Wireless connection works, but wired does not/gets yellow exclamation
Ive had this problem for over a month and cant seem to find a solution. ive googled around and tried every fix i could with no success. Ive also tried completely reformatting my hard drive, which also didnt work
Wifi and LAN using different device, if you already doing basic TS for networking even reformat OS,
Did you also try reinstall and update driver, isolate cable issue, ping local host or do clean boot?
http://windows.microsoft.com/en-us/windows/cant-connect-internet#1TC=windows-7
if still not solved means issue from device itself or consider HW issue
Similar Messages
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Connection works but program does not continue in the code ?
Hello,
I have a client, a server and a data class implementing Serializable interface.
Both classes communicate via sockets.
Between the sockets I transfer objects from the type of the data class.
The client and the server are running each in a Thread.
First the server is started then pressing a certain button in the GUI the client is started.
1. Why is the code in the clients Thread never going beyond this code line: System.out.println("test"); ???
2. Why is the file satz.dat not written ?
This is the part code of all 3 classes which is making me trouble:
Client code:
public class ClientThread extends Thread
ClientThread()
public void run()
try
InetAddress ip = InetAddress.getByName("localhost");
Socket socket = new Socket(ip , ServerThread.PORT);
System.out.println("test");
ObjectInputStream incomingObject = new ObjectInputStream(socket.getInputStream());
ObjectOutputStream outgoingObject = new ObjectOutputStream(socket.getOutputStream());
outgoingObject.writeObject(serializeObjekt(meineBuchdaten)); // serialize the object "meineBuchdaten"
incomingObject.close();
outgoingObject.close();
socket.close();
catch (Exception e)
e.printStackTrace();
Method to serialize the string data of the data class called Buchdaten class:
public Object serializeObjekt(Object objekt) throws IOException
ObjectOutputStream oos = new ObjectOutputStream(new BufferedOutputStream(new FileOutputStream("d:/satz.dat")));
oos.writeObject(objekt);
oos.flush();
oos.close();
return oos;
server class:
public class ServerThread extends Thread
public static final int PORT = 8080;
private ServerSocket myServerSocket = null;
private Socket myClientSocket;
private Database myDatabase = new Database();
public ServerThread()
public void run()
try
myServerSocket = new ServerSocket(PORT);
catch (IOException e)
e.printStackTrace();
System.out.println("Started: " + myServerSocket);
try
while(true)
// Warten until the client connects...
myClientSocket = myServerSocket.accept();
System.out.println("Connection done - handshake " + myClientSocket);
ObjectInputStream incomingObject = new ObjectInputStream(myClientSocket.getInputStream());
ObjectOutputStream outgoingObject = new ObjectOutputStream(myClientSocket.getOutputStream());
Buchdaten bd = (Buchdaten) incomingObject.readObject();
System.out.println("This should be the deserialized data: " + bd);
myClientSocket.close();
catch(Exception ex)
System.out.println(ex.getMessage());
data class:
public class Buchdaten implements Serializable
private static final long serialVersionUID = 1L;
private String autor;
private String titel;
private String jahr;
private String verlag;
private int number;
private int id;
public Buchdaten()
public void setDataToArray(String autor, String titel, String jahr, String verlag , int number)
this.autor = autor;
this.titel = titel;
this.jahr = jahr;
this.verlag = verlag;
this.number = number;
public void setDataToArray(int number , int id)
this.number = number;
this.id = id;
public void setDataToArray(String autor, String titel, String jahr, String verlag , int number , int id)
this.autor = autor;
this.titel = titel;
this.jahr = jahr;
this.verlag = verlag;
this.number = number;
this.id = id;
}>
Oh, and by the way, is there a reason you aren't just using normal java RMI?
Edited by: jtahlborn on Feb 1, 2008 9:34 PMOh, and by the way, is there a reason you aren't just using normal java RMI?
yes for now i have to do it this way. The app must only run on my home pc but later i have to do it with RMI, but first it must work with sockets and streams etc stupd i know... ;-)
sabre150: quote:"As with all two way communication, one thread should be used for writing and another for reading. This ways the blocking nature of the streams works for and not against."
0: Does that mean i have to open 4 threads ? 2 threads for the client class and 2 threads for the server class? each one has an ObjectInput/Output - stream right?
