Question about NetGear DG834G Router

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UPnP not supported TCP high performance not supported traffic congestion not supported

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A. Determining the IP Address and MAC Address of a Computer:

Note: Please use the computer for which the Ports are to be opened:

For Windows 2000/XP users:

1. Please click on Start and select Run.
2. Type in cmd and click on OK.
3. In the Command Prompt, please type ipconfig/all then press Enter or Return key.
4. Please make sure that the Ethernet adapter has an IP Address that is the same range as the router (e.g. 192.168.1.2 for the computer and 192.168.1.1 for the router).
5. Please note down the IP address and Physical address.

B. Reserving an IP Address:

1. Please open any web browser like Internet Explorer or Netscape Navigator.
2. Connect to the router by typing http://routerlogin.com/basicsetting.htm or http://192.168.1.1 in the address field and click Enter or Return key.
3. A window will prompt for a user name and password. The default username is "admin" and the default password is "password".

Note: If it does not take password as the password, you might have changed it when you have run the NETGEAR Setup CD so please try other passwords. If you cannot remember the password, you need to reset the router and run the Setup CD to reconfigure it.

4. When the setup page opens, click on LAN IP Setup under Advanced tab.
5. Click on Add under Address Reservation.
6. Under Address Reservation window, please select the radio button of the computer you wish to add from the Address Reservation Table.
7. If the computer you want is not on the list, please click on the Refresh button to update the table.
8. If the computer is still not on the Address Reservation Table, please type in the IP Address, MAC Address (Physical Address), and Device Name of the computer you wish to add.
9. Click the Add button when done.

C. Enabling DMZ:

1. On the left side of the setup page, click on the WAN Setup under Advanced tab.
2. Check the Default DMZ Server and specify the IP address of your computer.
3. Click on the Apply button.

Posted on Sep 15, 2009

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How do latency and packet loss determine network performance and what can be...


The triumvirate of network performance metrics are packet loss, latency and jitter.

Almost all network applications use TCP (Transmission Control Protocol) to get their data from point A to point B. About 85% of the overall internet's traffic is TCP, of which specific aspect is that it completely hides the packet-based nature of the network from applications. Whether an application hands a single character or a multi-megabyte file to TCP, puts the data in packets and sends it on its way over the network. The internet is a scary place for packets trying to find their way: it's not uncommon for packets to be lost and never make it across, or to arrive in a different order than they were transmitted. TCP retransmits lost packets and puts data back in the original order if needed before it hands over the data to the receiver. This way, applications don't have to worry about those eventualities.

Network latency
TCP has a number of mechanisms to get good performance in the presence of high latencies:
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2) For smaller data transfers TCP uses a "slow start" mechanism. Because TCP has to wait for acknowledgments from the receiver, more latency means more time spent in slow start. Web browser performance used to be limited by slow start a lot, but browsers started to reuse TCP sessions that were already out of slow start to download additional images and other elements rather than keep opening new TCP sessions.
3) Also you may use simple open-transfer-close-open-transfer-close sequences that work well on low latency networks but slow down a lot over larger distances or on bandwidth-limited networks, which also introduce additional latency.
4) Try to use a DNS server close by. Every TCP connection is preceded by a DNS lookup. If the latency towards the DNS server is substantial, this slows down the entire process.

Packet loss
Packets are lost in networks for two reasons:
1) Every transmission medium will flip a bit once in a while, and then the whole packet is lost. Wireless typically sends extra error correction bits, but those can only do so much. If such an error occurs, the lost packet needs to be retransmitted. This can hold up a transfer.
But if network latency or packet loss get too high, TCP will run out of buffer space and the transfer has to stop until the retransmitted lost packet has been received. In other words: high latency or high loss isn't great, but still workable, but high latency and high loss together can slow down TCP to a crawl.
2) Another reason packets get lost is too many packets in a short time: TCP is sending so fast that router/switch buffers fill up faster than packets can be transmitted.If TCP has determined that the network can only bear very conservative data transfer speeds, and slow start really does its name justice, it's faster to stop a download and restart it rather than to wait for TCP to recover.
Jitter - is the difference between the latency from packet to packet
Obviously, the speed of light isn't subject to change, and fibers tend to remain the same length. So latency is typically caused by buffering of packets in routers and switches terminating highly utilized links. (Especially on lower bandwidth links, such as broadband or 3G/4G links.) Sometimes a packet is lucky and gets through fast and sometimes the queue is longer than usual. For TCP, this isn't a huge problem, although this means that TCP has to use a conservative value for its RTT estimate and timeouts will take longer. However, for (non-TCP) real-time audio and video traffic, jitter is very problematic, because the audio/video has to be played back at a steady rate. This means the application either has to buffer the "fast" packets and wait for the slow ones, which can add user-perceptible delay, or the slow packets have to be considered lost, causing dropouts.

