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 Macs and the internet
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| Gordon |
Posted on 03-08-2010 05:50
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 Member Location: Lake Kerkini, Greece Posts: 1097 Joined: 02.01.08 |
Hi, Is there anybody out there who understands Macs, my 6 month old MacBook Pro is refusing to access the internet  . It worked with the ethernet cable at the hotel but would not access the WiFi. Now I have started work and moved into an apartment and it won't work ar all. They have WiFi at the school and an ethernet cable in the apartment. In the apartment the diagnostics bit says the internet is connected and says it has a IP address etc, but I cannot access a single web page. In the school they know nothing of Macs, this might apply to the country as a whole, but the computor guy cannot work out why my computor won't access anything  .
Get your Diptera Mug etc at The Thinking Man Shop http://www.cafepr...om/TTMshop Gordon |
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| ChrisR |
Posted on 03-08-2010 08:56
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 Administrator Location: Reading, England Posts: 7699 Joined: 12.07.04 |
I don't have much experience with Macs but from the symptoms it sounds like you have connected and got an IP from the DHCP server but it hasn't given you the network's DNS servers that translate URLs to IP addresses. But if the tech at the school is scratching his head and he has hands-on with the Mac then it's going ot be hard to do it remotely. The procedure to test things should be to use PING to ping various network IPs and URLs to see how far the connection goes. If you can't ping anything outside your laptop then it hasn't got a connection but if it can ping a server on the network then you have a connection. I would speak to the internet provider and get from them an IP on their network and try pinging that ... if you can then you have a connection - if not then you don't. You might just have to set up the LAN or WiFi connection with the appropriate DNS servers to get it to work 
Manager of the UK Species Inventory in the Angela Marmont Centre for UK Biodiversity at the Natural History Museum, London. |
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| Roger Thomason |
Posted on 03-08-2010 09:16
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 Member Location: Mossbank,Shetland Isles. Posts: 5247 Joined: 17.07.08 |
Failing all of the above...It will make a beautiful Paperweight.... Regards Roger....Your helpful online Tech Buff. |
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| Gordon |
Posted on 04-08-2010 08:25
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Member Location: Lake Kerkini, Greece Posts: 1097 Joined: 02.01.08 |
Thanks Chris, Certainly at the apartment language would prevent such a discussion, otherwise my ignorance of the technology - ping???? is a problem. Get your Diptera Mug etc at The Thinking Man Shop http://www.cafepr...om/TTMshop Gordon |
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| ChrisR |
Posted on 04-08-2010 08:59
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Administrator Location: Reading, England Posts: 7699 Joined: 12.07.04 |
Ahh, yes well ... now my knowledge of Macs is going to let us down because I talk PC-speak. You will have all the necessary tools (like the ping program) on the Mac but I have no idea where it is. Without being able to speak to the internet provider's help line it's going to be hard but all the info is out there on Google. If you are writing here I assume you have access to the Internet somewhere so just look around and try out the tips on sites like: Dummies Guide Apple Communities MacBook Pro downloadable user's guide etc. You are using a MacBook Pro, which after a trip to WikiPedia seems to run the OS X 10 (or later) operating system. If you Google using the name of your internet provider (start with your home connection for instance) and the words "DNS server address" then you should find some discussions where people say what your DNS server addys are - you will probably need these addresses when you set up your connection. As I say, if you have connection but you can't see any URLs then it might be missing the DNS server numbers - they are specific to your provider. Let us know how you get on
Manager of the UK Species Inventory in the Angela Marmont Centre for UK Biodiversity at the Natural History Museum, London. |
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| Gordon |
Posted on 06-08-2010 09:57
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Member Location: Lake Kerkini, Greece Posts: 1097 Joined: 02.01.08 |
Hi Chris, Yes I have very limited access at the moment. Here is the result of my diagnotics check if it helps. The first data is what the computor tells me when I go to location for info about a connection. But something is wrong. Location Status = Connected Ethernet is currently active and has the IP address 192.168.1.2 Configure IPv4 = Using DHCP IP address = 192.168.1.2 Subnet Mask = 255.255.255.0 Router = 192.168.1.1 DNS Server = 192.168.1.1 Search Domains = Home So I pinged the IP address above PING 192.168.1.2 (192.168.1.2): 56 data bytes 64 bytes from 192.168.1.2: icmp_seq=0 ttl=64 time=0.055 ms 64 bytes from 192.168.1.2: icmp_seq=1 ttl=64 time=0.052 ms 64 bytes from 192.168.1.2: icmp_seq=2 ttl=64 time=0.058 ms 64 bytes from 192.168.1.2: icmp_seq=3 ttl=64 time=0.058 ms 64 bytes from 192.168.1.2: icmp_seq=4 ttl=64 time=0.055 ms 64 bytes from 192.168.1.2: icmp_seq=5 