Time capsule to Airport Express to Airport Express

I have a long long flat, and my internet connection is at one end and my lounge to the other.
I built wifi network with my time capsule, then an export express with "network extension" option after a hard reset (AE named corridor) connected to time capsule, then another AE with network extension (without Wifi client option enable because of freeze during finishing configuration), named "lounge", then change of lounge AE to allow wifi client.
It looks that I cannot get full signal even though i'm next to lounge AE...
If I try to configure WDS by reading the book, it's impossible, cannot finish TC configuration because there is no other client, and cannot configure client because I cannot detect AE.... crazy loop.
I there any good user manual to read ??
Bruno
OS X.6.5
TC 500Mo type n
AE 2009
Airport 7.5.2

Try one of the guides from forum expert Tesserax. The link is below.
Unfortunately, WDS is going to place some severe performance limitations on your network. Everything drops to "g" wireless levels with WDS and with 2 devices, a "relay" and a "remote", the bandwidth on the network will drop 75%.
If you could look at an ethernet connection option for the Express devices, that would allow much better performance.
http://discussions.apple.com/thread.jspa?threadID=2422028&tstart=0

Similar Messages

Do I need a cable connecting my Time Capsule to Airport Express if I want to use the AE to extend my wifi network range?

I'm a bit confused by conflicting advice given by my local Apple shop and my internet provider.
My cable modem is plugged into a Time Capsule which I use to access the net wirelessly almost all over the house. The one spot the wireless doesn't quite reach is (of course) where I now need my office and iMac to be.
I thought I could just plug in an Airport Express somewhere in the middle to extend the network's range but the guy at my local Apple shop said the Airport Express would need to be connected not just to power but to the Time Capsule, via a cable. That's fiddly and would involve cables running under the floor or along walls and ceilings, not something I can or really want to do. It's not really practical to try and move the cable connection point either.
My internet provider suggested a netgear wireless extender and said that would only need to be plugged into power. The reviews of the netgear product I found comparing it to Airport Express suggest that the Express doesn't need to be connected to anything other than power either to extend a network range (which was what I originally thought).
So I'm wondering which advice is correct? I've also read that the netgear product isn't all that easy to set up so I'd rather stick with. Apple if it will do what I want.
Thanks for any help out there

I thought I could just plug in an Airport Express somewhere in the middle to extend the network's range but the guy at my local Apple shop said the Airport Express would need to be connected not just to power but to the Time Capsule, via a cable.
I'm sure that the guy at the Apple shop means well, but he is not correct.
While it would be preferable to connect the Time Capsule and AirPort Express using a wired Ethernet connection, the Express can connect wirelessly and extend the wireless signal the same way....IF...it is located where it can receive a good wireless signal.

Apple TV Inference with Time Capsule and Airport express?

I have recently bought an Apple TV 2, which seem to be working fine, however since installing it on my wireless network both my Time Capsule and Airport Express can't be found. Following some fault finding it seems that when I unplug the Apple TV I can reconfingure the TC and AE.
The TC and AE are configured to join my existing network....and have happy sat there for a few years.
I would really welcome any ideas.
Thanks
R

Welcome to the discussions!
It sounds like you have the basic configuration covered correctly.
You might want to check some settings on the TC:
Wireless Mode would be create a wireless network
"Allow this network to be extended" should be checked
The AX should be set to "extend a wireless network"
The "allow wireless clients" box should be checked
In this configuration, the ethernet port on the AX is active so things should work.
A minor point...Although the TC is a dual band device, the AirPort Express is not. Can you make sure that that the Express is connecting to the "main" network on your TC? The "guest" network cannot be "extended".
If you place your laptop close to the Express and hold down the option key while you click on the AirPort icon, some connection information will be displayed. The MAC address of the device that the laptop is connecting to will be indicated. Make sure that that this is the MAC address of the AX, and not the TC.
Another note...If you have not changed the default "main" network, the radio mode is broadcasting 802.11n only at 5 GHz. These higher frequencies are absorbed by walls, ceilings and any obstructions much more quickly than 2.4 GHz signals. So, if you AX is some distance away, you may not be receiving a strong signal for the device at that location.
If you have a signal strength utility on your laptop (the "bars" at the top of the screen are not a very good indicator of actual signal strength), turn off the AX and take a reading to see what kind of signal the Express is receiving where it is located.
Please post back with your results.

HT4145 I want to add airport express. I now have time capsule and I am confuse. Do I setup the express and then time capsule to the express?

