Questions tagged [connection]

All connections, wired, wireless, internet, intranet, and cable fall under this category. Use this tag if your issue involves establishing, maintaining, adding, or removing connections.

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72
votes
4answers
75k views

Can the telnet or netcat clients communicate over SSL?

I would like to test client connections with IMAP over SSL, HTTPS, and other secure text-based Internet protocols over SSL/TLS, the same way I would using telnet or netcat if they were not tunneled ...
72
votes
3answers
156k views

How can I change the default website connection timeout in Chrome?

I want to change the default timeout in Chrome. In Firefox I can set the value of network.http.connection-timeout in about:config - but how can I do that in Chrome?
68
votes
3answers
635k views

How can I block a program from accessing the Internet? [duplicate]

I really want to know how can I prevent a program to connect to Internet with Windows 7 firewall? I have smart security nod32 business edition installed on my computer. should i do this job with ...
61
votes
6answers
147k views

How do I set the priority of network connections in Ubuntu?

If a Ubuntu 11.04 machine is connected to WiFi and 3G simultaneously, how do I set the priority to let the applications (browser etc.) to use WiFi first? If that's not available, it should use the 3G....
60
votes
12answers
318k views

Windows 10 Remote Desktop Connects with Black Screen then Disconnects

I've been having this issue since I updated (fresh install) to Windows 10 Professional. I used to connect to my computer via RDP through WAN and LAN with no issues. After installing W10 and setting ...
46
votes
12answers
130k views

Generating usage logs that prove my Internet connection is flaky

I need a way to generate reports or logs that prove that my Internet connection is flaky. My Comcast connection is very flaky but if I ask their support to send someone over it will probably work fine ...
45
votes
1answer
20k views

What happens to TCP connections when I remove the ethernet cable?

For a TCP connection, when I remove the cable and reconnect after 30-40 seconds there is no packet loss issues. But when the reconnect time is more than a few minutes all the packets are lost. I know ...
41
votes
6answers
281k views

How can I see all active connections?

My Internet connection has been slow lately, and I think it might be a possible attack. A friend has told me to use Wireshark, but it is a big install, and I do not have the time to learn how to use ...
29
votes
1answer
3k views

Why aren't SD card 'contacts' uniformly placed?

As you can see above, Some contacts seem to be longer than the rest. Also, on the SD card (2nd from top) the last one seems to be thinner and also closer to the seventh pin. Why not just uniformly ...
28
votes
2answers
45k views

SSH is slow to make a connection [duplicate]

I just installed Ubuntu 11.10, and whenever I try to SSH into my servers it's very slow. Before it displays the password prompt, it can take between 40 seconds and 60 seconds. I use: ssh myuser@...
26
votes
3answers
69k views

How can I easily connect and disconnect my bluetooth speakers in windows 8?

I have a bluetooth speaker system in my windows 8.Is there any other way of connecting and disconnecting without re-adding the device with its drivers/going out of range and turning off bluetooth in ...
26
votes
8answers
85k views

What angle is optimal for the antennas on my wireless network card?

I'm sharing a house with some friends and I'm in the bedroom right up in the attic. The router is right down on the ground floor and I get connectivity issues. I've found that if I adjust the two ...
23
votes
2answers
17k views

How can I script a bluetooth device to connect/disconnect?

I have bluetooth headphones which I use to both listen to music from my mobile phone and to listen to videos on my laptop. They cannot be connected to both devices at once (note here), so I have to ...
22
votes
1answer
34k views

Is there a hard limit of 65536 open TCP connections per IP address on linux?

Is there a hard limit of 65536 open TCP connections per IP address on linux? I read somewhere that there was, but someone is asking for confirmation and i just can't find it. I seem to remember it ...
21
votes
4answers
7k views

Why use half duplex at all?

I know what full and half duplex is, but in all respects full duplex has more advantages, so why use half duplex at all, in other words: In full duplex connection , the bandwidth doubles and collision ...
20
votes
4answers
87k views

Can't ping but can access internet just fine?

I'm wondering if anyone has ideas on this one, since it's a first for me. I can access the internet just fine with a browser, but using PING or TRACERT from a command prompt just shows requests ...
19
votes
2answers
51k views

How do I stop my Mac from asking to accept incoming network connections?

