Can't find server

3 comuters connected wirelessly. I can plug one in to TC to answer your second question, but it's a little hard to check since the problem is so intermittent. It's working right this second, for example, and sometimes it works on one computer and not on another at the same time.

TC is using version 7.6.3, but I don't recall upgrading the firmware any time recently - not in the last few days when this issue started anyway. TC can't upgrade its firmware by itself, can it?

I'll roll back to 7.6.1, and will see how that goes.

Time Capsule is 2 weeks past my 90 days free phone tech support 😉 (found out when ringing Apple today) so about 3 months old.

Model is A1409.

Thanks.

Update: iMac now plugged up to TC directly, and I've rolled back to 7.6.1 firmware.

Will see how this goes.

Update:

Partner and I both got home from work and surfed the net for about 15 mins until the internet stopped working on both MacBooks pretty much at the same time. Apple Mail also couldn't find server, and iPhones (on same wifi network) also give the message "you are not connected to the internet". Checked iMac (plugged directly into Time Capsule via ethernet), and it has the same problem.

I'm currently writing this from my iPhone on 3G, and now it's the weekend so I'm extra annoyed.

Any ideas?

I just restarted TC...no luck. Restarted iMac (plugged up to TC)...no luck.

Modem is ADSL provided by Optus - Sagem Fast 1201 V2. It is working well as far as I can tell. When I plug the computer directly into the modem (bypass router) it works.

The TC is the only router.

What are the v6 and v5.6 utilities? What do they do exactly?

Thanks?

Didn't mean to say thanks with a question mark, sorry. I spoke too soon. Just plugged iMac into modem so I could get the 5.6 utility, and after working for a minute, the internet dropped out again. Lights on the modem indicate that it's functioning properly, but since the internet isn't working I guess there is something wrong with the modem.

TBC after I call Optus for troubleshooting.

The modem has been great for the time that we've had it, but it is about 4 years old now.

I thought the Sagem is a modem only and can't work as a router...? I will troubleshoot the Sagem on its own (possibly with Optus's help) and then try your suggestion if I don't have any help.

Thank you, LaPastenague.

I am currently plugged into the Sagem via ethernet, and the net is working. So the phone line goes from wall to modem, and then modem connected to computer with ethernet. Should it not work that way? Anyway, but as I said it's dropping out intermittently now.

I'm in NSW. So you recommend buying a new modem straight away, not troubleshooting it first? I'm assuming if I'm having the same issue when not using TC (or any other router) at all then there's definitely something wrong with the modem?? I'm currently on hold with Optus with up to 30 mins wait.

There is a chance that I set up TC incorrectly. Networking (all of this) really makes no sense to me. But if it has been the same setup for 3-4 months, wouldn't I have had problems the whole time - not just the past 3 days?

Yeah, I didn't expect Optus to admit any fault, but hoped they'd help troubleshoot the modem. They basically pointr out how old it is and suggested I get a new one. They said it could be the phone socket and suggested plugging into another one in the house to check. The Netgear modem you mentioned is actually one they support, so I will grab one tomorrow I think. $80 from Optus including shipping, or I can look somewhere else. Anyway, thank you for your help. Fingers crossed the new modem solves the problem! And then I'll fix my other router settings as per your advice.

Update:

Woke up Saturday morning, used the net to price modems online before heading out the door to buy one. Internet worked for a few minutes and then went away - same old story. I grabbed the house phone to call an Optus store to see if they had a modem in stock, and guess what...no dialtone, just a lot of static. I called Optus, they did a line check, and finally (!!!) they found a fault in the phone line.

After days of dealing with the internet going in and out, troubleshooting one computer, then the network (TC first) and finally blaming the old modem...it was the phone line all along! I had no reason to think it was the phone line because every time I picked up the phone during this mess, it worked perfectly. I was pretty annoyed when they told me it would be fixed any time between Saturday and the end of March 😠 but they did it today 😎!

So, LaPastenague, just wondering if you can point me in the direction of something online that tells me how to fix the double NAT situation so it doesn't cause problems in the future. I don't want you to write me a manual or anything, but if you can send me link that will help, it'd be much appreciated. Or, if it's too complicated without knowing a lot more about my existing setup, just let me know and I will investigate myself...or phone a friend.

Anyway, thanks for your help.