I want to add airport express. I now have time capsule and I am confuse. Do I setup the express and then time capsule to the express?

Setup the Express to wirelessly extend the Time Capsule, or vice versa depending on which one is already set up. Or you could use bridge mode which involves using an Ethernet cable or Powerline plugs.

Extending g wireless from Time Capsule using Airport Express...

Hi,
My Time Machine is working well and I have two old Airport Express units that I'd like to use as wireless extenders.
The Airport Expresses are the older type (i.e. only do 'g' wireless) and, according to the AirPort utility, they can't see the Time Capsule. My iPhone can connect OK so the 'g' network must be working.
Am I doing something wrong? Can I use my Airport Expresses to do this?
Thanks!

Thanks for the info. Your iPhone is connecting to the Time Capsule, not either of the AirPort Express devices.
In order to configure the AirPort Express devices to extend the wireless network, your Time Capsule Wireless Mode would need to be set to "Participate in a WDS network". You probably did not see this choice because it is "hidden". Hold down the "option" key on your computer while you click on the selection box to see if it appears.
I'm not necessarily suggesting that you try the WDS setup. It's an older technology that places a heavy bandwidth penalty on your wireless network in return for greater wireless coverage. The first Airport Express that you configure will cut the bandwidth of your network in half. The second will cut the bandwidth in half again. In other words, you are down to 50% of the original bandwidth with the first Express and down to only 25% with the second.
If you are getting acceptable wireless performance with the Time Capsule now, I would be tempted to leave well enough alone until you could add an AirPort Express "n" version, which would allow you to use the "extend a wireless network" setting. This is a much better performing arrangement and much easier to configure.
The WDS configuration is quite complex and frankly difficult for many users. To get an idea of the process, read over pages 42-44 in the Designing AirPort Networks Guide.
If you want to try this anyway, you will need reconfigure your Time Capsule and both Express devices to work in the WDS setup.

Question about Time Capsule and Airport Express co-existence

I have a new 3TB ME182LL/A Time Capsule attached to my wired home LAN, in bridge mode. It works fine both as an access point on the upper floors of my home and as a Time Machine device. I also have an Airport Express, whose function in my network is solely to control my whole-house audio system from ITunes. I don't need, want, or use the wireless networking features of the Airport Express. I just have an audio cable running from it to my stereo, and an Ethernet patch cable connects it to my wired LAN. The network mode in the Airport Express is set to "off". Historically, the Airport Express has worked fine in this wired lan mode. However, I unplugged it at some point while having some initial trouble deploying the new Time Capsule and only turned it back on today. After turning it back on I observed something strange. My speedy wireless connection upstairs via the Time Capsule became slow. And when I launched Airport Utility, it drew a network diagram which showed my Time Capsule as a CLIENT of the Airport Express. In other words, the network diagram showed Internet at the top, then a vertical line down the the Airport Express, then the Time Capsule below that. The correct / desired diagram would be the Time Capsule and Airport express as peers. I connected to the Airport Express and verified that network mode was set to "off" but the incorrect network diagram persisted (as did poor wireless performance) until I unplugged the Airport Express. After I did that, the Airport Utility drew the network correctly, although of course it showed a yellow caution sign next to the Airport Express, since it was down. And my wireless speed / reliability returned to normal. What is going on here?

The automatic setup in the airport utility has changed something.
Is the line down to the TC from the express dotted.. in other words is wireless??
Funny stuff happens.
Please post the screenshots of the 3 pages from the airport utility setup for both airport express and TC..
Make sure wireless is set to off in the express.
Both should be set to dhcp on the internet tab and both set to off bridge mode on the network tab.
So for example the bridge on the network tab.
The summary page can also be a help.
There is a half summary page when you click the item in the airport utility.
There is also a fully summary page, when you hold option key and double click the TC icon for example.

How can I set up a guest WiFi network using Time Capsule and Airport Express extension?

How can I set up a guest WiFi network using Time Capsule and Airport Express extension?

Sorry, but it is not possible to "extend" the Guest Network using either wireless or an Ethernet connection.

Time Capsule to Airport Express extension

I have recently set up a Time Capsule and Airport Express, the latter as an extension, without trouble. Needed further extension and purchased another AE. Although I get a green light on the second AE there is no extension of the WiFi to the area where the second AE is placed. I have re-set up all the components multiple times without success. Using Airport Utility 5.5.1 on a 27" late 2009 IMac, system 10.6.4. In advance thank you for any help.

