Poor network performance on wired ethernet port and airport

I'm using Leopard 10.5.1 on a home network comprised of a new, fully up-to-date (firmware wise) D-link wireless router and a couple ethernet hubs. I initially had problems because of old router firmware, but buying the new router and making sure firmware was up-to-date seems to have solved the connection problems. What I now experience is that whichever network cennection I am using, wireless or wired ethernet port, will slow down so slow that it's impossible to get any web content, upload files to my local server, or sent emails with any kind of attachment. Turning off the connection I am using, either wired ethernet or airport, and switching to the other solves the problem for a short time, usually a couple days or so. Then that connection with slow down and I have to switch back - again solving the problem. So to keep my network connection alive, I have to keep switching back and forth between the wired ethernet and the airport connection.
The rest of my network consists of several Windows machines including a Windows 2000 server. None of these devices ever have any problems with network access.
I've tried playing with the advanced settings with no luck. Does anyone know of a specific setting that might be the culprit?

Hi ,
Maybe you can try to disable checksum offloading and jumbo frames on the Physical NIC (ESX platform) to check result .
Best Regards
Elton Ji
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Airport express connected to my existing network - Can I connect a device to the network through it's ethernet port?

Is it possible when my airport express is wirelessly connected to my existing network - to connect a device to the network through it's ethernet port or is it wireless only at that point?
I'm trying to connect my A/V Receiver in another room to my network without having to run a CAT5 cable all the way to the router. I'd rather be able to connect it to my airport express if it will work that way.

Is it possible when my airport express is wirelessly connected to my existing network - to connect a device to the network through it's ethernet port or is it wireless only at that point?
Yes.....IF
You have an AirPort Express 802.11"n" version configured to "join a wireless network" and you have enabled the option to "Enable Ethernet Clients"
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You have an AirPort Express 802.11"n" configured to "extend a wireless network" from another Apple "n" router, in which case the Ethernet port is enabled by default

Poor Network Performance from VPN sites

We are experiencing poor network performance when connecting from hardware VPN sites. VPN sites have Cisco Hardware VPN client 3002 which terminates to Cisco 3005 VPN concentrator. Geting upload/download speeds of 355/484kbsp from VPN to surewest.com. If I remove the VPN and connect laptop directly to dsl modem, speeds are 3mb up and 1mb down. Any ideas what could be causing this?

Try this
Adjust the MTU and MSS size in concentrator and client.
Try these link for more info:
http://www.cisco.com/en/US/products/hw/vpndevc/ps2284/products_configuration_guide_chapter09186a008015ce0e.html#1223423
http://www.cisco.com/en/US/products/hw/vpndevc/ps2286/products_user_guide_chapter09186a00803ef6c5.html

Looking for an Access Point with 2 Ethernet ports and powered via PoE

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I am looking for an Access Point with 2 Ethernet ports and the access point can be powered via PoE. I have been assigned with a requirement where the rooms need to have access point as well as an Ethernet Cable provided from the Access Point as a backup for connectivity.
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For the backup plan, the cheapest solution may be to just run a couple new cat5e drops to the room(est cost $250). If not then purchase a small Cisco POE switch for the room(est cost $2k). For wireless I would purchase a POE enabled Cisco AP. But you will need to verify the POE switch/blade you will be connecting the AP to can power the AP you buy. I got burned by that issue when we purchased some Cisco 1251 AP's with dual radios and they needed more power than our 4500 POE blades could handle. We were told we would need to purchase new 48 port 10/100/1000 blades or power injectors. Our Cisco sales vendor took the heat for that mistake.
Posted by WebUser Steven Kinney from Cisco Support Community App

Dual Ethernet Ports, and Air Port Wifi

I have a early 2008 and 2009 Mac Pro and was wondering if there was a way to connect both ethernet ports and the airport wifi as one "adress" so i would essentially have 3x the bandwith for downloading/uploading, etc.
This is in both Snow Leopard and Win XP Via Boot Camp

You might start by reviewing this thread and associated links:
http://www.insanelymac.com/forum/index.php?showtopic=57382.
Apparently it should be possible to link the ethernet ports together but not the wireless.