For now i have only opened the outputstream on client side and the inputstream on server side to see wether it works at all. Furthermore my object is now serialized to the satz.dat file and it works.
1. Is there a way to serialize my data "meineBuchdaten" on-the-fly without writing it into a file on harddisk?
2. I want to print out the deserialized data but it doesnt work i get no output using the system.out.println method?
3. After this output: Connection done - handshake Socket[addr=/127.0.0.1,port=3139,localport=10001] I get this output: null
why null? from where does this null come?
Edit: ok my debugger work now again i reinstalled eclipse... debugging the cast into "meineBuchdaten" is the problem because right after this the debugger jumps into an exception this one
catch(Exception ex)
System.out.println(ex.getMessage());
}Edit: I have changed again the code a bit only this:
// Output of the deserialized data for test purposes
System.out.println("This should be the deserialized data: Autor: " + bd.getAutor());
its accessing the autor attribute variable of the bd object in a proper way but still the bd object is null i guess the problem is my serialized data on the client side is not transported what do i wrong can someone pls help me please ?
changed code:
client class:
public class ClientThread extends Thread
ClientThread()
public void run()
try
InetAddress ip = InetAddress.getByName("localhost");
Socket socket = new Socket(ip , ServerThread.PORT);
System.out.println("test");
// ObjectOutputStream for the object to be sent over socket to the server
ObjectOutputStream outgoingObject = new ObjectOutputStream(socket.getOutputStream());
// writing the class object "meineBuchdaten" into a file on the hard disk
try
ObjectOutputStream oos = new ObjectOutputStream(new BufferedOutputStream(new FileOutputStream("d:/satz.dat")));
oos.writeObject(meineBuchdaten);
oos.flush();
oos.close();
catch (NotSerializableException nse)
System.out.println("No Serialization of the class " + nse.getLocalizedMessage() + " is possible");
catch(IOException ioe)
System.out.println(ioe.getMessage());
// closing the ObjectOutputStream and the client connection to free resources
outgoingObject.close();
socket.close();
catch (Exception e)
e.printStackTrace();
server class:
public class ServerThread extends Thread
public static final int PORT = 10001;
private ServerSocket myServerSocket = null;
private Socket myClientSocket;
private Database myDatabase = new Database();
public ServerThread()
public void run()
try
myServerSocket = new ServerSocket(PORT);
catch (IOException e)
e.printStackTrace();
System.out.println("Started: " + myServerSocket);
try
while(true)
// wait until the client connects...
myClientSocket = myServerSocket.accept();
System.out.println("Connection done - handshake " + myClientSocket);
ObjectInputStream incomingObject = new ObjectInputStream(myClientSocket.getInputStream());
// Reading the serialized data and cast it to the proper type
Buchdaten bd = (Buchdaten) incomingObject.readObject();
// Output of the deserialized data for test purposes
System.out.println("This should be the deserialized data: " + bd);
// closing the ObjectInputStream and the client connection to free resources
incomingObject.close();
myClientSocket.close();
catch(Exception ex)
System.out.println(ex.getMessage());
}Edited by: pel on Feb 2, 2008 2:04 AM -
How can I get my iPhone to show up on the panel to the right iTunes? I keep connecting it but it does not work.
http://support.apple.com/kb/TS1538
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My Wi-Fi connection on my iMac drops frequently. The other computers in the house do not have this problem. If I go into the Network Preferences and choose my Network it connects immediately but it does not remember the setting and I must reselect my network frequently.
The iMac picks up a wireless signal from the back of the screen, so you would want to avoid having it close to a wall, or in a confined area where the wireless signal cannot easily reach the iMac's antenna.
We don't know how far the iMac is from your wireless router, or how many walls or other obstructions might be in the signal path that would limit the quality of signal that the iMac receives.
Nor do we know whether you might have a cordless phone near the iMac, or whether you may be using a wireless keyboard and/or mouse....all of which can interfere with the wireless signal.
Can you provide some more info on this? -
internet Download Manager cannot integration with firefox4 its Look in the menus it works but it does not actually work
IDM may need to be updated to work with Firefox 4.0. You could contact them and make them aware of the problems you are having with their program.
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I tried syncing entire music library to ipod. some albums were skipped. tried clicking and dragging but device does not get highlighted when i drag the album to the device. How can I sync album to ipod? the album is imported and not purchased thru itunes store.
Does it play in iTunes on the computer? What is the format of the album?