Ok, here is the basic steps to configure your base stations into a static WDS:
(Note: To facilitate the WDS set up, temporarily connect the remote & relay base stations to the TC by Ethernet during the set up phase, and then, relocate them to the desired locations when complete. Also, jot down the AirPort IDs (wireless MAC addresses) for each of the base stations to be used in the WDS. The AirPort ID and is printed on the label on the bottom/side of the base station.)
Main Base Station Setup - TC
o Click the AirPort status menu in the menu bar and choose the wireless network created by the base station you want to set up as the main base station.
o Open AirPort Utility (located in the Utilities folder in the Applications folder on a Macintosh computer, or in Start > All Programs > AirPort on a computer using Windows).
o Select the main base station, and then, choose Manual Setup from the Base
Station menu.
o Enter the base station password if necessary. If the base station is using the default password of public, you will not be prompted for a password.
o Click Wireless in the toolbar, and then, choose “Participate in a WDS network” from the Wireless Mode pop-up menu. Note: You will need to hold down the Option key in order to get this option on the AEBSn, 802.11n AirPort Express Base Station (AXn), or Time Capsule (TC).
o Click WDS and then, choose “WDS main” from the WDS Mode pop-up menu.
o Select the “Allow wireless clients” checkbox if you want client computer to connect to this base station.
o Click the Add "+" button and enter the AirPort ID of the base station you want to connect to this base station.
o Click Update to send the new settings to the base stations in the WDS.
Remote Base Station Setup - AX#2
o Open AirPort Utility; select the remote base station, and then, choose Manual Setup from the Base Station menu.
o Enter the base station password, if necessary.
o Enter the same network password as the main base station, if necessary.
o Click AirPort in the toolbar, and then, click Wireless. Choose “Participate in a WDS network” from the Wireless Mode pop-up menu, and then, choose the same channel as the main base station from the Channel pop-up menu.
o Click WDS and choose “WDS remote” from the pop-up menu.
o Enter the AirPort ID of the main base station in the WDS Main field.
o Click Update to transfer the settings to the base station.
Relay Base Station Setup - AX#1
o Open AirPort Utility; select the relay base station, and then, choose Manual Setup from the Base Station menu.
o Enter the same network password as the main base station, if necessary.
o Click AirPort in the toolbar, and then, click Wireless. Choose “Participate in a WDS network” from the Wireless Mode pop-up menu, and then, choose the same channel as the main base station from the Channel pop-up menu.
o Click WDS and choose “WDS relay” from the WDS Mode pop-up menu.
o Enter the AirPort ID of the main base station in the Main AirPort ID field.
o Click the Add "+" button and enter the AirPort ID of the remote base station this relay base station will connect to.
o Click Update to transfer the new WDS settings to the relay and remote base stations.
(ref: Pages 42-46 of "Designing AirPort Networks.)

Will Time Capsule or Airport Express resolve my WiFi problem?

Hi
I have a regular 2.4 GHz WiFi router which i am using currently. The problem is there are too many WiFi users around me and it seems my WiFi keeps turning off due to interference. I have tried chaning channels but all in vain. Initially I thought it was a router issue but now I have turned off WiFi completely and using internet on ethernet cable and it has been working fine without any disconnection. So definitely it is the WiFi interference problem. I really want to use WiFi as i want the mobility. Do you think using a time capsule or Airport Express resolve this problem?

It is troublesome. Use ethernet instead of wireless.
Reset the whole network to factory and start again.
Yosemite can see nothing that it does not setup itself it seems.
Factory reset universal
Power off the TC.. ie pull the power cord or power off at the wall.. wait 10sec.. hold in the reset button.. be gentle.. power on again still holding in reset.. and keep holding it in for another 10sec. You may need some help as it is hard to both hold in reset and apply power. It will show success by rapidly blinking the front led. Release the reset.. and wait a couple of min for the TC to reset and come back with factory settings. If the front LED doesn’t blink rapidly you missed it and simply try again. The reset is fairly fragile in these.. press it so you feel it just click and no more.. I have seen people bend the lever or even break it. I use a toothpick as tool.
N.B. None of your files on the hard disk of the TC are deleted.. this simply clears out the router settings of the TC.

