I am facing an unknown problem in my laptop. i AM Using a router. From same router I connect my another PC and mobiles using same Wi-Fi. But my laptop not found internet. I have to use Manual DNS 4.2.2.1 . If I use this DNS then I can access internet. But all other my device and PC connect internet without problem. how to solve my Laptop problem. I am am using windows 8.1
Did you try to connect by Ethernet the notebook to the router?, to discard an OS problem.
The other option that you can try is deleting the WiFi config of that network.
Check if you have dhcp activated and check in your notebook if the ip is checked in automatic. Could happen that if you have manual ip, your dhcp is not in the range of your ip
DNS Doesn't connect you to the internet.
DNS Explained
It's possible you disabled DHCP in your router :P
You won't get a IP if that's the case
Please go to CMD.exe and type
ipconfig /all
Please post the following information:
DHCP Enabled
IPv4 Address
Subnet Mask
Default Gateway
DHCP Server
DNS Servers
Easy fix: Press the reset button on your router
If Only your Laptop faces this problem disable STATIC IP
Explained
Right click your network adapter
Choose "Change adapter settings"
Richt click your connected network adapter
Select "Properties"
Click on "Internet Protocol Version 4 (TCP/IPv4)
Choose Properties
Select "Obtain an IP address automatically"
Select "Obtain DNS Server address automatically"
Click "OK" then "Close"
Done.
Related
I am owning a Windows PC. I have written a Web application that runs fine. But the problem is my PC's IP changes periodically. I want that application to be accessible in the network (from other pc's) without changing client side code . My client side code is in angular js.
The web server of your web application cannot bind to the correct IP if it doesn't know it in advance.
You can make your IP address static by following these steps:
In Windows, go to the Network and Sharing center
In the left pane, choose "Change adapter settings"
Right click your ethernet or wifi connection (the one connected to your router) and choose Properties
Double click Internet Protocol Version 4 (TCP / IPv4)
As an IP address, choose the one your computer already has (or try another IP address starting with the first same 3 numbers, i.e. xxx.xxx.xxx.yyy)
The default gateway is the IP address of your router
The subnet mask is typically 255.255.255.0
For the DNS server choose Google's 8.8.8.8 and/or your router's IP address
You have several choices depending upon your configuration.
If this is the public dynamic IP you get from your ISP, you can go to your ISP (whoever you get internet service from) and upgrade your service to a static IP address so it won't change.
If this is the public dynamic IP you get from your ISP, you can use a dynamic DNS service to attach a hostname to your IP address and then use that hostname to access the server. The dynamic DDNS app you put on your server will keep the DNS updated whenever your dynamic IP address changes.
If this is just a local IP address on your LAN (a 192.x.x.x or 10.x.x.x address), then you can pick an IP address that your router supports, but is above the range being used for DHCP and set that computer to use that IP address and not DHCP. In Windows, you can go to the networking configuration and choose the IP address instead of using DHCP. Then, the IP address won't ever change. It is important that you pick an address outside the range used for DHCP to avoid any conflicts. On my own LAN where the router is allocating addresses like 192.168.0.x, I manually assign addresses like 192.168.1.250.
This is something that your router handles through a protocol known as DHCP. Basically, the answer is to keep your IP from changing.
Many routers allow you to reserve an IP for certain MAC addresses. I would recommend that you access your router over your local network and work with the GUI it provides to try to configure this... if you're successful, then your IP will no longer change, and problem solved :-) If it's not intuitive, then of course refer to the documentation for your router.
I am not finding this question in SF history, which was a surprise, so I'll go ahead and ask it.
I am working on an IoT Raspberry Pi project with Windows 10 and need to connect it to the internet via an Ethernet/USB adapter. The adapter itself is made by Belkin. Using this, I can see an ip of 169.stuff get generated for my Pi, which is a private ip. I can deploy code to that from my connected box, however other devices are not able to reach it, and it is not able to make connections out to any servers.