Right click and select Get Info. Look under File in iTunes 12 -
Subject says it all for the most part.
A shared email account we'll call "[email protected]" is not syncing tags across other end users Thunderbird. User A will tag an email as Work but it will not sync/show on anyone else's application. I've read that Thunderbird stores tags locally now? Is there a way to sync them up to our IMAP server? Or would we have to revert to a previous version of Thunderbird (if so which)?
Any help is greatly appreciated. Thanksthe issue is probably that the server does not support tags..... Thunderbird stores them locally, but syncs them were the server supports it.
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Yesterday my wired connection worked, today it does not.
As I said in the title, it stopped connecting successfully from this morning. Usually it got connected at boot, via systemd and [email protected]
Now not only it doesn't do that, but even running dhcpcd manually won't work.
If I try systemctl status [email protected] I can see that it failed. First the reason was that it didn't get an IPV6 address, now it says "Network is unreachable". This is so weird. At first I thought the reason was that probably the router does not support IPV6, so I added ipv6.conf.all_disable_ipv6 = 1 (something like this, I don't remember exaclty) to /etc/systemd.conf.
Now nothing works...
Please help if you got any suggestions! Thanks in advance,
rubikHint: Look at the output of ip link
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Airport express: wireless works, but internet does not
Hello.
It happened yesterday for no apparent reason: Internet was not working via airport anymore, as it should have normally.
Config: Cable modem to Airport extreme (.g); USB printer attached to base station, base station Ethernet port going to router with Boradband phone and 1 PC attached to it.
4 MAc computers attached to Network (and getting Internet) via Airport.
Internet connection using DHCP, dynamic IP address provided by RoadRunner (Time Warner).
I tested Cable Modem (works), all ethernet cables (good), reset base station and recreated an airport network.
Airpot network works, USB printer is accessible via Airport, but Internet is still off (although Network Configuration in Sys Pref give me a green light and informs me that I am connected to the internet)
My question: is it possible that Base Station fails only for its Internet/WAN capability, and not for Network functions?
thanks. This one is a puzzler.
PaulHello.
We have been having the same problem discussed in this thread earlier, described as follows:
It happened two days ago for no apparent reason:
Internet was not working via Airport Express anymore, as it
should have normally.
Config: Cable modem to Airport Express via a US Robotics router,
2 MAC computers (iMac700 and MacMini) attached to Network (and getting
Internet), the iMac through router and the MacMini via Airport Express.
Internet connection using DHCP, dynamic IP address
provided by RoadRunner (Time Warner).
iMac connected to router is getting Internet just fine; MacMini connected to network via AEX is getting network signal but no Internet. Network diagnostics says it can't tell what's wrong and call ISP. ISP says it's an Apple problem.
I tested Cable Modem (works), all ethernet cables
(good), Airport Express network works, but Internet is still off for MacMini.
I've done a power recycling exercise twice, but still no Internet on the MacMini.
Does anyone have any ideas? Both my son and I are stumped. He's a teenager and is fairly computer savvy. Neither of us has been able to figure this out.
Joe -
WRT54G 1.1 Wireless works, but Ethernet does not
Evening,
This evening, I flashed the firmware on my WRT54G V1.1.
Everything went fine, and it said click continue to continue, which I did.
I tried to reset back to defaults (button on back), which as far as I know took, but I still can not access via wired connections. For the heck of it, I hopped on the laptop. Sure enough, the settings did take, because I could see and connect to the default settings (SSID of linksys, default pass, etc).
I looked in the configuration page, and see that it is not pulling an IP from the cable modem. I reset the modem, reset the router, but still can not connect via wired.
I even set my ethernet to a static IP (192.168.1.55) with a 255.255.255.0 mask, and cant even ping the router (192.168.1.1), however, I can ping it on the laptop connected via the wireless.
It appears all my ethernet ports are dead, but, just from an upgrade?
Anyone have any idea?
Any help would be appreciated, thanks.Hi… Reduce the MTU on that router and check if you can get the connection on wired PCs. Or else reduce the Card speed (link, speed and duplex) to 10 Mb half duplex. This should give you a connection. For internet IP address, make sure you clone the MAC address of the Wired PC to this router (MAC Address clone sub-tab under setup) and power cycle the network. You can also try resetting the router for 1 min again.