Extending a time capsule with airport express twice

Hi,
I have been trying to extend my existing wireless network recently but it never ended up how I wished...
I have one 4th generation Time Capsule (A1409) and two Airport Express 802.11n (1st generation A1264).
All currently have MAC Address base authentication and no security in place for was of testing (security not relevant at this point in time).
When I extend my Time Capsule with either Airport Express this works like a charm, the LEDs are all green and connection works for client devices.
When I extend my Time Capsule with both Airport Express the same applies, everything works.
However what I have found not to works it extending my Time Capsule with one Airport Express and then extending this Airport Express with the second Airport Express. While all LEDs are green and the second Airport is seen in the Airport Utility, I find no client are ever able to connect to it and alway either connect to the first Airport Express or to the Time Capsule. This is an issue I the area I want to cover is pretty big and I need the second Airport Express for the additional reach.
I haven't found anything against this setup, it however appears you can't connect to the second Airport. The Airport Utility would even accurately depict the situation with Airport Express one dotted line to Time Capsule, and Airport Express two dotted line to Airport Express one.
However no connection seam possible to Airport Express two.
I have swapped Airport Express one and two, and in this case Airport Express gets the clients and Airport Express one now extending Airport Express two gets none.
Is this an expected behavior, i.e. should I give up or is there anything I can do about this ?

However what I have found not to works it extending my Time Capsule with one Airport Express and then extending this Airport Express with the second Airport Express.
Apple's "extend a wireless network" feature will only allow you to extend the signal one level, not two. It's possible to have more than one device extending the signal, but each extender must connect directly to the main base station.....not to another device that is already extending the signal.
The Airport Utility would even accurately depict the situation with Airport Express one dotted line to Time Capsule, and Airport Express two dotted line to Airport Express one.
This is an illusion. AirPort Express is "joining" the wireless network.....not extending it. When the Express "joins" a network, it can be used for AirPlay, or a remote printer could be connected to the USB port, but the Express will not provide any additional wireless signal coverage when it joins a network.
Is this an expected behavior
Yes. I can try to look up Apple's support document that explains this if you want more information, but you may likely already have all the information that you need. Let us know.

TIme capsule replaces Airport Express - method for success

I just got a 1TB timecapsule to replace an airport-express as our home wireless internet router - as well as keeping data backed up.
a couple of questions for those who may have successfully done this:
what is the best process to swap out airport express function with Time Capsule?
- (the apple manual assumes too many things go well and provides little detail on actual steps).
- if both devices are on to copy info from AP Express to Time Capsule, I end up with an IP conflict (each wanting to be 10.0.1.1) and I only see one at a time -- one on my home network, the other on the Time Capsule's default MAC-id based network.
- also, the Time Capsule tells me that I should update the firmware. except, since it's not hooked to the internet yet (not configured) it can't actually complete this step....how's that supposed to work?
suggestions, links to the right article in the apple site?
thanks

Hi
I never had very good luck with saving configurations and re-importing on my current Airport menagerie -- so I hadn't gone this route (also figured the two things would be incompatible).
However, I did just as you suggested and the Time Capsule imported the Express configuration readily, and aside from having to change a couple of security settings, rebooted fine.
For some reason, then the Time Capsule started working just like the Air Port Express. But, when I changed the name of the TC from Express back to something 'Time Capsule' and restarted - it was back to the old unresponsive way it was.
- so I went through this re-importing exercise several times.
When things finally stabilized, I noticed that the TC had some ups and downs with my ISP in getting an IP assigned. THis could have been from the ISP acting up the last week or so...or maybe the software?
But in the end - Time Capsule is up running and backing me up wirelessly.
Next trick is to add the Airport Express back into the network so we can stream some iTunes.
Thanks for the idea.
Oh - I guess this might also be of note - I hardwired the TC up to the iMac so I could continue the Time Machine back ups while I figured out the networking issues -- and it went ahead and updated it's firmware. Not sure if that helped or hindered so far - but it's running 7.4.2 now and I'm writing this reply via the TC.
Dave

Airtune Over Ethernet with Time Capsule or Airport Extreme

Can the previous generation Time Capsule or Airport Extreme bridge an ethernet client to an Airtunes network?
Current Setup: I have an aluminum iMac wired to my Time Capsule; currently, I use the aluminum as a music server by connecting to several Airport Express clients over the the iMac's built-in Airport for Airtunes support.
Problem: I have 3-802.11g clients dragging my wifi network. I would like to dedicate the iMac's internal network to the g-clients so I don't have to use compatibility mode for my n-network. However, I will lose Airtunes speaker support when I use internet sharing over the built-in Airport. Airtunes does not appear to support the Time Capsule ethernet client.
Nodes:
-AE 802.11g (Airtunes only)
-AE 802.11n (Airtunes and USB printer)
-1st gen Time Capsule (Internet gateway, "creating network" 802.11 g/n,
-iMac 8,1 (Music server via internal wifi, wired TC client)
-Macbook 4,1 (wifi client)
-iPhone
-Canon MP620 (USB to iMac, wifi to Macbook)