ttl=64 time=0.051 ms 64 bytes from 192.168.1.2: cmp_seq=6 ttl=64 time=0.051 ms 64 bytes from 192.168.1.2: icmp_seq=7 ttl=64 time=0.058 ms 64 bytes from 192.168.1.2: icmp_seq=8 ttl=64 time=0.056 ms 64 bytes from 192.168.1.2: icmp_seq=9 ttl=64 time=0.074 ms --- 192.168.1.2 ping statistics --- 10 packets transmitted, 10 packets received, 0.0% packet loss round-trip min/avg/max/stddev = 0.051/0.057/0.074/0.006 ms Then I pinged other addresses using web names not IP adresses = not so good. Ping has started… PING 192.178.1.2 (192.178.1.2): 56 data bytes Request timeout for icmp_seq 0 Request timeout for icmp_seq 1 Request timeout for icmp_seq 2 Request timeout for icmp_seq 3 Request timeout for icmp_seq 4 Request timeout for icmp_seq 5 Request timeout for icmp_seq 6 Request timeout for icmp_seq 7 Request timeout for icmp_seq 8 --- 192.178.1.2 ping statistics --- 10 packets transmitted, 0 packets received, 100.0% packet loss ping:cannot resolve www.yahoo.com: Unknown host ping:cannot resolve www.google.com: Unknown host ping:cannot resolve www.diptera.info: Unknown host Lookup has started… ; <<>> DiG 9.6.0-APPLE-P2 <<>> www.yahoo.com/ +multiline +nocomments +nocmd +noquestion +nostats +search ;; global options: +cmd ;; connection timed out; no servers could be reached Traceroute has started… traceroute: unknown host www.yahoo.com Whois has started… whois: whois.internic.net: nodename nor servname provided, or not known Get your Diptera Mug etc at The Thinking Man Shop http://www.cafepr...om/TTMshop Gordon |
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| Gordon |
Posted on 06-08-2010 10:01
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Member Location: Lake Kerkini, Greece Posts: 1097 Joined: 02.01.08 |
Hi Chris, Yes I have limited internet access - this is my 4th attempt to post this. Below is the dtat my computor gives at 'location' and the results of pinging, 1st time the IP address given in location then other web sites. Location Status = Connected Ethernet is currently active and has the IP address 192.168.1.2 Configure IPv4 = Using DHCP IP address = 192.168.1.2 Subnet Mask = 255.255.255.0 Router = 192.168.1.1 DNS Server = 192.168.1.1 Search Domains = Home PING 192.168.1.2 (192.168.1.2): 56 data bytes 64 bytes from 192.168.1.2: icmp_seq=0 ttl=64 time=0.055 ms 64 bytes from 192.168.1.2: icmp_seq=1 ttl=64 time=0.052 ms 64 bytes from 192.168.1.2: icmp_seq=2 ttl=64 time=0.058 ms 64 bytes from 192.168.1.2: icmp_seq=3 ttl=64 time=0.058 ms 64 bytes from 192.168.1.2: icmp_seq=4 ttl=64 time=0.055 ms 64 bytes from 192.168.1.2: icmp_seq=5 ttl=64 time=0.051 ms 64 bytes from 192.168.1.2: cmp_seq=6 ttl=64 time=0.051 ms 64 bytes from 192.168.1.2: icmp_seq=7 ttl=64 time=0.058 ms 64 bytes from 192.168.1.2: icmp_seq=8 ttl=64 time=0.056 ms 64 bytes from 192.168.1.2: icmp_seq=9 ttl=64 time=0.074 ms --- 192.168.1.2 ping statistics --- 10 packets transmitted, 10 packets received, 0.0% packet loss round-trip min/avg/max/stddev = 0.051/0.057/0.074/0.006 ms Ping has started… PING 192.178.1.2 (192.178.1.2): 56 data bytes Request timeout for icmp_seq 0 Request timeout for icmp_seq 1 Request timeout for icmp_seq 2 Request timeout for icmp_seq 3 Request timeout for icmp_seq 4 Request timeout for icmp_seq 5 Request timeout for icmp_seq 6 Request timeout for icmp_seq 7 Request timeout for icmp_seq 8 --- 192.178.1.2 ping statistics --- 10 packets transmitted, 0 packets received, 100.0% packet loss ping:cannot resolve www.yahoo.com: Unknown host ping:cannot resolve www.google.com: Unknown host ping:cannot resolve www.diptera.info: Unknown host Lookup has started… ; <<>> DiG 9.6.0-APPLE-P2 <<>> www.yahoo.com/ +multiline +nocomments +nocmd +noquestion +nostats +search ;; global options: +cmd ;; connection timed out; no servers could be reached Traceroute has started… traceroute: unknown host www.yahoo.com Whois has started… whois: whois.internic.net: nodename nor servname provided, or not known Get your Diptera Mug etc at The Thinking Man Shop http://www.cafepr...om/TTMshop Gordon |
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| ChrisR |
Posted on 06-08-2010 11:57
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Administrator Location: Reading, England Posts: 7699 Joined: 12.07.04 |
Hi Gordon - yes it all points to the fact that your DNS isn't configured correctly. Your network adaptor has been set to look at the router (192.168.1.1) for any DNS info but for some reason it hasn't got it - or the provider hasn't given it to it. So far you have only pinged Private, internal IP addresses and they all work - and the external URLs all fail. Now try pinging something like diptera.info using it's IP address (72.44.83.99) and see if you get a reply - if you do then you definitely have internet and no DNS. The good news is that you just have to find the IP addresses of your internet provider by Googling (like "<insert providers name here> dns server address" and then put them into the network adaptor's settings/properties (replacing the 192.168.1.1 address in the DNS server list).
Edited by ChrisR on 06-08-2010 11:58 Manager of the UK Species Inventory in the Angela Marmont Centre for UK Biodiversity at the Natural History Museum, London. |
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| Gordon |
Posted on 11-08-2010 02:02
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Member Location: Lake Kerkini, Greece Posts: 1097 Joined: 02.01.08 |
Thanks Chris
Get your Diptera Mug etc at The Thinking Man Shop http://www.cafepr...om/TTMshop Gordon |
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but don't see the image in the post.