Currently Being ModeratedOct 24, 2013 12:42 PM (in response to Ivan H)
It is a new one to me.
Are the computers backing up over wireless? Wireless is a shared media.. and the load of a backup is so high all the other computers and devices will expect to suffer a slow down.. but should not disconnect.
Can you test by using ethernet on the computer that backs up.. does the internet still disconnect?
And you can also test by setting a different name for 5ghz.. force the backing up computer if possible to the 5ghz or force it to 2.4ghz.. whichever .. so you can see if one band is affecting the other band.
That should give us something to work on.
Currently Being ModeratedOct 25, 2013 6:47 AM (in response to LaPastenague)
Yes, the Macs are backing up by Time Machine over 5 GHz WiFi, occasionally in 2.4 GHz. In many cases, I notice that when one Mac starts backing up, the Internet disconnects, at least for a while. The Airport Time Capsule connects on WAN Ethernet port from a Belkin Modem Router.
Both Belkn Modem Router and the Airport Tme Capsule has NAT turns on. This is intentional but has been working fine through the last two firmware upgrade.
I don't think it's the WiFi trafic problem.
After upgraded to Mavericks today, I tried backing up a MBP to the ATC by Ethernet. It was too slow that I needed to "Skip this backup", and unplug the Ethernet in order to do a proper backup over WiFi. I guess Airport Time Capsule firmware version 7.7.1 might have some problems.
Currently Being ModeratedOct 25, 2013 1:26 PM (in response to Ivan H)
Double NAT is not ideal.. but anyway that is unlikely to be the issue.
Does the belkin run wireless.. if so connect a computer direct to the belkin wireless and see if it is affected.
Disconnections do seem to be a feature of latest firmware in both the Gen1-4 and Gen5 TC and corresponding AE are also affected.
Ethernet not working.. something weird and wonderful there.
I would try again.. turn off wireless in that computer.. reboot the whole network.. restart in correct order .. modem.. TC .. clients.. and then test the ethernet whilst other computers are doing backup and see.. all sounds awfully windows networking to me.
Currently Being ModeratedOct 25, 2013 5:58 PM (in response to Ivan H)
My 2009 TC did this and my new TC ac does it some times as well. I spoke with Apple and they said it was correct as when updates start their atr a lot of transfering files.
Currently Being ModeratedOct 26, 2013 2:26 AM (in response to LaPastenague)
This 5th Gen ATC didn't have the problem before the recent firmware upgrade. My another 4th gen TC didn't neither.
Transfer speed is good for WiFi and Ethernet using Black Magic with a 2GB file.
Noting that it's not the WiFi or Ethernet disconnected, it's the WAN connection to Internet through a Modem Router, where another Airport Express is not affected.
Another issue, in the morning, when I connect to a news website, it works for a few pages. Then it holds for tens of seconds to 2 minutes, before re-continue the browsing. It's like the routing re-directed through somewhere intercepting.
I can't compare the ATC firmware updated is the same as those downloaded by other people, because the firmware will update to the ATC directly. (While other routers may have the firmware downloaded as a file, before updating to their routers.)
In theory, every ATC may receive a tailored firmware according to the serial number, or other hardware identifier without the knowledge of the ATC owner.
Currently Being ModeratedOct 26, 2013 1:31 PM (in response to Ivan H)
Try using a switch between the modem and the TC.
Or a crossover cable. People are definitely reporting issues in some situations with the WAN connection of the TC.
This is sometimes present and sometimes not. Is the modem also a router or is the TC doing router duties.
A cheap 10/100 little switch can be purchased for a few dollars now.. it can help with timing issues. And the Crossover can help with the auto connection.
See this thread.
Crossover cable to fix issue of connection to ONT or cable modem.
The OP did some careful testing near the end and found either solved the problem.
Currently Being ModeratedNov 1, 2013 12:36 AM (in response to LaPastenague)
Thanks for advice. I tried with a Belkin Gigabyte Ethernet Switch, no help. I tried a CAT5c (crossed) and a CAT6 cable. No improvement.
The problem is not critical because Internet can be re-connect, and the WiFi Wireless LAN is not affected. So, maybe I just wait, or pass it to Apple Online Support and see what they say.
I'll update here again should further progress available.
Currently Being ModeratedNov 14, 2013 10:13 AM (in response to Ivan H)
This happens to me too! I thought I'm the only one with the problem.
Currently Being ModeratedNov 16, 2013 5:08 PM (in response to Koob)
Incidentally, the HDD of the AirPort Time Capsule Base Station also failed. It had been replaced and the new ATC seems to be fine so far and the Internet drop-off problem has gone.
Unfortunately there is no lesson learned because Apple Store said there is no disgnostic tools to test the Airport Time Capsule for its WiFi functionality and its Hard Drive health condition (e.g. S.M.A.R.T. status). So, replacement is the only option.
I wonder what processor and operating system is being used inside the Airport Devices (e.g. Arduino / Raspberry Pi, or an Apple A5 processor, or anything similar to the Apple TV?)
Currently Being ModeratedNov 16, 2013 6:49 PM (in response to Ivan H)
The new AE and TC use a broadcom SOC .. that means it is a full processor and router on a single chip. .it runs at 1100mhz.. ARM based. A9 core.
The previous Generation TC and AE ran a Maxell processor of 1200mhz.. and actually was faster at least on the disk transfer side.
See ifixit for the breakdown of the TC and AE so you can see the processor.
This links to the AE as well.
You can also see the review of the AE Gen6 here.. as well as earlier versions if you set the charts to show earlier hardware.
The new version products are much closer now to the standard AC routers by dlink and Asus than previous ones.. which were more NAS design.