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Time Capsule: IPv6 works, but IPv4 does not
I have a Time Capsule (running 7.7.3) and a Mac Pro (2010, running 10.10.1) connected via ethernet. My ISP (Webpass) has IPv6 support.
The Mac Pro can communicate over IPv6 (e.g. ping6 google.com works; I can load google.com over IPv6 using Safari).
However, IPv4 does not work. The Mac Pro isn't even getting an IPv4 address via DHCP from the Time Capsule.
I'm pretty sure I have my IPv4 configuration correct in the Time Capsule, because if I turn on wifi on the Mac Pro (using the Time Capsule as my base station), the wifi interface gets an IPv4 address, and can reach the Internet over IPv4.
Possibly relevant: 3 days ago I noticed that IPv6 wasn't being routed properly by my ISP, so I filed a trouble ticket. They fixed it 2 days ago, which is when my wired IPv4 networking broke. (Given that I can use IPv4 via wifi suggests that the problem lies with the Time Capsule).
I have tried rebooting the Time Capsule and different ethernet ports on both the Time Capsule and Mac Pro, to no avail.
How can I get wired IPv4 working again?I wish you were running anything but yosemite on the computer as it is least reliable networking OS yet.
Factory reset the TC. Redo the setup.. please use all short names, no spaces and pure alphanumeric.. do not use the names apple wizard will recommend.. keep passwords also 8-20 character pure alphanumeric but mixed case and numbers.
In ethernet setup of the computer.. how have you got ipv6 set??
How is ipv4 set?
Have you tried static address in the Mac?
What sort of broadband is this?? If there is a modem what sort? And what mode is the TC running in?
One of the strange things that can happen.. with IPv6 you can use TC bridged to a fibre connection..
But for ipv4 to work it must be set to DHCP and NAT in the network tab. -
Weirdness: http works but https does not
I have a very weird problem which no-one has been able to fix.
I have an Airport Extreme card and a third-party DSL modem / wireless router combo. Most internet activities are fine (ftp, email, http) but whenever I try to access a secure site (https) or run a VPN connection (Apani Netlock) one of three things happen:
1. I spontaneously disassociate from my WiFi base station, losing the wireless connection. If I cancel the https request or close down the VPN, the wireless link comes back after 5-10 seconds.
2. I get TCP/IP timeouts - no responses from server.
3. It works, but extremely slowly. Loading a single https web page can take anywhere between 30 seconds to 3 minutes. I'm on a 1.5 Mb/s DSL link.
Things I have tried:
1. Connecting by ethernet directly to the router instead of using 802.11b/g - all the problems go away. So it is not a DSL modem or ISP issue.
2. Changing the MTU of the Airport Extreme card (en1). I have tried values from 600 to 1492. Same problems exist - makes no difference.
3. Tried an Apple Airport base station connected by ethernet to the modem instead of using the modem's wireless. Same problems exist, although the VPN doesn't work at all (even slowly) because the ABS does not support that particular VPN protocol.
I'm at my wits end. No one I have spoken to at tech support at the ISP or modem manufacturer have ever heard of such a problem.
HELP!Ok, it's some years later. and the problem has gone away. Things which may have fixed it: OS software upgrades, client software upgrades, better signal strength (this problem did seem more prevalent at low WiFi signal strengths).
-
TS3367 facetime used to work but now does not work on any of my devices
I have been in regular contact until about 4 days ago using facetime on my iphone 5 imac 10.7.5. ipad 2 now none of these devices work from incoming calls from Philipinnes. Take note the caller had latest macbook pro 13 inch and is able to call Guam on fatetime with success. What is happening why is incoming calls alway failing. This has been 4 days running and is not good enough. Okay I havent got the latest updates but why in the late few days whould this effect anything. I mean 3 devices and none of them work. This is most frustrating and annoying. I have intead used skype which does work but at night time the camera is not as clear. Tanke note also earlier in the year I received calls from Vietnam and although I did have dropouts was always able to connect only these last four days have had no success. Also I have not been able to call out. The wireless has full bar and am near the modem that is not an issue. Unless there has been a recent change why is htis not working all of a sudden.
THere seems to be a FaceTime issue and some users who have been in contact with Apple support claim that Apple is working on this.
I have read many posts on the issue and have seen that there are many reporting that when they have updated their various devices to the latest software, the issue has been resolved.