It seems like Ethernet backup and Airport backup goes in different ways

Since one month a go, I've been having problems with Time Machine backup over Time Capsule.
When I run Time Machine through Ethernet, there is no problem. Fast and clean. In the Console there is not any error message.
I unplug ethernet cable, start airport, and in the next copy appears: "Bulk settings atributes failled", several times. Few backups after it will appear problems with a "file path" and few after will appear "deep traversal".
I plug the Ethernet cable, disconnect airport and I forced to re-index the image bundle. Few backups correct with Ethernet. Unplug ethernet, connect airport, and again the same history.
It seems like Ethernet backup and Airport backup goes in different ways.
Permissions are corrected and there is no problems in any disc with First Aid.
¿Any idea?. Thanks in advance.

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I have a current 2TB Time Capsule. I would like to add more ethernet ports for needed expansion. Will an Airport Extreme conflict with the Time Capsule for needed ethernet ports and will wireless from both units conflict?

I own a current 2TB Time Capsule and I need to expand my network system to include more ethernet (wired) ports. I am considering an Airport Extreme that would give me enough wired ports. Will the wireless capabilities of both units conflict with each other? I only need one wireless network. Thank you for any help.

While you could certainly add an AirPort Extreme to provide additional Ethernet ports, you could also save about $150 by purchasing an inexpensive switch, such as one of these:
http://www.amazon.com/D-Link-DGS-1005G-5-Port-Gigabit-Desktop/dp/B003X7TRWE/
http://www.amazon.com/TRENDnet-Unmanaged-GREENnet-Auto-Negotiation-Auto-MDIX/dp/ B001QUA6R0/
Consumer grade Ethernet switches typically come in five and eight port configurations. Just be aware that a five port switch only conveys the ability to add three additional devices. An eight port switch conveys the ability to add six additional devices.
An 8 port switch provides twice the capacity of a 5 port switch for considerably less than twice the cost. The price difference between the two is often only $10 or so.
I just checked, the 8 port version of the Trendnet switch above costs exactly $4 more.
An AirPort Extreme is a very flexible full featured wireless router, and would provide three additional LAN ports for wired devices. If all you need is a few more ports though, it's overkill.

Network dropped on wired ethernet

The other day I was browsing along the internet, when suddenly, Shiira notifies me that I'm no longer connected to the internet. Sure enough, my iChat connection was dropped as well. Since then, I haven't been able to connect with wired ethernet.
The cable's fine- it's plugged into the PC I'm using right now. And since I can connect fine from here, I assume my cable modem is fine as well. I'm not using any sort of router.
I tried fiddling around with my network settings, though my knowledge in that area is extremely vague. I pretty much just did what the "Assist me!" button said. That didn't work. I always dread it when my computer tells me to contact the ISP to find out what's the matter.

Typically there's not a lot of setup needed to get a Built in Ethernet connection working.
Do you know if it's a cable or DSL connection? If DSL, do you know what the username and password might be?
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Once we know that the hardware is still working I'd do the following.
1: Unplug the ethernet cable from your computer
2: Trash the /Library/Preferences/SystemConfiguration folder and restart your computer
3: Upon restarting your computer, click on the apple and go to "System Preferences"
4: Click on the "Network" item
5: Change the "Show" selection box to say "Network Port Configurations"
6: Drag Built in Ethernet to the top of the port list
7: If you have a DSL internet connection that is a PPPoE connection type, then change the "Show" selection box to "Built in Ethernet"
8: Go into the PPPoE tab, check the "connect using PPPoE" selection box and enter the appropriate information
9: click on "apple now" in the bottom left corner
10: Plug in your ethernet cable and restart the computer
If you are not connected after restarting we've narrowed out the possibility of it being hardware related and also ruled out the fact that there could have been any corruption in the SystemConfiguration folder. If you're still not connected, change the "Show" box in Network preferences to "Built in Ethernet" and go into the TCP/IP tab to see if you have an IP address...if so, what is it?
Sorry for the long post, but internet connection issues are always fun.
You can always just reset your modem after going through that whole ordeal with the network preferences.
I dunno, let us know if you get anywhere.
8:

I have a iMac g4 swivel and it seems that the ethernet port and the optical drive are not working.

Is there any troubleshooting I can try, short of replacing everything?
I really love this version of the iMac and want to use it in place of my eMac for some home business inventory and printing work.
I need the ethernet to work because the printer can only connect that way. It's a great laserjet from HP (1998 version) and it works like a champ.
As for the disc drive... I would love to install office or iwork but as I said nothing seems to mount. I also can't upgrade it to Tiger. It's running Panther and I can live with that I suppose.
I have wondered if I could exchange parts from the eMac (Motherboard, Optical Drive, Hard Drive) since its bulkyness takes up so much room.
Any ideas?
Thanks
And yes I have a modern macbook pro as well.

