Mini Server losing ethernet connection to FiOS ONT

I have Verizon Fois which has worked flawlessly with either a Verizon supplied Actiontec router or a Time Capsule connected to the Verizon ONT (optical network terminal) ethernet.
I recently bought a mini Server to connect to the ONT directly to be my NAT, router, file server, etc. The mini can use DHCP to initially get an IP via DHCP, but it will lose it over time and revert to a self assigned IP. I have worked this with verizon tech support and their network engineers say that the ONT is fine but has only a one-way connection to the mini when it is in the bad state. I have used a tried and true cable which is not the problem. The mini has had one trip back to a genius bar and they reinstalled the OS and could not reproduce the problem.
I am about to resort to chalking it up as a weird mini ethernet hardware problem unless anyone has another idea. As I see it my next plan of action is to ask for a mini replacement to see if it helps.
Thanks for any ideas or suggestions.

Just like the KB said, the only way to get reconnected is to turn AirPort on and back off.
http://yellowmug.com/blog/2006/06/26/airport-problem/
It may also be in the developer tools. I can't remember where I got it. After downloading it. I modified it for my purposes and then had it launch when I logged in (Startup Items). It did the job, but every time the connection goes down, you do have to let the script do its thing, interrupting your work. However, at least it does it automatically.
I finally fixed the problem by getting a new Santa Rosa MacBook Pro. Works like a charm.
Mac OS X (10.4.9)

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My new Mac Mini suddenly losing Internet connection periodically.

It just seems like "out of the blue" I'm suddenly losing the Internet connection (when browsing) then eventually it returns only to lose connection again. Have not had this problem before, now suddenly happening all the time. My iPad never has this problem (it's on the same wifi network), so it's got me wondering is the problem "in" the Mac Mini? Thanks for any information you might be able to supply.

I have had similar troubles with my Mac Mini for several months now and have tried all of the above plus more (including taking the thing apart to make sure the antenna wire had not come unmoored). I can set the MacBook Pro on the same desk with the Mini and its Airport connection will remain strong and steady while the Mini waffles and stalls, on and off.
I have pretty much concluded that the fault lies with Mini's Airport, the card itself most likely but perhaps some other factor. The past few weeks I have been keeping the Mini online by sharing the MBP's Airport connection via ethernet. This works well (and further points to Mini's Airport as the culprit) but is is rather cumbersome since I am constantly disconnecting the MBP for road work.
At this point I am thinking that the better solution would be to add an Airport Express to the network, connecting the Mini to wifi via ethernet. At this point I am certain, based on experience, that no amount of permission repairing, user account switching, new network creating or network rebooting in whole or in part will fix the problem.

Mini Server, bridging Ethernet and Airport ?

Hy there.
I´ve got a Mini running 10.5 Server with Ethernet en0 and Airport. To set up for testing I´m want to set the Mini as a wireless bridge. With NAT and the gateway assistant, I`m only apple to set up routing with a block Airport -> Ethernet. In detail:
Ethernet 192.168.100.x
Airport 192.168.1.x with NAT and DHCP
Clients connected to Airport aren`t able to go to the 192.168.100.x network.
Is it possible to bridge the two nic´s?
Aggregation won´t work on Airport.
Thanks for reply.

The network configuration details and the goals aren't entirely clear (to me) here, so I'm going to shot-gun several answers here. I (also) don't know how experienced you are with IP networking and terminology; apologies in advance.
"Bridging" occurs at layer 2 and is relatively comparable to a network cable or such and thus arguably transparent to network traffic (you can't "see" a bridge at the network layer any more than you can "see" a hunk of network cable), where "Routing" is layer 3 and typically involves IP addresses and a routing stack. Bridging doesn't involve an IP network address for the intermediate device, where routing does.
Your Mac Mini here lacks bridging capabilities, and would be either a non-routing host or (with two NICs and a requirement to route traffic through) an IP router.
Various Airport devices can be configured as routers or as bridges. The default configuration is the former; as a WiFi router. If you want to run the Airport as a bridge, then it won't have an IP address. Various folks will refer to a WiFi device set up as a bridge as an Access Point, as well.
Depending on the subnet configuration (and I will here assume you are using two subnets here, the 192.168.1.0/24 and 192.168.100.0/24 subnets) and if you're using your Airport as a router in 192.168.100.0/24, you'll need to set up the Mac Mini or another IP router-capable device in 192.168.1.0/24 as the default IP gateway (default router) within the Airport configuration. That default gateway (router) will itself need a path to the wider Internet, and routes to other subnets.
Getting a Mac to function as a router and as a network gateway (and with NAT and firewall) is possible, but you'll have to set up the default routes appropriately. It's generally (far!) easier to use an external box for this purpose; a dedicated firewall and NAT and router box. It's also something I typically prefer; having users and software configuration changes and the usual sorts of activity found on a Mac OS X or Mac OS X Server occurring on a firewall can risk (accidentally, unintentionally) open up a remote exposure.
If you want to use link aggregation with Mac OS X Server, then you'll usually need a network switch capable of IEEE 802.3ad link aggregation. AFAIK, Airport doesn't provide link aggregation.
Apropos of nothing else in this reply, if you're planning to eventually use VPNs (tunnels), I'd also suggest getting out of 192.168.0.0/16 address range (and into 10.0.0.0/8 or 172.16.0.0/12, per RFC 1918), everybody uses that, and various tunnels need unique subnets both locally and on the target end of the connection.
Here's an intro to [networking, routers and firewall|http://labs.hoffmanlabs.com/node/275] pieces, and a previous discussion of [IEEE 802.3ad link aggregation, BGP and such|http://discussions.apple.com/thread.jspa?messageID=9141545] here in the forums.
It's my general preference to block access to the LAN with a dedicated firewall/NAT/router box for the reasons described above as well as other reasons; that box can act as the default gateway for all subnets, as well.
If I've entirely missed your question with the above answer(s), hopefully the above can help us get a little closer to your particular goal and an appropriate solution.