You can wait for Apple to resolve the issue OR you can update everything to the latest software and see if this solves your issues. -
My WiFi & Ethernet connection works but automatic is not working
The settings for my networking have gone kuh fluee (sp???) since I got up and running on my brand new MBP with 10.5.1 (and yes, I've installed all of the updates).
I have 3 locations set up (or I thought they were set up as they worked on my old PB):
WiFi
Ethernet
and then there's AUTOMATIC
Both my WiFi and Ethernet work fine. I want the Mac to understand that if Ethernet is connected, go and use Ethernet; if no Ethernet, then use the WiFi. I thought this would work when the location is switched to AUTOMATIC. AUTOMATIC simply just can't seem to connect. It continues to show all lights green except for the NETWORK light. I restart the modem and router over and over and the Networking thing just keeps telling me to do that again. Ok - what am I NOT getting here. Again, note that both ethernet and WiFi connection as separate locations work; what is NOT working is AUTOMATIC and I want that to work so that the Mac "automatically" detects what is out there for me to connect and if Ethernet, it connects via Ethernet.
Insight? Solutions? Advice???The following is an excerpt from The Peachpit Learning Series for Leopard but I am sure it applies to Tiger and probably Panther as well. I have four computers at home, three with Leopard and one with Tiger. One Tiger machine is connected to my Airport Extreme via ethernet and my other desktop runs Leopard and also is connected via ether net. My two laptops are connected via Airport.
Open network preferences via System Preferences. You'll see the network window which should list your networks on the left had side of the page in the order of preferences what you might want to do and your individual computer is change that order of preferences to Ethernet first and Airport Second, that way if you are connected via ethernet it will connect that way. If you are not connected via ethernet it will look for the ethernet connection first and not seeing one, it will move on to Airport. You can change the order of preferences by clicking the activity button at the bottom of the window on the left that looks like a little cog wheel and then set service order.
I'm not 100 percent sure but by choosing automatic it either tells the system to do the above automatically when you open your browser or email to it means go to your wireless system of preference.
Hope this helps. -
HP LaserJet P1505n, connected by Ethernet cable, does not get IP address so I can't get to web admin
Hello and thanks in advance,
I've read as many threads as possible and done everything I could to get my HP P1505n working again but can't and need some new advice.
I've had this printer for a couple of years and it worked well and always connected. I had it plugged into a router (at one point linksys, then a dlink) and had given it a static ip address that it always printed to.
Recently, I got a Cisco modem/router from my internet service provider, I plugged in the printer's ethernet cable to it, and suddenly I couldn't print to it anymore. I couldn't access it's webadmin console and couldn't change any settings. I went through various troubleshooting steps and ultimately did a hard reset.
I left it alone for a week (thankfully I have another printer) but am trying again to get it up and running. Right now it has switched to AutoIP but it doesn't get in IP address. It only shows 169.254.241.24. I even tried to connect directly to it via ethernet and change my computer's ip to 169.254.241.23 with the same subnet mask and it won't connect to it - I can't get to the webadmin to manually assign it an IP like 192.168.0.111
Right at this moment actually I cannot even get a configuration page to print and the amber light above the green ethernet light flashes on for a second or two and then off for a few seconds and that cycle continues.
What can I do to get this working again aside from plugging in a usb cable and forgetting about network printing (the reason I bought it in the first place)?
Thanks in advanceHi gr---8 ,
Sorry to hear you are still having issues setting up the printer on the wired network.
We will need to find out if it is the Ethernet port on the printer, or the network causing this issue.
Do you have Mac filtering on the router?
Disconnect the Ethernet cable from the printer.
Restore the printer back to factory settings.
Print a hardware test page to test the printer's hardware. Make sure the SSID and IP address is cleared from your router's setttings. Printing a Configuration Page in Windows.
Connect the Ethernet cable directly to the computer.
Print the configuration page again to see if you get a IP address to test the Ethernet port on the printer.
What is the IP address?
Run the add printer wizard to install the printer.
Test the printer.
Were you able to see the printer, add the printer and print?
What operating system are you using? How to Find the Windows Edition and Version on Your Computer.
Please provide in detail the results.
Have a nice day!
Thank You.
Please click “Accept as Solution ” if you feel my post solved your issue, it will help others find the solution.
Click the “Kudos Thumbs Up" on the right to say “Thanks” for helping!
Gemini02
I work on behalf of HP
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