I am using Syncthing, which is an application to sync files between two or more computers. I believe Syncthing (on github) needs to be allowed to Accept incoming network connections to work properly. ...
19
votes
4answers
41k views

How to test router-to-PC connection speed?

Is there a way to benchmark how fast my router is connected to my PC, independent of the internet? I've had slower-than-usual internet-based benchmarks, and I'm having a hard time figuring out if it'...
18
votes
6answers
175k views

Open a test TCP connection to a specified IP/Port

I'm looking for a tool that works across windows (xp through 7) that will allow me to open a TCP connection to a specified ip and port. This functionality used to exist in windows xp (netsh diag ...
18
votes
1answer
19k views

How do I keep my bluetooth headphones from connecting to my windows 10 machine when it's connected to my phone?

My laptop (running Win10) repeatedly "steals" the bluetooth connection for my headphones while they're connected to my phone. The only way I've been able to prevent the headphones' connection from ...
17
votes
4answers
33k views

When concurrently connected to wired and wireless ensure Windows 7 uses wired connection

When I am at my desk and my laptop is in its docking station I want to ensure that it uses its wired connection and not my wireless network. I am hoping/guessing that the preference in connection is ...
16
votes
1answer
11k views

Why Windows 7 / PuTTY drop TCP connections even on very brief outages?

I have a small local network that piggybacks on a captive WiFi, and I use ssh on OS X with -oServerAliveInterval=240 and PuTTY 0.62 on Windows 7 Professional for establishing connections to my Linode, ...
15
votes
4answers
69k views

What happens when Gigabit switches are connected over an old CAT5 cable?

If two gigabit switches are connected using an old CAT5 (not CAT5e) cable, will they slow their connection down to 100 Mbit/s?
15
votes
4answers
72k views

How to disconnect a network drive using powershell

I would like to disconnect a network drive (Y:) with powershell. That drive letter is assigned / mapped to a network location. Is there a simple way to do that? I believe "net use XXX /delete" would ...
14
votes
8answers
28k views

Is there a way to determine which service (in svchost.exe) does an outgoing connection?

I'm redoing my firewall configuration with more restrictive policies and I would like to determine the provenance (and/or destination) of some outgoing connections. I have an issue because they come ...
14
votes
3answers
96k views

What is ideal internet speed for remote desktop connection?

My question and situation is similar to Recommended Connection Speed for Remote Desktop question but I need a little more info. I know that lag can be a factor in working on remote desktop. Lets ...
13
votes
8answers
70k views

How to bond two different internet connections [duplicate]

I have two internet connection, each with 4mbps bandwidth. I want to join/merge both of them to get 8mbps speed, both routers have WLAN and LAN capability. How to Double my speed using two routers? ...
13
votes
2answers
51k views

How to determine a network cable's maximum speed?

I have some machines connected in my workplace network using Ethernet cables. I know some types of Ethernet cable can handle speeds up to 5 Gbps but I'm not sure which ones. So I want to determine the ...
13
votes
2answers
6k views

Utility to monitor internet connectivity?

I live in an apartment complex which advertises a "free high-speed internet connection"... but it's really not high-speed at all, and often not even a connection. That is, it's frequently the case ...
11
votes
1answer
8k views

Wide SATA? connector with no break in the middle

I need to connect my hard drive from my Lenovo T470p to my desktop, but it uses this wierd connector. It looks like the standard wide SATA, but there's no break in the middle. What's this called, ...
11
votes
2answers
42k views

Why does restarting a computer solve wifi connectivity issues?

I saw the the question on this site, asking about why restarting a computer can fix things in general, and I figured I might press for additional insight. On occasion I'll be scooting along on the ...
11
votes
4answers
26k views

How do I test my connection to a given site?