Further to Bob's comments..
A Gen1 TC will be using marvel wireless chip and your 2008 and 2010 Macbook will use atheros and/or broadcom cards.. Just open your system profiler and look for info on the airport. We find the mixture of wireless chipsets especially older draft N and later N products can give very varied results.
The very fact you are linking at 270 and not 300mbps shows some reduction from theoretical max speed.. and really to get over 100mbps with any wireless you need perfect setup.. matched wireless chips etc.
Do a test uploading and downloading a file to the TC to see if the LAN speed is better than internet speed.
In reality I think you are doing especially well.. we see loads of people complaining about slow internet here who are getting less than 10% of the speed they get direct when routed through the TC. And on most occasions the limit in speed is not really going to affect what you do, as the real links to the internet are not that fast.

Trying to set up time capsule with airport exteme. Apple advises to use manuel setup and click on Advanced. Then enter mobileme ID. I did this but Time Machine doesn't display anything on the capsule window.

Can't set up my time capsule on Airport Extreme (updated). Apple instructions are to use manual set up. Click on Advanced tab. Click on Mobileme and enter Mobileme ID and password. I did this. But Time Machine window is blank. Tryed to click on update window after entering Mobileme ID but Airport does not respond (turn of then on)

mickair wrote:
I have been experiencing some networking problems
Welcome to Apple's discussion groups.
I have the latest Time Capsule ("TC"), an old Airport Extreme Base Station ("AEBS") bought in 2007 and 2 Airport Expresses, one bought in 3 months ago ("AE-Alpha") and the other bought back in 2007 ("AE-Beta"). All of them have been updated with the latest firmware.
Based on those dates, the AirPort Extreme is probably flat (as opposed to dome-shaped), making it 802.11n-capable. The Newer AirPort Express is probably an 802.11n-capable model A1264, while the older one is probably a model A1084 or A1088.
I use {the TC's} DHCP function ... to avoid unauthorized use.
This a discussion for another thread, but that's not what DHCP is for.
The wireless setting for it is to participate as WDS Main, but after reading various posts, it seems WDS is a bad idea
With that older AirPort Express you're stuck with WDS unless you decide to replace it with a newer model.
The AEBS is currently setup as being a WDS Relay at the moment
Why a relay? That's only needed if there's another base station "beyond" it that is configured to depend on it.
Since the AEBS is connected to the TC via Ethernet, you should probably configure it as a "roaming network":
http://discussions.apple.com/thread.jspa?threadID=2273124
{The AE-Alpha} connects fine as WDS remote at the moment
I don't have any experience with mixed WDS and non-WDS networks, but since it's 802.11n-capable, you may be able to configure it to "extend" the network of the TC rather than as WDS. Look for a setting on the TC to "Allow this network to be extended".
Physical location:
AEBS in one end, TC and AE-Alpha in the middle while AE-Beta on the other end.
A device such as "AE-Beta" that's supposed to extend a network shouldn't be "at the end" but should be half way between the central base station and the clients that need an extended network.

How do I connect to Time Capsule from a Windows 8.1 machine which is on a Windows domain. I have been able to connect from a Windows 7 machine on a Windows domain to a Time Capsule. Airport utility is not displaying the Time Capsule Win8.1 machine

How do I connect to Time Capsule from a Windows 8.1 machine which is on a Windows domain. I have been able to connect from a Windows 7 machine on a Windows domain to a Time Capsule. Airport utility is not displaying the Time Capsule Win8.1 machine.
I have checked that the firmware has been updated to 7.6.4 . Similalrly the Win8.1 machine has been loaded with the update specified in another discussion.

Firstly how are you connecting to the TC.. wireless or ethernet?
Please open a command window and ping it.. ping by name and by IP address.
If ping succeeds at least by IP it should work.
In windows explorer type
\\10.0.1.1 (or whatever the TC ip is.. that is the default).
Having the airport utility for windows loaded can help the process. As it loads bonjour for windows.
7.6.4 firmware on the TC is useless. It works better on 7.6.1
If the ping does not succeed by either name or IP address yet you have internet through the TC, then your network is setup wrongly. You are have firewalls blocking local IP. Take down all the firewalls.

