Does a mixed N and G network make the network slower for the N-enabled?

Hello all,
I was just admiring my Airport Extreme box after registering it, and I noticed this bit of fine print:
"Speed and range will be less if an 802.11a/b/g product joins the network."
Does this mean that my 802.11g printer makes the network slower for my two 802.11n macbooks?

Okay,
For a follow up: I'm using the "guest" network for all my G-level wireless devices, and the regular network from all my N devices.
Does that overcome the mixed network limitations? It seems like it wouldn't - because the Airport is basically creating two virtual networks out of one network. Or are there two individual networks on the Airport?
Thanks!

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Mixing public and private networks on the same switch

Hello Everyone,
I know this may get some security engineers in frenzy but wanted to know if there is a safe way to mix public and private networks on the same switch.
We have many remote offices that we want to add public wifi and a couple of other services that would be completely outside of our internal network. Each office has a 3750 with plenty of open ports. How can I safely create a vlan for public access on these switches which currently have our internal network on. I have read that people are doing this to save on the cost of purchasing a dedicated switch. Some people are using access lists and one person mentioned creating a private vlan for the public network. I looked up private vlan and it seemed bit confusing.
Is this recommended? If not what would be the safest way to do this?
Thanks Everyone

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How "safe" is relative. If your running just one VLAN on a switch, that's would be the safest (basically the same as mixing traffic on the same wire - separation is done else where).
If you multiple VLANs on a switch, then you need to determine how likely someone might figure out a way to breach the VLAN barriers. (This isn't so easy on newer switches.) If the VLAN isolation is breeched, then you need to examine what does that imply from a security perspective (for example can someone now inject or receive other VLAN traffic).
For most purposes, I don't see mixing public and private VLANs, alone, on the same switch as much of a risk. More of a concern is what can be reached on either VLAN and how well it's protected.

My Apple id was disabled and had to make a new one for iTunes but it's not letting me erase then re download the app with the new Apple ID

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http://support.apple.com/kb/TS1538

Timecapsule stops backup after 5 of 55 gb - no report simply does nothing. possible to se which file makes the bug ?

Timecapsule stops backup after 5 of 55 gb - no report simply does nothing. possible to se which file makes the bug ?

Install the widget to get access to the log.
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I do not type or do English well so let me do some screen captures. I can not stress enough how important Black, White, Grays and Blending is when it come to image processing. Become friends with Multiply, Screen, Overlay and Luminosity blending.....
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In the Itunes Wishlist there is no price button that you can psuh to buy the items. So I cant buy my whole wishlist without doing it all seperatly and I dont know the total price of all the items. Please help!

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Just FYI, new blog post "New and Revised Networking Technologies for Windows Server Technical Preview"

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Thanks -
James McIllece

Hi,
Thanks for your good sharing.
Regards.
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Reinstalling AE and PP due to an error with dynamic link. Where do i find the program install? And tips on how to reinstall without messing things up? last question is, does my recent files and saves work after the reinstall?

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Where do i find the program install?
And tips on how to reinstall without messing things up?
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karianne wrote:
I have allready bought the programs, but need to reinstall AE and PP due to an error with dynamic link.
Where do i find the program install?
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I have an ExportPDF subscription under an old account for which the email does not exist anymore and I have forgotten the password. Therefore I cannot reset the password. I hav created a new Adobe account so how do I get the subscription for ExportPDF m

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Setting up a mixed g and n network on 1st Extreme + newer Express?