Losing ethernet connection

I am losing the ethernet connection every time I close the lid on the macbook and then reopen it later. I have to wait about a minute then unplug and replug the cable to get its status back. Does anyone know how to avoid doing this?
thanks,

One thing that can work, try this, please ignore the exact symptoms and connection and Hardware types, it's worked for many others than the stated...
http://docs.info.apple.com/article.html?artnum=304482

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Mac-mini looses wired ethernet connection

Hey out there.
I know this topic has been covered, however i could not find a solution that works for me.
Last week I bought a intel mac-mini and got home and happily connected it to my wireless router (this all went fine)
I am using a Asus wl500g router.
However, once i updated all the software via the wirless and moved my router closer to my mac-mini.( i am using a 1 meter Cable) it tell's me that my etherent cable is not connected.
So I swapped out my ethernet cable with the one connected to my NAS which is connected to the same router and it is still did not work, Even though it functions fine on my NAS which also had two gigabit ports.
After messing with the setting on my ethernet connection i disabled IP ver 6 and did a renew and all of sudden i had wired ethernet connection.
So i thought that i fixed it. However after the next reboot, the wired connection did not connect again and it continued to tell me that there was not cable attached. I used the same cable connected to the mini to test on my macbook (also intel) and it worked just fine. I also tried swapping the cables from my mac mini and my nas again. My nas device connected with the cable that did not work for the mac and ofcourse my mac told me that i have no cable attached.
I then tried to put my mac to sleep and woke it up again and bam.. i had wired ethernet!
Great, however after another reboot, i have not been able to get connection again or since. this has been for a few days now.
SO what i know is this:
The cables are the right length.
The cabels work!
it should have nothing to do with the fact that my router is 100baseT cause my nas connects to it just fine which as i said also has two gigibit ports.
THe issue is on the mac side that is forsure!
I took my mac back to the store where i bought it and they tested it and they said that is fine, they must be connecting to some airport.
So, could some please tell me what i need to do to get a constant connection between my mac-mini and my router please.
there must be a way of getting it work as it works on and off at random times.
I have been a happy mac user for a few years, so this kind of issue is really puzzling, why does it not just work like most other things MAC?
Buying a airpot extreme is not an option in my books, as the rest of the my mac network functions just fine on my current router.
Looking forward to some inlightenment.
thanks
Dino

Hallo dinodam,
I am having exactly the same problems you are. Everything worked fine for a few months and now I copy you problem identically. Again, the shop in Frankfurt says everything works fine. All my other PCs and cables work.
I have been quietly going around the bend. Every now and again I have a connection for a short while and then it is gone. "Kabel nicht verbunden".
This tends to suggest that the problem lies either in the OS or the hardware, nothing external. Surely someone at Apple must be aware that there is an issue? The time I have wasted on this issue more than covers the cost of buying a new pc. Unless someone has any bright ideas, that is what I shall end up doing and send Apple the macmini back.
I should be grateful for any suggestions how to resolve this.
Thanks,
dilystagi

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Since yesterday my iPad mini keeps losing the wifi connection, especially when playing video on YouTube. Stopping the You Tube app and starting Safari seems to restart it temporarily but only for a short while. I've tried reinstalling the YouTube app, but it then happened playing You Tube via Safari. I've reset my router and deleted all cookies, browsing history and rebooted the iPad. Even done a complete new install of the iPad after the iOS update failed (grrrr) and deleted everything but this issue was happening before the update and after the rebuild.
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Is anyone being bothered by constantly losing ethernet connection?