I'm wondering if anybody knows how to bridge the connection.
I am attempting to use the new Azure IoT Hub and the SDK with this in case that makes any differences as that is not a simple rest interface and I believe is some form of socket connection.
Additional Notes:
I have installed a DCHP Server and the Pi gets the ip address: 192.168.0.3 assigned to it. Unfortunately the Pi still can not ping external sites, such as google.com
Latest Discoveries:
I am on a corporate box, which has internet sharing disabled by the system admin. Following these instructions: http://zizhujy.com/blog/post/2013/07/07/Solved-Internet-Connection-Sharing-has-been-disabled-by-the-Network-Administrator.aspx Fails. It shuts down all connectivity to my box and I cannot ping anything or reach the internet or anything.
Thanks,
~David
The 169 address means it isn’t getting a DHCP address assigned.
Since you don't have a router for the Ethernet, you can use Internet Connection Sharing, however we will need to run the following commands against the Pi to set a static IP, gateway, and dns server, since internet connection sharing botches this up a bit at times:
Set-Item WSMan:\localhost\Client\TrustedHosts -Value 192.168.137.2
Enter-PSSession -ComputerName 192.168.137.2 -Credential 192.168.137.2\Administrator
set-executionpolicy unrestricted
netsh int ip set address "Ethernet" static 192.168.137.2 255.255.255.0 192.168.137.1
netsh int ip set dns "Ethernet" static 8.8.8.8
netsh interface ipv4 show config
set-executionpolicy remotesigned
You may need to reboot the Pi at this point then test pinging 8.8.8.8 and google.com to make sure resolution is working. You should be all set!
One other thing, if you have a group policy on the machine that is restricting Internet Connection Sharing then take a look at this article to fix the issue. Note if your organization is constantly sending down the policy then you may have to re-enable Internet Connection Sharing often which is aggravating but at least it will work.
http://zizhujy.com/blog/post/2013/07/07/Solved-Internet-Connection-Sharing-has-been-disabled-by-the-Network-Administrator.aspx
I do this by creating a DHCP server on my laptop and connecting the Pi directly to it. I followed these instructions to get it working:
Download DHCP Server for Windows. It is a 100kB download.
Go to the IPv4 properties page of the Ethernet adapter and set a fixed IP address, say 192.168.2.1
Run the DHCP Server Wizard (downloaded above)
Select the Ethernet adapter from the list shown
Save the configuration file and start up the DHCP Server
Click the 'Continue as tray app' button in the server control panel.
Boot up the Raspberry Pi
A popup notification shows the IP address assigned by the DHCP server to the Raspberry Pi.
Use a SSH client, like PuTTy, to connect to the IP address shown
Hope this works!
I want to create an IIS server on my PC. I've created a wifi hotspot through netsh wlan set hostednetwork ... , and a new wifi hotspot appeared (wifi2, in which my pc was 192.168.137.1).
So I shared the connection of wifi1 (the real NIC, with ip 192.168.0.104) and I enabled sharing of HTTP service (because of the IIS server). Obviously IIS is running. wifi2 is set as a domestic net.
So, I've connected my smartphone to wifi2, and typed 192.168.137.1, the IP of my pc in wifi2, in wich it should be running the IIS server. But it respond with a timeout error. So I've typed 192.168.0.104 , the IP of wifi1, and I though my smartphone cannot reach it, because my phone is connected to wifi2, but it show the IIS home page. This is strange, but the problem is here: if I disconnect my PC from wifi1 (so there isn't an internet connection, but only a local wifi lan), from my smartphone I can't visualize anything, both 192.168.137.1 and 192.168.0.104 !
why I need an internet connection to show the IIS page?
How can I fix this problem?
I configured IIS in my windows 7, and when I enter 'http://localhost' in address bar; I can see my web site. Now, when I want to see my web site by entering internet IP address in address bar, I connect to the ADSL modem (it opens the page which we use to configure the modem!).