I have a first gen Airport Extreme 802.11n (flat white, first one they made before adding on gigabyte ethernet). It is great for my needs. It goes into a cable modem. The Extreme handles all routing and the rest. The modem is just a modem that, BTW, Comcast forces me to rent because I use their phone service and customers cannot buy a separate “Voip” specific to Comcast for use with a cable modem they already own. So a perfectly good Moto DOCIS 3.x modem I own sits idle…)
Anyhow…
I had a first gen Airport Express (very limited in capability). It died. So I got a new Airport Express 802.11n (flat white) about a year ago. I hooked that up mostly to use on a printer and for travel. I made it part of my main network. It “extends” it but, my house/property is very small. A large Wi-Fi network is not needed but, seemed only option to be on network and print.
Recently, I added yet another device to my Wi-Fi network. A small router for an AV receiver. It was, alas, 802.11g. I also have two other g devices and maybe a third and fourth (I’ll have to check, both I rarely use. One is unplugged as I rarely use it and the other is hooked up to an internet TV that is rarely used).
All of these devices worked great until I turn on my old Mac Mini, which I think is also 802.11g. Before that AV receiver router was added, it was fine. But now, Wi-Fi on it is basically gone. Except, when it isn’t!
For some reason, my network has decided that the Mini should connect via the Express. Since other g’s are on that, I think that is the problem. I don’t see how it happens but, sometimes, it connects with the older Extreme. When that happens, it seems to work great! Note, I did try using just he Express in place of the Extreme hooked up to the cable modem for the entire network but, it could not handle it. The Extreme can.
Since both the Extreme and Express are similar as 802.11n Wi-Fi routers except, the Express says something like revision 1 when I look at it on iOS Airport Utility (is it “better” in some way?) I think the solution is telling the Extreme and Express to only accept certain devices.
How can I tell each router to accept only certain devices? The old Extreme has one way (it seems) of doing this while the Express has another. But neither is precisely what I think I need to do. The settings for this are under the Wireless Options button under the Wireless tab in Airport Utility (latest, OSX). But if you can answer this question with any knowledge, you know that!
I’d just buy a new Extreme which, I think, allows radio signal frequency segregation (or whatever this is called) but, alas, these two Wi-Fi routers work great (except for the Mini) and I’d like to use them until one actually dies.

You still refuse to discuss data versus radio signal.
So, I guess that is that. You have no proof to back up your contention as neither do I.
Granted, from the g device to my Express, it is at g speeds. But, I contend, that once that g radio signal is converted back to data only (now at speed of light) inside the Express, the Express sends that data, via the exclusive “Extended network” connection, to the Extreme, at n speed. It has to as the Extreme will only take n speed.
Sure, it is splitting hairs, if I am right. I am not saying I am. But my idea (before our branch debate on g and n signal versus data upon arrival at the Express) is an interesting way to force old g clients to use only one router. But to force those pesky g clients to use the newer simultaneous dual band Express by setting the Extreme to 5GHz g only was a new solution for me. It worked too. In that case, it is not about minute speed gains or losses but simply letting the g clients have their one party at the Express, which can handle them better when part of an extended network with an older, original Extreme.
It is also far better to just have one Wi-Fi router as, adding Airport routers in an extended network, slows things down 60% or less and requires more "data management overheard", according to Apple*.
It is interesting that they said data management overhead and not radio signal management?
Alternatively, using the “Roaming network” method where the two stations are linked via Ethernet, is an even better option.
* https://support.apple.com/en-gb/HT202056

Win 7 PC freeze and block network access for other PC on same switch during windows update from WSUS

Hello,
It's been a problem for me for a long time now, but the last time (today) I found 3 PC on 2 different switches that block all the network on this 2 switches during the update.
I have a Domain with 80 PC with Win 7 (32&64bit) that takes the updates from the WSUS server that is configured on a Win2k8 r2. The system works well from 2 years from now but sometimes cause this errors that make me look like a dummy in front of angry
employees. If one of the PC get freeze , it will cause lost of connection on all the PC on same switch, and i have to find the blocked PC, remove from network, restart switch and hope that they will came back on.
Does anyone experienced this problem? Any help will be appreciated
Thank you!
List of updates for today below

Hi
Thanks for your response, yes I understand that the result is a Broadcast Storm and yes I have the cheapest switch on market :/.
The interest fact is that on one PC, I changed everything and keep only the old HDD and on last updates yesterday it was one of the blocked one too. So this make
me doubt that is something wrong in software on that PC. I don't have any third-part programs except browsers and all have Genuine Win7
The only investigation remained is what happens during the update process?
Is WSUS involved in something?
And another thing is the fact that some of the PC are cloned, but I have carefully changed the SID
Thank you for your support

Does a mixed N and G network make the network slower for the N-enabled?

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