IMac stopped accessing hotel internet

[moneylab]

We're on an extended hotel stay and my iMac no longer connects to the hotel wifi. It had been working fine for the past two weeks; but this am it just won't connect. The diagnostics say I'm connected to the wifi, but not to the Internet. Of course, I'm unable to access the hotel wifi log on page also.

I've turned the wifi on the iMac on/off; restarted the Mac; renewed the ip lease (twice) to no avail.

We can access the wifi just fine with our iPhones and ipad; only the iMac seems to be affected.

It acts like it's hitting the hotel router okay, but can't get past it to get out to the net. Any suggestions as to how to fix this? I desperately need to get it online.

 

[S.B.G]

Have you checked with the hotel front desk to inquire about the Internet? Perhaps they cut you off, or perhaps it's down right now.

 

[moneylab]

Have you checked with the hotel front desk to inquire about the Internet? Perhaps they cut you off, or perhaps it's down right now.

The internet's working fine; our ipad and phones access the wifi okay. It's just the iMac that won't connect.

 

[S.B.G]

The internet's working fine; our ipad and phones access the wifi okay. It's just the iMac that won't connect.

It's also possible they blocked the MAC address of the iMac. It couldn't hurt to call the front desk and ask.

 

[jerwin]

Apple Support Document:

If your Mac doesn't connect to the Internet over Wi-Fi

 

[moneylab]

SOLVED (for the moment) - my iMac suddenly re-connected and I have Internet access again. Still wish I knew what happened and why I couldn't get it resolved through troubleshooting. We travel a lot and this has happened before on occasion. Thanks for your replies.

 

[ispcolohost]

I've had this issue at Hyatt properties with my MBPr from time to time. If you open a 'terminal' prompt and run 'ifconfig' you should be able to see your computer's physical network card address, typically on the en0 interface. To verify, go into the network properties, wifi, then the "Hardware" tab and look for the "MAC Address". For example, it may be something like 8c:85:90:12:34:56. Then in the output of ifconfig in terminal, find that same address listed after the word 'ether':

en0: flags=8863<UP,BROADCAST,SMART,RUNNING,SIMPLEX,MULTICAST> mtu 1500
ether 8c:85:90:12:34:56
inet6 fe80::1234:5678:0987:d03f%en0 prefixlen 64 secured scopeid 0x8
inet 10.199.30.154 netmask 0xffffe000 broadcast 10.199.31.255
nd6 options=201<PERFORMNUD,DAD>
media: autoselect
status: active

Anyway, now that you've found the correct network card, perhaps en0, perhaps different, you can run a new command to override the hardware MAC address for the duration of this bootup:

sudo ifconfig en0 ether 8c:85:90:12:34:57

in that case I've taken the original and altered the final digit by one. It's very unlikely to conflict with any other real computer on the same network so relatively safe.

 

[padams35]

The last time I had this issue the problem was an incompatibility between the Hotel's internet login/access system and Stealth Mode (a MacOS system firewall setting). That particular location had an html internet login page in addition to network name/password.