HT201514 i can't see the time capsule from airport utilities. i did follow "From the Apple menu, choose System Preferences. Choose View Time Machine. Set Time Machine to On if it is off. .....but i couldn't find the time capsule from airport utility.....

i did follow "From the Apple menu, choose System Preferences. Choose View > Time Machine. Set Time Machine to On if it is off "
. .....but i couldn't find the time capsule from airport utility..... why?

Are you using a new 802.11ac Time Capsule - the "tall" one - and are you still using Mac OS X 10.6.8?
You need OS X 10.7.5 "Lion" or later, or an iOS device, to configure an 802.11ac Time Capsule:
http://manuals.info.apple.com/MANUALS/1000/MA1645/en_US/airport_time_capsule_802 11ac_setup.pdf
See page 12.

How to set up 6th Generation AirPort Extreme to cable modem as a wireless router and then connect my 3rd Generation Time Capsule to AirPort Extreme as a wireless extender?

What is the best way to set up my 6th Generation AirPort Extreme (A1521) to my cable modem as a wireless router and then connect my 3rd Generation Time Capsule (A1355) to my AirPort Extreme as a wireless extender? I live in a small 1 story house and I currently have the Airport Extreme connected to my cable modem in the living room and the Time Capsule plugged into the wall in my bedroom. I am able to wirelessly connect to the internet using the AirPort Extreme as my router and I can also do wireless back ups to my Time Capsule. My problem is that my connection seems to be really slow! My 1TB Time Capsule back up is only half way complete and it has been 3 days! My computer has been backing up all day and night for almost 72 hours and its still not even 75% complete. I have backed up to this Time Capsule in the past and it never took this long. I am thinking that when I set up my AirPort Extreme and Time Capsule using AirPort Utility I must have set it up incorrectly or something.
How do I set up my Airport Extreme and Time Capsule for the fastest possible internet speed and back up speed?
Thank you,

AirPort Utility 5.6 works with AirPort Extreme 802.11g base stations.
It works with N version airports.
It will also show details of the AC model but cannot be used for the setup.. mostly.
I purposely got the new 6th Gen Airport Extreme so my internet connection would be a lot faster!
Your network will be much faster when you have AC client directly connected to the AE. Older client will go no faster.. but what is worse.. extend wireless is mixing new and old wireless standards.. guess what one wins.. OLD.. So when you extend wireless.. you have no improvement whatsoever. This whole post is about extending wireless.. so you cannot extend to older equipment and do any better.. maybe slightly better signal although from your comments that isn't happening either.
I would rather not have to use an ethernet at all with the TC and I don't know EOP adapters are!
If you do not use ethernet then you are going to be forced to accept slow speed.
EOP (ethernet over power). Also called homeplug in the US.
http://en.wikipedia.org/wiki/HomePlug
Provides a method of networking over power cabling that already exists in your house.
So what your saying is for the fastest internet speed and back up speed possible I should keep my Airport Extreme plugged into my Modem and keep my TC set up as a wireless extender? Then when I want to do back ups I should plug an ethernet cable from my TC to my MacBook Pro?
To spell this out.
A wireless link to an extended device will go very slowly.. if it is not direct.
So lets say you have a laptop sitting in the lounge.. Your connection goes.. Laptop- - - - - AE- - - - -TC.
That means two wireless links.. wireless has this nasty half duplex and single channel nature.. it can send or receive (Tx or Rx) but not at the same time.
Ethernet by contrast does both at once. It is full duplex.
Wireless can talk to one client at a time.. so if there are multiple items using wireless lets say 4 devices.. then your computer gets a 25% time slice. Since wireless cannot handle multiple simultaneous connections.
Ethernet by contrast can connect multiple computers to multiple destinations at the same time.. all transmitting and receiving at full speed.
When you put all this together.. there are a couple of rules for fast connection.
1. Use ethernet at all times. Where you cannot use ethernet use anything but wireless.. eg EOP (homeplug) at least to try and get rid of wireless.
2. Where you must use wireless use it sparingly and make sure it is never more than one hop.. ie never have an extend wireless (repeater is more usual term). Repeater will cause instant slowdown of 50% and maybe up to 75% just because it is so inefficient.
3. Fastest wireless is 5ghz but it has very short range.. you need to be up close and personal to get it working.
Apple routers however unless you do manual setup I suggest are set to connect to best signal strength not best speed. It will therefore use 2.4ghz at 25% less speed than 5ghz because it is 1db better signal.. this madness means you need to setup manually for the best setup.

Time capsule to Airport Express to Airport Express

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