Question about 3Com (3CRUSB10075) 802.11g/b Wireless Adapter

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Wireless 3crusb10075 problem

Hai.. i'm having problem with my wireless adapter. in the connection window it says it is connected but 0 packest are received.. while packets sent are increasing. pls help i have formatted the pc, windows 2000. have removed any viruses that could cause the problem. dunno wat to do more.. pls help me

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  • macmyworld Mar 20, 2008

    i have the same problem with my xp...
    i've setup my wifi adapter as an adhoc connection so that my other devices like laptop,iphone, etc could connect to the internet through (ICS) my desktop which is connected to a wired LAN...

    I can connect to the ad hoc setup, i can also browse the internet, but my problem is when i disconnect to this ad hoc and try to connect again, it won't give me the correct ip anymore...i put 192.168.0.1 to my wifi adapter so that i could distribute 192.168.0.2 - and above to my devices connecting to it...
    I solved this problem by shutting down, not restarting but shutting down, which is tedious and not so simple..

    question: is there a way or workaround, in which i don't have to shutdown my desktop whenever my wifi connection get disconnected to my wireless devices?


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Sounds as if your router may need to be set to enable wireless connection and enable DHCP, this alocates your wireless adapter an I.P Address automatically. If this is alraedy the case, check the properties of your adapter to see if it's set to recieve I.P address automatically. If still no joy find your routers I.P. address and DNS address (this is what you type in your web browser to set it up). If your router is 192.168.2.1 or similair, set your adapter at 192.168.2.2 and the same DNS address normally 255.255.255.0. Restart both pc and router and try again. Also make sure network sharing has been set up via the XP wizard.

Posted on Dec 14, 2006

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Posted on Sep 22, 2014

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How do I fix server error 8004849


This is from Microsoft:-

If you receive Server Error: 0x80048849 and/ or 0x80048820 in Windows Live Mail at home or while you're in your regular network, it may be due to the setting of the MTU (Maximum Transmission Unit) on the mail client.
If you get this synchronization error at a coffee shop, airport or a place from where you don't usually connect to the internet, we suggest synchronizing mail on your regular internet connection.
When the MTU setting on the mail client is larger than the MTU settings configured on network devices between your mail client and the mail client servers, some data packets may be lost, causing mail synchronization to fail.
Follow the steps given below to fix synchronization errors due to mismatched MTU settings:
Determine the MTU setting on your network device
Apply the MTU setting to your mail client
Determine the MTU setting on your network device
This is a trial and error process, and will be different for each user. You may have to repeat the procedure below a few times, before you can find out the MTU setting of your network device. Follow the steps below:
Open command prompt
Click Start ? Run ? Type cmd
In the Command Prompt Window, type in the following:
Ping <Mail server address> -f -l 1500
Notes:
The <Mail server address> is the IP address of the mail server that you are unable to synchronize with.
For Hotmail, 65.55.33.106 is the IP address for DeltaSync (mail.services.live.com).In this document we will be using this IP address as an example.
In the -l 1500, 1500 is the max MTU for Ethernet connections.
You may get an error like this (100% packet loss):
C:\Users\username>ping 65.55.33.106 -f -l 1500
Pinging 65.55.33.106 with 1500 bytes of data:
Packet needs to be fragmented but DF set.
Packet needs to be fragmented but DF set.
Packet needs to be fragmented but DF set.
Packet needs to be fragmented but DF set.
Ping statistics for 65.55.33.106:
Packets: Sent = 4, Received = 0, Lost = 4 (100% loss)
If you received the error above, subtract 28 from the 1500 bytes of data. In the Command Prompt Window, type in the following:
Ping <Mail server address> -f -l 1472
If you get a 0% Packet Loss with 1472, it means the MTU setting of your configured network is 1472
Note: If you continue to receive the error described in (b) above, repeat the above steps by subtracting 28 from 1472 bytes of data. Repeat these steps until you get a message for 0% packet loss. If you were able to communicate with the mail server at an MTU size of 1424, you will receive the following:
C:\Users\username>ping 65.55.33.106 -f -l 1424
Pinging 65.55.33.106 with 1424 bytes of data:
Reply from 65.55.33.106: bytes=1424 time=230ms TTL=241
Reply from 65.55.33.106: bytes=1424 time=196ms TTL=241
Reply from 65.55.33.106: bytes=1424 time=162ms TTL=241
Reply from 65.55.33.106: bytes=1424 time=163ms TTL=241
Ping statistics for 65.55.33.106:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss)
Approximate round trip times in milli-seconds:
Minimum = 162ms, Maximum = 230ms, Average = 187ms
Apply the MTU setting to your mail client
Follow the steps below:
Open command prompt as administrator (you must be an admin on the computer)
Click Start ? Run ? Type cmd
In the Command Prompt Window, type in the following:
netsh int ip show int
You will receive a message similar to the following. Find the connection name that you use to connect to the internet and note the Idx value
C:\Users\Username>netsh int ip show int
Idx Met MTU State Name
--- ---------- ---------- ------------ ---------------------------
1 50 1472 connected Loopback Pseudo-Interface 1
11 20 1472 connected Local Area Connection
To apply the correct MTU setting on your mail client, type the following in command prompt:
netsh int ip set interface <Idx value> mtu= <MTU setting of your router> store=persistent
Press Enter
For example, if the correct MTU setting was 1424 and Idx value of your connection was 11, you will type:
netsh int ip set interface 11 mtu=1424 store=persistent
If (c ) was successful, you will receive the confirmation message "Ok"
Exit command prompt
Restart your computer
Open WL Mail and see if the issue persists.
have Windows Vista Home Premium Recently unable to send or recieve Window...

