Q: ATC dropping WAN connectivity
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Aug 26, 2014 1:14 PMby LaPastenague,HelpfulYou have done an excellent job finding those two methods to kick the TC back to life.. although how starting a TM backup works I have no idea.
Turning off wifi on the laptop and turning on again causes a dhcp discovery packet to go out to the main router so that is apparently successful. Whereas when it is locked up it is not talking to the modem at all, hence you ping packets are failing.
Most people would just reboot the TC which doesn't prove much at all.
Which port are you using to link TC to modem?? You do not have to use WAN.. with the TC in bridge any port can be used and I would like you to test a couple of LAN ports. Make sure connectivity LED is on when it fails to work.
I definitely get the idea that the latest AC AE and TC have an ethernet timing problem.
What modem are you connecting to?? Can you place a switch in between the modem router and the TC.. just a little 5 port, 10/100 would work fine.
Another simple test might be to unplug ethernet between the TC and the modem and plug it into another port.
You can do another full factory reset.. this time make sure you do all naming to short, no spaces and pure alphanumeric. The modem router might prefer that.
I would plug by ethernet into the main router.. or use wireless if it has it.. and ping the TC IP and see if you get response the other way.
Of course this is serious hardware issue.. even if the test you do works.. you have simply narrowed the problem down.. and applied a work around.. Apple should replace the TC under warranty. Knowing the fault will perhaps help you to confidently explain why it needs replacement. (not that I think the replacement will be any better.. I have seen stories here of people needing to swap a few to get a good one).
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Aug 26, 2014 2:21 PMby poziom-k,> Turning off wifi on the laptop and turning on again causes a dhcp discovery packet to go out to the main router so that is apparently successful. Whereas when it is locked up it is not talking to the modem at all, hence you ping packets are failing.
Actually, when it is locked up, I can ping the modem and everything within LAN (devices are connected to ethernet ports in the modem) but nothing outside.
> Which port are you using to link TC to modem?? You do not have to use WAN.. with the TC in bridge any port can be used and I would like you to test a couple of LAN ports. Make sure connectivity LED is on when it fails to work.
Tried all of them by now. It did not help. LED is on (green) even if TC is locked up.
> What modem are you connecting to?? Can you place a switch in between the modem router and the TC.. just a little 5 port, 10/100 would work fine.
It's Technicolor TC 7200. I know it's low-end but this is what my ISP provides. I don't have the switch just now to put it between TC and the modem.
I will raise a service ticket with Apple. Frankly speaking I think this might be a software related issue (Time Capsule or Technicolor firmware .. or both).
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Aug 26, 2014 2:58 PMby LaPastenague,Ok.. I did misunderstand the LAN use included the modem.
That makes it harder to understand why html packets won't go out though.
Try using telnet as a tool from terminal to an IP address and port 80
eg I can telnet to my ISP.
telnet www.aanet.com.au 80
Trying 203.24.100.73...
Connected to aanet.com.au.
Escape character is '^]'.
If you then type help a heap of raw HTML will arrive.
help
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<title>Unlimited Broadband Plans, ADSL2+, Cheap Mobile Broadband</title>
<meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1">
None of which is useful of course except it shows there is a connection.
Let me suggest a different setup which might be better (and might not).
You can use the TC as a dhcp server in the network without needing to double NAT.
I have described it here.
The Technicolor firmware tend to be poor.. if you can bridge it then I would definitely do that.. and use your TC as a router.
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Aug 26, 2014 3:03 PMby Loner T,There is another thread which has similar issues - MacBook Air loses connection to internet but not LAN and the poster there also has a Technicolor, but also has a TP-Link involved.
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Aug 27, 2014 10:34 AMby poziom-k,Telnet doesn't work for me. I've also tried setup where TC is the DHCP server and it doesn't help.
I have the same ISP but in a different country (UPC in Poland) as the person from another topic. The firmware I have does not allow switching the modem to bridge mode. I have the feeling that the issues are caused by Technicolor (since in the other case, the user has TP-LINK instead of TC) and replacement of TC will not help. All of the symptoms seem the same in mine and the other case.
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Aug 27, 2014 11:41 AMby poziom-k,I can do it, but I don't see any reason that it would change anything, since if I connect through WiFi to Technicolor - everything works fine. I guess connecting through a cable will make it even better. When I stated that I have tested another AP, in my original post, I actually had Technicolor in mind.
I experience problems only when connected through ATC - both wifi and cable.
Could it be that some settings on Technicolor cause my MB connected through an additional network device in the same network to get locked up ?
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Apr 2, 2016 6:05 AMby AndreasSt,This issue is not specific to the Time Capsule. More likely it's a bug of the cable modem used.
As described in the other thread, a combination of Technicolor TC7230 and a AVM Fritz!Repeater 1750E as access point leeds to the exact same results.
It remains mysterious to me why the TC7230 stops routing the traffic of my wirelessly connected (to the 1750E) iMac to the Internet.
Enabling NAT on the Time Capsule should fix the issue for you. Of course, you will need to connect your LAN devices also to the LAN-side of the Time Capsule.