In conclusion, in networks that use multiple connections to the internet, it can really pay off to avoid paths that are much longer and thus incur a higher latency than alternative paths to the same destination, as well as congested paths with elevated packet loss. The path selecting process can be performed automatically: learnhow to automate evaluation of packet loss and latencyacross multiple providers to choose the best performing route.

on Jan 27, 2015 | Computers & Internet

1 Answer

NAT IS STRICT


STEPS TO CHANGE NAT SETTINGS TO "OPEN":

1- Using your Browser, Log on to your router (by normally typing in the 192.168.1.1 address check your router's manual to see what the default gateway address)

2- If you already know how to log in to your router, then skip this step. If you have never logged on to your router then more than likely you still have the default initial log in credentials (username: admin - Password:1234 ..... Again check your router's manual to be sure). The minute you log in you need to change that password immediately, most network-savvy folks know that 90% of the people out there never reset their router's initial password and they can log on and make any changes to suit their needs, including locking you out of your own router.

3- Once you are logged in, you should be able to find two advance settings (One if for NAT - and the other is for Upnp)

4- Let's start with the NAT setting changes, and we will move on the Upnp at the end. I have personally tried the NAT setting changes and it didn't fix anything, I still had a "Strict" NAT setting on my xbox360, Only when I checked for the Upnp "allow authorized incoming traffic" options when the NAT settings on my XBOX finally came back as "Open" and not "Strict". But I will still explain what I did anyways with the NAT table cause I know it may work for some other routers.

5- So what I did with the NAT setting is this. I located the NAT advanced setting on my router, I click on the NAT (Edit List setting) or whichever link/button you have on your router advanced NAT settings to access the table needed to open certain ports (TCP and UDP - 88 & 3074) .

6- You will need to find out what the static/dynamic (preferably Static) IP address you xbox360 has. To do so, go to the Dashboard, go to the Console settings page, and click on the network settings to see the IP address (should be something like 192.168.1.x). You will need that IP address to enter into your NAT table on your router.

7- Once you got your XBOX's IP address enter it in the NAT Port Forwarding table (From - To - IP address: those are the 3 fields you should have on the table if you are using SUA NAT)

8 - In the first line enter 88 under both "From" and To" fields, then enter the IP address of the xbox in the field where you are to enter an IP address. (this is for UDP port)

9 - Repeat the same step for port TCP (which is 3074)

10- If these changes do not help open your NAT settings, then try the Upnp option. Click on your Upnp Advances settings and click on the "Allow Traffic" option, this is mostly secure because you are only accepting the incoming traffic that matches your outgoing traffic.

Mar 02, 2011 | Belkin Basic Wireless Router

1 Answer

Needs nat type open


XBOX

You Will Have to Disable the Firewall In Your modem / Router

And IF it is a router then Open The Ports

• TCP 80
• UDP 88
• UDP 3074
• TCP 3074
• UDP 53
• TCP 53

And Also Make sure that UPnP is Enabled



========================================================

PS3

You will have to open the following ports in your modem /router
Make sure the firewall is disabled in the Modem /Router
Make sure that UPnP is Enabled

Playstation Network Required Ports

TCP 80
TCP 443
TCP 5223
UDP 3478
UDP 3479
UDP 3658

Playstation Online Game Ports

Call of Duty 3:

UDP 3074
TCP 3074

MotorStorm

UDP 3659
UDP 3660

You can use http://whatsmyip.org/ports/ to test if the ports are open.