You can use the dvd drive on your macbook via target disk mode.
"Installing OS X 10.4 'Tiger' on DVD-Challenged Macs Using FireWire Target Disk Mode"
http://lowendmac.com/misc/06/0710.html
1) Do you have a router? Do you communicate to the internet via wifi?
connect the printer to a router with an ethernet port. This will be an input eithernet port.
You may need to change ip addresses on your printer or on your network.
2) usb to ethernet dongle
Apple USB EN Adapter Network adapter - Hi-Speed USB
http://www.google.com/products/catalog?oe=utf-8&rls=org.mozilla:en-US:unofficial &client=firefox-a&q=usb+to+ethernet+dongle&um=1&ie=UTF-8&tbm=shop&cid=1255179391 6678370799&sa=X&ei=L7xdTsDTGsXz0gHdvazcAg&ved=0CF8Q8wIwAw
verify that the dongle will work on your machine. Any drivers needed?
3) You can firewire to for TCP/IP ( ethernet) to comunicate between macs. Connect your printer to your macbook. Use firewire to communicate between macs. Enable printer sharing.

I set up a router thru my ethernet port and now i am unable to get airport to work.

I recently configured a router connected to my Macbook Pro thru my ethernet port. I am now unable to use Airport at all! Ive tried Network diagnostics to turn it back on and it wont even recognize it , please help

Read the user manual that came w/your router and/or contact their tech support/forums.

Can Slingbox solo be plugged into the Ethernet port on airport express to connect to network?

Slim box requires a wired connection to your network unless you purchase their sling link to create a wireless connection through your home electrical outlets. Can an airport express be used instead? Would the sling box plug into the Ethernet port on the express or though the USB port.

It may be possible as the 802.11n AirPort Express can be configured to enable its Ethernet port for wired clients in one of two methods: 1) The Express is extending another AirPort, or 2) The Express is configured as a wireless Ethernet bridge.

Dead wired Ethernet port?

I have the non-gigabit extreme. Connected my new Apple TV to the third wired port and it could not connect. I don't recall ever using this port, I only have 2 wired computers. The ATV connects via wireless ok but I wanted to save the wifi bandwidth for the macbooks... I moved one of the wired computers over to this unused port and it couldn't access the internet, no connection. I rebooted the extreme but still no connection. Any ideas on how to reset it or ???
Thnaks,
karl

Hi kintampa-
Are you sure that you do not have a bad cable?
You can hook up an ethernet switch to one of the ports and give yourself as many ports as you need.
Luck-
-DP

Extremly poor network performance

Hello all. First time post, please excuse any annoyances.
I'm using a WRT300N Wireless-N Broadband Router connecting three (sometimes four) computers. Two wired and one (sometimes two) wireless, using 802.11G.
After a long period of time or after a short period of extremely high use (usually bit-torrenting assorted files) my network performance crawls to a near stop. My laptop will show an "excellent" connection but the speed will be 1 Mbps. The wired computers still show a connection of 100 Mbps but cannot connect to anything, including the router (using the web configure site). All connections time out. This happens to all the computers connected at the time and the only cure I've found thus far is to restart the router and or modem. If you need any more information please ask. Below is the information of my router, computers hooked to the router, and the network connection coming in.
Connection coming in the house:
Comcast Cable. 6 Meg connection (download)
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WRT300N Wireless-N Broadband Router
Using the latest firmware (0.93.3)
Using DHCP, Laptop1 and Desktop1 have reservations.
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Broadcom internal wireless 'card' running 802.11G
Desktop 1:
Intel NIC
Desktop 2:
Asus motherboard onboard NIC
(occasional) Laptop2:
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I must apologize for one annoyance... the whole post. I skipped step one of posting by forgetting to use that handy-dandy "Search" box located just above this whole post deal, I apologize again. I've found (after searching) that this problem is actually quite common with the 300N and I assume it's a firmware issue, I then assume that Linksys is working day and night, sweating behind a monitor, sleepless and hungry because all they are doing is trying to resolve this issue... then again... you know what they say about 'assuming''.

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I have a situation in a shared office where I would like to be on the LAN so as to be able to share files and peripheral equipment such as printers, but I would like to have my own dedicated highspeed DSL service instead of what is provided and shared by the rest of the LAN. What is the best way to go about this?
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Poor network performance on wired ethernet port and airport

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