Curl response hangs

I have a site set up in a virtual box. I am able to access it just fine from a browser on my machine, but I have trouble accessing it via CURL while SSH'ed in to the box.

When I try, curl hangs before displaying the response and exiting.

This is what I run: curl -vvv site1.dev/

This is the output it gives:

* Hostname was NOT found in DNS cache
*   Trying 192.168.10.10...
* Coected to site1.dev (192.168.10.10) port 80 (#0)
> GET / HTTP/1.1
> User-Agent: curl/7.35.0
> Host: site1.dev
> Accept: */*
> 
< HTTP/1.1 200 OK
* Server nginx/1.9.7 is not blacklisted
< Server: nginx/1.9.7
< Content-Type: text/html; charset=UTF-8
< Transfer-Encoding: chunked
< Coection: keep-alive
< Cache-Control: no-cache
< Date: Fri, 08 Apr 2016 16:47:30 GMT
< 
* Coection #0 to host site1.dev left intact
hi

The request portion is sent off right away, but the response hangs for a number of seconds (looks like 120ish), and then curl exits with that message: * Coection #0 to host site1.dev left intact

That is followed by the appropriate body of the response, "hi".

I'm a little lost -- any pointers would be appreciated.