It seems that because the modem connects to the internet an gets the IP, not the PC, so the internet IP connects me to the modem. So, I think, I must change some settings of my modem.
I use a D-Link modem.
How can I fix that?
Thanks in advance
Unless you have a "server" or "business" configuration from your ISP which provides you a full subnet of public IP addresses, you've been allocated a single external IP address and the router attached to it does Network Address Translation for all the devices connected behind it. You can confirm this by using ipconfig or Windows Settings (ifconfig on Unix-like machines) to get your IP address. If using NAT, it will start with "10.", "172.16." through "172.31.", or "192.168.". These are "private" addresses and cannot be reached through the public internet.
For someone on the public internet to reach your computer, you need to set up Port Forwarding that redirects incoming traffic on your public, external IP to that port to a machine on the private network. The configuration pages for your router will have this configuration somewhere.
Note that if your router's configuration page is running on port #80 and you really want outside viewers to connect to you without giving an explicit port number, you will probably need to turn off or restrict modem configuration, move it to a another port, or go SSL only (port 443) so as to not cause a conflict with the port you're forwarding.
D-Link is a very common brand of router and there are pages dedicated to configuring port forwarding on them.
Also, just to complicate things, you almost certainly haven't been given a Static IP Address (they are usually quite expensive) which means that your external IP address will change from time to time (perhaps yearly, perhaps daily) making it difficult to tell others how to connect to your page. Your router configuration likely has support for Dynamic DNS (some free, some paid) where the router automatically updates the DNS entry whenever your public IP address changes.
I have my beaglebone black running stock Angstrom Linux and is connected to ethernet at my home. I can login from any PC connected to my home network using SSH. I would like to know how can I login from another network, say I am at my office and I am connected to internet. I want to login into my beaglebone black which is connected to internet at my Home. How can I do this?
Thanks in Advance
You have a public IP address, that is given to you by your Internet operator. This public IP however will be different than the IP of your Beagle in your local network.
To login to your Beagle from the Internet, you need to connect to your public IP address, and need to add port forwarding to your router, so that port 22, which is the socket port that is used by ssh, is forwarded from your public IP to your local IP.
So, you need to login to your router management console, and go to "port forwarding" options, and select to forward TCP/IP connections to port 22 be forwarded to your Beagle IP. For this to work longer term, you should set static IP address to your Beagle, otherwise if your board stays offline for long time, the DHCP server on your router will probably assign different IP at some point, and the forwarding would need to be setup again.
There is a good guide on the static IP address setting in Beagle/Angstrom here: http://derekmolloy.ie/set-ip-address-to-be-static-on-the-beaglebone-black/
One more thing: Since your operator will also assign different public IP for you from time to time, you might want to have some kind of Dynamic DNS service in use. With this kind of service, you can create your "custom" DNS address (for example user3180454.no-ip.com), that will always point to your Public IP address to which you can create ssh connection (the service will require some method to keep this IP address up to date, you will see instructions on how to do it from the service you use).
Couple services like this:
http://no-ip.com/
http://freedns.afraid.org/
You might also want to try out the Weaved connection service installer for BeagleBone Black. I'm using it to connect:
SSH on port 22
BBB web server on port 80
tightVNC server on port 5901
Shell in a Box on port 4200
Apache web server on port 8080
See:
https://developer.weaved.com/portal/members/betabeagle.php
If you are:
Connecting to from a BeagleBoard via USB Ethernet
from Mac Air running Mavericks & connected to web via Wifi
I found this very helpful:
http://makezine.com/2012/07/16/use-your-mac-laptop-as-a-wireless-proxy-for-raspberry-pi/
In short >> install/run a proxy server (with Squidman) & your life will be easier.
I know this is an old question. But I thought I'd suggest another option. I use TeamViewer (https://www.teamviewer.com) to connect to my work/home computers. You could use something like this to connect to your home computer from the office. Once connected to your home computer, you could then do whatever you need to do on your home network. No port forwarding required.