to first load [closed]

I have a VPS server with CentOS 6 purchased from MochaHost. It has WHM/cPanel installed and I have full root access. The websites that are on this server load very slowly but when I use pingdom tools ...
1
vote
2answers
1k views

centos TCP/IP connection very slow

I have a VSP (centos6.1 64bit) with 4gb ram. It always runs well, but in recent few days, the server become slowly. open a small css file need 22 seconds(2kb). tested in home/office/phone with (IE,...
2
votes
1answer
7k views

Connection to SQL Server 2008 R2 Database Server is SLOW

The database server is a VM running SQL Server 2008 R2 on top of Windows Server 2012, 24GB RAM allocated and 2TB of disk space. Overall, the database connections are very slow and one thing that ...
5
votes
1answer
13k views

ESXi 5.5, slow network speed when writing to guests

This is an issue that has been bugging me for a lot time with ESXi. I had the issue with my old Dell server (ESXi 5.0 and 5.5) and even with my new Dell T20 (ESXi 5.5). For the current issue at hand I ...
0
votes
1answer
850 views

High disk overloads slows the server

My server get very slow as soon at my gstat output shows high amount of busy%. Look at the gstat results: Here is the top -m io -o total and the gstat commands running at the same time: How can I ...
1
vote
1answer
3k views

Cisco IPSEC VPN Slow Speeds

We have a site to site IPSEC VPN, both endpoints are Cisco PIX 515e's. The links at both end are 100mb, however speeds over the VPN (logged using jperf) are at most 4mb. Obviously this represents a ...
-2
votes
3answers
332 views

DNS slows down other stuff

I set up a local DNS server (because the router of our ISP doesn't support local DNS) and configured it to resolve to static IP addresses and forward other requests to the ISPs router. So the DNS ...
0
votes
1answer
527 views

very slow outbound HTTP on a webserver

I've got a web server running Windows Server 2008 R2, SP1, and IIS7. It has been running fine for some time, but recently begun having difficulty with outbound HTTP. Attempts to hit web pages from ...
1
vote
1answer
10k views

Performance - Windows Server 2008 R2 vs Windows Server 2012 [closed]

we have two different server that runs the same server application. They have to handle lot of connections (2000+) in a custom protocol, our users have our program to connect to our servers. Machine ...
0
votes
1answer
294 views

Accessing VM over VPN is very slow

We have a single physical server running XenServer 6.2 which hosts an SBS 2008 VM and 2 CentOS 6 x64 VMs. External users connect to the local network via VPN on the SBS VM. They can access everything,...