it's driving me insane. i'm in full-bore troubleshooting mode.
any clues i can and/or should follow?

it's losing it.
the cable guy has been here twice. at one point he was playing around on my computer waiting(again) for it to happen (again and again) and he turned to me and said "How can you stand this? It's driving me crazy now too."
then he talked with the Apple specialist at the cable place who said i had to contact apple because i shouldn't be losing ethernet, and he knew i was. so i contacted apple who told me to update to the current os (10.5.11) and I told him I was afraid to and he knew I had a previous complaint about 10.5.10 and was back on .8 just for my own peace of mind, so i DID update without incident and STILL I keep losing Ethernet. It's ruining my life now. not just bothering me.
So, I will call Apple monday, after researching users between now and then so I don't feel alone or know that i am alone for the next troubleshooting session. i have to get to the bottom of this because my warranty expires in Nov (I think...or maybe Dec.) and I am WAY TOO FAR from an Apple Store to take this lightly. I bought a laptop just because of the problem I had getting my desktop iMac fixed, which I miss, because it is CRT and as a graphic artist that is important to me and yet it is still broken.
The cable guy said "Worse comes to worse, if you go wireless, it won't matter any."
however, that might be a last resort AFTER my warranty expires and I'm stuck with a bum ethernet plug on my machine...which might be the case.??????

Mac Mini keeps losing network connection

Hey,
I have a Mac Mini 1.1 running 10.6.8, which I use as a headless media server at home. It connects to my BT Infinity 3 router via ethernet cable, and the Wifi is disabled. I connect to it remotely via dns through dyn.com. Other products sharing the network include 2 iPhones, an MBP and a windows laptop.
The problem;
Every few days, the Mac Mini will dissapear from the network and cannot be reached either through the shared devices menu or through Remote Desktop. Only a hard reset of the Mac brings it back. Can anyone help me identify what's causing this problem?
Thanks,
Tim

This normally happens when your neighbor and you are using the same WiFi channel. Try changing the default channel in System Preferences -> Network.

MAC Mini Server Startup Problems

Help!
MAC newbee. Just bought a new MAC Mini Server, got monitor connections in place; have wireless keyboard and trackpad; at startup I get the white screen with apple background then followed by a screen with a graphic with some rounded-corners rectangle; it just sits there with the rotating gear, rotating forever.
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Below is my the answer to a previous helper. Yes, you need to start with USB before setting your devices to work with bluetooth. Thank you jut the same. Best, Larry
----------------my response-----------
Thanks. You are right. I bought a cheap USB keyboard and mouse and have been doing fine ever since. All's well and working.
There is a rather subdued mention of the need for an initial USB connection in the documentation, however, you'd think that sales--that department is a bit on the weak side--would have said something to me while putting my order together for bluetooth devices only.
Oh well....have been doing fine ever since...all set up. Again, sincere thanks.

Mac Mini (late 2012) Ethernet Losing Connection

Problem: Throughout the day, my Mac Mini loses it's ethernet connection for several seconds. Using iStat Menus the network tab shows that the ethernet connection is "Yellow" for "Not Connected" and I don't have an IP from my router. The same thing is reflected within System Preferences -> Network. This only lasts several seconds, but if I am streaming something or trying to stream a large file across my private network it can cause issues and be rather annoying.
I've already confirmed that it is not a router issue or a port/switch issue. I've tried different ports and rebooted the router several times and even updated the router firmware, regardless the Mac still occasionally drops connection. No other computer on the network including a Macbook Pro exhibits this behavior, it is only this Mac Mini that is doing it.
All my Ethernet settings are automatic, and I've tried setting everything to manual as well to no avail. The computer isn't over heating, temps range anywhere from 40C to 75C underload.
I am not sure what is causing this. I haven't run into this problem before and it JUST started recently.
Anyone have any ideas? Any solution? Any additional steps I can test for trouble shooting? My Mac is all updated as well.
Router I am using is ASUS RT-N56U with a Trendnet 5-port switch.

Hello, might try this...
Make a New Location, Using network locations in Mac OS X ...
http://support.apple.com/kb/HT2712
10.5, 10.6, 10.7 & 10.8…
System Preferences>Network, top of window>Locations>Edit Locations, little plus icon, give it a name.
10.5.x/10.6.x/10.7.x/10.8.x instructions...
System Preferences>Network, click on the little gear at the bottom next to the + & - icons, (unlock lock first if locked), choose Set Service Order.
The interface that connects to the Internet should be dragged to the top of the list.

Can't reach network video server on Mac Mini's USB Ethernet Adapter.

