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joe_walker's avatar
joe_walker
Helpful | Level 5
6 years ago

Connection timeouts

Hi,

From approximately 22:30 UTC on 27 Oct until present we have been getting timeouts when trying to connect to the Dropbox API:

cURL error 7: Failed to connect to content.dropboxapi.com port 443: Connection timed out (see http://curl.haxx.se/libcurl/c/libcurl-errors.html)

Traceroute to content.dropbox.com is as follows:

traceroute to content.dropboxapi.com (162.125.83.8), 30 hops max, 60 byte packets
 1  vzsrv03.vps.apdcsy1.digitalpacific.com.au (101.0.66.201)  0.051 ms  0.031 ms  0.030 ms
 2  vlan-1046.dsw01-pod01.apdcsy1.as55803.net.au (101.0.126.101)  2.174 ms  2.179 ms  2.137 ms
 3  ae2-0.cor01.apdcsy1.as55803.net.au (101.0.125.121)  0.593 ms ae2-0.cor02.apdcsy1.as55803.net.au (101.0.125.113)  0.631 ms  0.587 ms
 4  ae0-0.bdr01.apdcsy1.as55803.net.au (101.0.127.113)  1.213 ms ae1-0.bdr01.apdcsy1.as55803.net.au (101.0.127.121)  1.165 ms ae0-0.bdr01.apdcsy1.as55803.net.au (101.0.127.113)  1.123 ms
 5  lt-2-2-0-10.bdr01.eqsy3.as55803.net.au (101.0.126.124)  0.490 ms  0.438 ms  0.413 ms
 6  ten-0-2-0-7-101.bdr01.syd03.nsw.vocus.net.au (49.255.198.124)  0.881 ms  1.021 ms  1.044 ms
 7  BE-107.cor01.syd11.nsw.VOCUS.net.au (114.31.192.80)  0.752 ms BE-107.cor02.syd04.nsw.VOCUS.net.au (114.31.192.82)  0.754 ms  1.165 ms
 8  BE-100.bdr02.syd03.nsw.VOCUS.net.au (114.31.192.39)  1.086 ms  1.072 ms  1.076 ms
 9  * * *
10  po1-syd2-ea01.net.dropbox.com (162.125.86.189)  0.940 ms  0.955 ms  0.963 ms
11  * * *
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API
  • joe_walker's avatar
    joe_walker
    6 years ago

    I have just received a reply from Digital Pacific explaining that:

    "We erroneously blocked the IP due to suspicion of it being involved in a large attack on our networks, This error has now been corrected and the block reverted"

    So this problem was with the host - my apologies for wasting your time. Thanks very much for your help.

  • Greg-DB's avatar
    Greg-DB
    Icon for Dropbox Staff rankDropbox Staff
    6 years ago

    Thanks for the report! We'll check on this. For reference, are you still seeing this now?

    • joe_walker's avatar
      joe_walker
      Helpful | Level 5
      6 years ago

      Hi Greg,

      Yes - the connection still times out and the traceroute result is still the same as above.

      • Greg-DB's avatar
        Greg-DB
        Icon for Dropbox Staff rankDropbox Staff
        6 years ago

        Thanks! We're looking into this, but we haven't been able to find a network issue for that network route. 

        To try to narrow this down:

        • Are there multiple users of your app, and if so, are multiple users affected, or just yourself?
        • Which API endpoints in particular are you using, and which are affected?
        • Is this affecting all of the attempts to connect to content.dropboxapi.com, or only some of them? If it's only some of them, about what percent are affected?
        • Is there anything on your network connection, e.g., a proxy, firewall, anti-virus, etc. what may be interfering with HTTPS connections to content.dropboxapi.com?
        • Can you share the information on https://dropbox-debug.com from an affected machine?

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