Regards
Tom

Jan 27, 2011 | NetGear WNDR3300 - RangeMax Dual Band...

1 Answer

My nat is strict


XBOX

You Will Have to Disable the Firewall In Your modem / Router

And IF it is a router then Open The Ports

• TCP 80
• UDP 88
• UDP 3074
• TCP 3074
• UDP 53
• TCP 53

And Also Make sure that UPnP is Enabled



========================================================

PS3

You will have to open the following ports in your modem /router
Make sure the firewall is disabled in the Modem /Router
Make sure that UPnP is Enabled

Playstation Network Required Ports

TCP 80
TCP 443
TCP 5223
UDP 3478
UDP 3479
UDP 3658

Playstation Online Game Ports

Call of Duty 3:

UDP 3074
TCP 3074

MotorStorm

UDP 3659
UDP 3660

You can use http://whatsmyip.org/ports/ to test if the ports are open.


Regards
TOM

Jan 26, 2011 | Computers & Internet

1 Answer

How do i change NAt type to a lower type


XBOX

You Will Have to Disable the Firewall In Your modem / Router

And IF it is a router then Open The Ports

• TCP 80
• UDP 88
• UDP 3074
• TCP 3074
• UDP 53
• TCP 53

And Also Make sure that UPnP is Enabled



========================================================

PS3

You will have to open the following ports in your modem /router
Make sure the firewall is disabled in the Modem /Router
Make sure that UPnP is Enabled

Playstation Network Required Ports

TCP 80
TCP 443
TCP 5223
UDP 3478
UDP 3479
UDP 3658

Playstation Online Game Ports

Call of Duty 3:

UDP 3074
TCP 3074

MotorStorm

UDP 3659
UDP 3660

You can use http://whatsmyip.org/ports/ to test if the ports are open.

Jan 06, 2011 | Netopia 2247NWG-VGx Wireless Router...

1 Answer

Want to set nat type to open


XBOX

You Will Have to Disable the Firewall In Your modem / Router

And IF it is a router then Open The Ports

• TCP 80
• UDP 88
• UDP 3074
• TCP 3074
• UDP 53
• TCP 53

And Also Make sure that UPnP is Enabled



========================================================

PS3

You will have to open the following ports in your modem /router
Make sure the firewall is disabled in the Modem /Router
Make sure that UPnP is Enabled

Playstation Network Required Ports

TCP 80
TCP 443
TCP 5223
UDP 3478
UDP 3479
UDP 3658

Playstation Online Game Ports

Call of Duty 3:

UDP 3074
TCP 3074

MotorStorm

UDP 3659
UDP 3660

You can use http://whatsmyip.org/ports/ to test if the ports are open.

Jan 05, 2011 | NetGear DGN2000 Wireless Router

1 Answer

Replans route every 60 seconds


It is possible that your device is re-routing due to traffic. Inside the control panel or settings of the device you should find the routing options. Try disabling routing by traffic.

In highly congested areas it is common for GPS devices to attempt to find a "way out" when in reality, even GPS can't compete with the amount of traffic on our roads today.

I hope this helps.

Jun 09, 2010 | Tomtom GO 910 GPS Receiver

1 Answer

L can get into xboxlive but it come up your nat type is strict peopleon network with this nat type may not be able to join certain games or hear other people while playing online for the best online...


You Will Have to Disable the Firewall In Your modem / Router

And IF it is a router then Open The Ports

• TCP 80
• UDP 88
• UDP 3074
• TCP 3074
• UDP 53
• TCP 53

Apr 08, 2010 | Microsoft Xbox 360 Elite Console - Black

2 Answers

I can play online with with my xbox 360 with some friends but not others. I think it may be because of my nat.


Verify you have uPNP enabled on the router and that should do the trick.

Your router may not support it, so if not, you can setup a port fowarding rule for TCP port 3074 to forward to the IP address of your xbox 360

Jul 14, 2009 | Zyxel P660HW-D1 Router

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