About 10 days ago, we suddenly stopped being able to access our company website. Our website is hosted by Hostway. We could not reach it via HTTP or FTP from our office building. I called Hostway to have them check it out. But because it seems to be accessible from all other location except our office, they claim it's not their issue. I also contacted our ISP and again, because it seems that we have no trouble accessing any other website, they claim it's not their issue. So I guess that would suggest that it's our issue... however, no changes have been made to our domain controller or firewall/router.
We found that if we used an annonymous proxy (annonymouse.com or megaproxy.com) we could reach our website.
We have 2 internet sources. Cable internet for our data traffic, and a T1 line for our VOIP traffic. We found a workaround by having rerouted all our HTTP and FTP traffic for that specific domain and IP address to our T1 line. So obviously, this issue is related to our cable internet connection somehow.
I don't understand what could have spontaneously changed. The only thing questionable is that I gave someone our website login credentials the week before this happened so that they could add a page to the website that our marketing dept. needed. Is it possible they could have changed something at the webserver?
A Traceroute shows that we are reaching Hostway, but then time out...
5 36 ms 43 ms 34 ms xe-10-1-0.edge4.Atlanta2.L
6 48 ms 36 ms 35 ms ae-72-52.ebr2.Atlanta2.Lev
7 84 ms 57 ms 53 ms ae-3.ebr2.Chicago1.Level3.
8 55 ms 54 ms 55 ms ae-21-54.car1.Chicago1.Lev
9 53 ms 53 ms 54 ms HOSTWAY-COR.car1.Chicago1.
10 70 ms 53 ms 62 ms lfw113.chi.us.siteprotect.
11 * * * Request timed out.
Anyone have any ideas?
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Just to clairfy, our cable internet is significantly faster than our T1 line. 20 Mbps download and 2.5 Mbps upload.
Not sure what the MTU has to do with our issue. All we're trying to do is browse to our website or simply connect with an FTP utility... not transfer files. And it has been working via our cable internet connection... for more than a year. No changes were made to our routers prior to this problem.
For test reasons, can you place any other router with your cable modem and then try to access your website.
or check for any black listing at your webserver admin interface ; may be someone by mistake have your IP address treated as a black list just on your website ?
I would still suggest to put a test router with your cable broadband modem or plug a pc / laptop with it only see if you can get to yoru website
Update... I bypassed our router and made a direct connection to our cable modem with a laptop to test and still could not access the website. I also verified that our public IP address was not blacklisted with the webserver host.
Since posting this, we removed the workaround that I mentioned above (where our router had internet traffic to our website redirected to go out the T1 instead of the cable connection) to test further and the problem seems to have resolved iteself. Thanks for the suggestions. However, no solutions were provided.
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by: mutahirPosted on 2009-11-02 at 08:55:22ID: 25721087
What is the router on your cable broadband line ?
Whats the MTU (Maximum transmission unit) size on it ? You would have to check this on your router via telnet or admin interface ; if you have a manual for your router you can look up into it and before changing it, note down the current mtu value.
just a suggestion