Feb 12, 2015 | Toshiba Computers & Internet

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Hi I have a e systems laptop on windows xp and yesterday it all of a sudden lost the wireless connection and now it will not find it I no it's not the Internet as I have my phone and ps3 connected no...


Check the following command... Open the run box and type cmd and hit ok.
Now type as ping www.Google. Com and hit enter

Ishould respond with packets sent received, sent and lost
Check the lost packets and it should be zero

If found another contact ISP

Mar 26, 2014 | Computers & Internet

1 Answer

Vista have new router wireless network shows connected but not receiving packets


The problem is might be your computer is CONNECTED,but there are no network activity so you're receiving no packets
If you can't connected to the internet,then that network probably doesn't has an internet access on it

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My desktop won't connect wireless to the internet after installing a dlink dwl-510 wireless card, its says the installation was successful but when i try to connect to my network by puting the network key...


First make sure your modem is wireless, if it is not, you need to purchase a wireless router that connects to your modem. If that is all in place and you still have no connection, you may have to unplug modem and or wireless router for 30 second then replug back in, wait a few minutes, then try to get on line, if that does not work, go to the desktop, go to start, then to run command, punch in cmd, then enter, a black screen should appear, type in ping then a space then your ip address, like mine is 169.254.2.63 if you don't know it call who you have for internet service, ask them for it, that said press enter, you should receive a message saying 4 packets sent 4 packets received 0 loss, this now means your connection is good, and you should be able to go online, also within windows is a network troubleshooter, you can go there: start:control panel: network settings.also one other big reason it could be also is that your modem is secure, and has a wep key, you need that to make a connection, the wep key is printed under your modem, write it down. Then go to internet explorer like you are going online, now look on the task bar all the way to the right, right click the little computer scrren go to open network connections, strat a new connection, follow the prompts, and when asked put your wep key in.

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1 Answer

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check for the ethernet cable attached to this computer. try doing the loop back test
start->run->type cmd-> type the command ping 127.0.0.1
If u get 4 packets sent recived 4 then everything is fine u have some browser or OS issues else if u see 4 packets sent and lost some then prb with the network card or the ethernet cable.

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2 Answers

I cant connect just one network


Be sure that your wireless network is working
Check your wireless router settings
Check if you see any other wireless network available on your computer
Test connection, see if you pulled an IP address
Go to the Windows desktop
Select Start then Run
In the text box type: cmd (WIN98/SE type command)
At the command prompt type: ipconfig
4. What does it read as the IP address?
* If it reads 192.168. something dot something then you are pulling
an IP address and are connected to the network. The problem is
software related, check your firewall, and wireless card configuration.
Also check any WPA or WEP encryption keys. Check with the respective
manufactures.
* If it reads 0.0.0.0 for the IP address you are not connected to the network.
* Check your connection configuration and the adaptor.
* Check with the respective manufactures.
STEP TWO/ Basic troubleshooting continued....Testing the adaptor
1. Go to Windows desktop
2. Select Start then Run
3. In the text box type: cmd (WIN98/SE type command)
A DOS window will open.
4. At the prompt type: ping 127.0.0.1 (reserved IP address for all adaptors)
5. Check the line that reads "packets sent = 4, Received = 4, Lost = 0
A. Zero is good, the adaptor is working. Again check the connection
configuration,and the adaptor configuration.
It may be a power issue especially with older or less expensive computers
or wireless cards.
* Check the antenna location, are you inside or outside, look for interference.
* Check with the respective manufactures.
B. If it reads all 4 packets lost, the adaptor is not functioning.
* Check and update the drivers, Contact the respective manufactures.
* If it shows any number of packets lost (you are dropping packets)
it is an adaptor or signal strength issue (generally form the laptop side,
not being able to reach back) especially with older or less expensive
computers or wireless cards.
* Update the drivers
* Check antenna location, or distance from the signal
* Contact the respective manufactures.

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Belkin usb problems


if both computer's are connected to a router. Try disconnecting power cable from router for about 30 seconds then reconnecting. The reason that I suggest this is because you mentioned that there is no packet being trans/rec. You might also want to check the IP addresses to make sure there's no interference with the other computer's IP address

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6 Answers

Wireless connects, but no activity received


Hi, Turn off any firewall (incl Windows firewall). In the connection window click on the right tab and see if an IP address has been asigned to your wireless interface. If it has click Start->Programs->Assessories->

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