Although internet connection is fast enough (8 Mbps, wireless speedtest), I'm having trouble streaming radio from a certain site. Here's the peculiar thing: the stream seems to run smoothly on other ...
10
votes
1answer
21k views

Disconnect VPN Using the Command Line

I make VPN connections using Vista's Connection Manager, and would like to disconnect the VPN connection from the command line so I can create a shortcut command called vpn.disconnect in Promptu ...
10
votes
1answer
91k views

Use PC internet on mobile phone via bluetooth

I want to use my Windows 7 PC's dial up internet with my cell phone (Nokia N73) via Blutooth connection. Can I do that with some program?
10
votes
3answers
31k views

How to stop remote desktop logoff after closing the connection

While I am using remote desktop connection(mstsc.exe), when I close the connection, I get logged off from the remote machine. Is there a way to stop logging off after disconnection ? Client and ...
10
votes
2answers
15k views

Internet appears to function correctly, but cannot access Steam or Battle.net?

I am able to surf the web and my LogMeIn client is not reporting any errors, but I cannot connect to Battle.net or Steam. (I can still visit Battle.net and Steam via my web browser.) I was actually ...
10
votes
1answer
16k views

How to enable Internet connection sharing using the command line in Windows 7 [duplicate]

How can I share my Wireless Internet with an existing local network? I don't want to create new Wireless Network Connection 2 using this command: netsh wlan set hostednetwork mode=MODE ssid=SSID ...
9
votes
3answers
23k views

sign_and_send_pubkey: signing failed: agent refused operation

I have tried every possible piece of command I could lay my hands on. I still get this. I spun a digital ocean droplet with ubuntu 16.04 on it. I followed the tutorial until I had to login in again ...
9
votes
1answer
3k views

unusual networking issue - device online but not pingable

So, here's a curious situation. Forgive me if it's obvious and perhaps I'm just missing it. I have a client device (Surface Pro 4) which as far as I can tell is online. The user can browse the web, ...
9
votes
5answers
56k views

How to connect to an HTTPS WebDAV Folder on Windows 7?

I'm trying to connect to an HTTPS WebDAV folder on Windows 7. I go to a "Computer" Explorer window, right click, and click "Add a Network Location." I follow the prompts and get "The folder you ...
9
votes
2answers
24k views

Disconnect from a network share

How do I really disconnect from a network share in Windows 8.1? I'm familiar with using net use to disconnect from a network share, even if it isn't mapped to a network drive letter: net use \\...
9
votes
3answers
7k views

Restore console session after remote desktop disconnects?

Is it possible (through group policy, etc) to automatically restore the console session to a Windows 8.1 PC after a remote desktop session disconnects? I'm aware that you can run the command "tscon 1 ...
9
votes
3answers
37k views

wi-fi connection drops periodically for a few seconds

I've read the similar question on wireless connections dropping, but no answer seems to apply to my case I have configured the wi-fi lan of my router to broadcast sid and use WPA-PSK. Every few ...
9
votes
5answers
17k views

How to keep refreshing a page until it loads?

I am trying to access a web-service that is currently very popular. Because of that I get a default browser message that says it could not connect. Is there an application, or special browser, or ...
9
votes
2answers
12k views

How to connect to Oracle DB via ODBC

I am attempting to connect to a remote Oracle DB via ODBC. I am totally inexperienced and fail to connect. What I have installed: Oracle 'ODBC Driver for RDB' A program I want to connect from (...
9
votes
4answers
15k views

Why does my wireless router disconnect when I turn on my cellphone's WiFi?

For the last seven months, I have been dealing with Internet problems. However I finally found out why my wireless router has been disconnecting randomly. Every time I enable WiFi on my HTC Android ...
8
votes
3answers
8k views

Why don't p2p connections need open ports?

I mean, if someone is downloading a file from me, doesn't that means that I'm the host and he is connecting to me? Or am I connecting to him? Either way one of us need an open port, no? I don't ...
8
votes
11answers
13k views

I can't open google-related sites

I'm getting timeout errors on google-related sites. If I try to open google.com, gmail.com, etc, it will keep displaying the "waiting reply" on the browser bottom, and the page won't open. If I am ...
8
votes
1answer
15k views

Recommended Connection Speed for Remote Desktop

I will be working remotely from India during my vacation there and am looking to get an internet setup there that will allow me to work from India when needed. However the internet connection speed in ...
8
votes
5answers
33k views

How to fix the slow DNS lookup and long time in "connecting"? win8.1 and chrome

Here is a video about how my requests are queued up in Chrome and how much time it takes. It is amazingly slow: More than 3s just for a DNS lookup Around 20-30 seconds to load a page and also fails ...

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