API connect error; ERR 110: Connection timed out

[David Good]

I'm doing some programming with the MCAPI. I have code which works 100% when on a testing server based in the UK, but on the live server in the US, the code seems to have stopped working. 

I see the error "Unable to Create New Campaign! Code=-99 Msg=Could not connect (ERR 110: Connection timed out)".

I submitted a ticket to MC, whose reply mentiioned the server maintenance yesterday, but that should be fixed.

Any help as to how I can diagnose this error would be much appreciated.

David.

[jesse]

There are some general tips on troubleshooting connectivity here:

http://apidocs.mailchimp.com/gettingstarted/timeouts.php

Are you hitting us2 and had hardcoded ip addresses somewhere or have one of those hosts who insists on whitelisting outbound connections? If so, that's the likely culprit.


jesse

[David Good]

No, I don't believe it's hardcoded; if it was surely it would fail on the UK server.

I'll check those docs and double-check the code.

[David Good]

I've checked the code; no sign of hard-coded IP addressese or even . fwiw, my API key does end "-us2". 

All the timeout values and urls etc.. are the default untouched MCAPI.class.php. 

I don't understand why this worked a couple of days ago.

[jesse]

IPs changed and you almost certainly have one hardcoded somewhere - that would be in dns or something like a hosts file, not code - OR your host requires whitelisting ip addresses. Testing connectivity from the server should confirm that - if pings work, use something like tcptraceroute or talk to your server admin/host to get help testing connectivity.


jesse

[David Good]

Thanks. I don't think there's any reason why this would be hard-coded, but I've asked our sys-admin to look into this and do a ping test to us2.api.mailchimp.com and let's see what we get back.

Thanks,

David.

[Stacey Mulcahy]

I am having a similar Issue. I am using the MCAPI - and locally on my test environment, everything works okay. Once put to a dev server I am getting this response:

{"success":false,"error":"There was an error with the system: Could not connect (ERR 110: Connection timed out)"}

The call doesn't consistently register in the list api activity. 

My authorization key ends in - us2

I have asked about whitelisting ips - not an issue. I have asked about the secure/not secure option, we tried the not secure option.

Suggestions? 

[jesse]

Everything I can suggest looking at is listed above and (largely duplicated) over here:

https://groups.google.com/d/topic/mailchimp-api-discuss/BDdm192MrCg/discussion


jesse

[David Good]

This problem has magically disappeared for me; I guess it was a slow to propagate IP change between servers.

[Stacey Mulcahy]

Same

Sent from my iPhone

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