I am trying to connect an IP video server to my Mac Mini's USB>Ethernet adapter. The server works fine on the built in Ethernet "en(0)", but is unreachable on the USB>Ethernet adapter network"en(3)".
Is this a subnet issue? I don't know much about networking obviously, but I think I just need to find a way to designate the proper port to look on, because the Mac is looking on the built in Ethernet only when I specify http://192.168.0.90:80/
The en(3) is configured for DCHP.
I could just hook the server up to the built in Ethernet, but then I'll have to run new and very long cat 5 cable.
I'd love to hear any ideas on how to get this working.

The Network Settings for the USB>Ethernet port are:
IPv4: Using DHCP
IP Address 169.254.33.152
Subnet Mask: 255.255.0.0
Router: (none)
DNS Server: (none)
Search Domains: (none)

Slow Ethernet on Mac mini server

Set up:
Mac Mini Server - Mid 2011 - i7 Quad 2GHz - 8GB RAM - OSX 10.7.3
13" MacBook Pro - Mid 2009 - Core 2 Duo 2.53GHz - 8GB RAM - OSX 10.7.3
Both wired in to Virgin SuperHub Switch/Router and physically next to each other
Hi All,
Bit of a strange one this but I recently upgraded my cable connection to 100MB line from 50MB. As everyone does, the first thing I did was to test my new toy on speedtest.net. I was overjoyed to see my MBP fly directly up to 104Mbps dl speed. However, my Mac Mini Server peaked out at somewhere around the 60Mbps range. At first I thought it was flakey network connection and so duley tested at random intervals during the day, one device after another but always with the same (or similar) result. As stated above the kit is physically next to one another and both on Ethernet. I have also tried swapping over LAN cables, difference ports and new cables all together but no change. Next I tried to change the MTU settings on my Mac Mini Server but again no improvement (plus the MBP is still on the standard Auto config 1000BaseT Full-duplex with a standard Ethernet MTU of 1500.
The hardware spec states that they have slightly difference NIC's installed but the MAC Mini Server is the newer of the two and all software is up to date. Any idea's pls?

Hi BD, thanks for responding again.
I've disabled TM while I test and I dont think Spot light is doing anything. I've also run the test now tens of time at all times of the day.
RE console, i've looked and nothing jumps out (although im no expert there)
Re connection priority, yes top of the list, infact diabled everything else while I test also.
One other point, the Mac Mini Server does have the server addition of Lion OSX, sorry i didnt make this clear earlier. I normally only run the TM, Web, Profie Manager and Files sharing servivces - no are them are under much load at the moment although, again, I even disabled all of these while I test and no change to the result.

Can I connect my Time Capsule directly to the Verizon FIOS ONT?

Hi
I'm getting rid of Verizon FIOS TV and phone, but keeping FIOS Internet.
My ONT is a TELLABS 612A, the ethernet port is active and connecting to the Verizon router without a problem. The coax is gone -- toast. The Time Capsule is connected to the Verizon router and I'm running my wired and wireless network off the Time Capsule. I want to completely get rid of the Verizon router so that I'm no longer paying a router rental fee.
So I want to either:
1. Connect the TC directly to the ethernet port of the ONT and use the TC as the router.
2. Buy another ac router as a bridge. Obviously this option seems redundant.
I'm interested in the feasibility of option 1 and to hear from people regarding the setup they used.
For option 2 I'm similarly interested in hearing about the setup and replacement router they used.
Many thanks
Simon

Ok.. this is where life gets more difficult.. and you might need a network expert to look at things.
I need numbers and screenshots.. please plug a computer directly into the ONT.. do you get internet on that computer. If so give me the whole network screenshots from the ethernet preferences.. showing me IP, subnet, gateway and DNS.
Then plug in the TC and give me the screenshots from the WAN side of the TC including the same info as above.
Do not blank out anything.. you are on a dynamic IP so it will change when you swap things around.. but I need the exact values to work on.
I can tell you the Time Capsule can have issues with fibre connections. The reason is fairly complex but it has to do with Apple being too purist in their network design.. and the reality being much messier and needing routers to be far more flexible than Apple allows. (The gateway of the connection is not contained in the subnet provided with the IP).
Or does your connection use pppoe? Some fibre connections do and Apple has definite issues with PPPOE.
Anyway some things in the end simply prove too hard.. that is the point of the test.. if it is too hard.. stick to the current setup and live with it.
I have the same issue with ADSL.. every other router works fine.. but I cannot use an apple router as the main network router. It just is a failure on the PPPOE and does not allow sufficient settings to comply with the ISP requirements.

Macbook/mac mini can ethernet connected[crossover] with another PC-windows?

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Mini Server losing ethernet connection to FiOS ONT

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