[reSIProcate] reSIProcate DNS SRV lookups very slow on VPN

[Christian_Gavin@xxxxxxxxxxxx]

Hi,

I am seeing reSIProcate (0.9, on Windows XP service pack 2) being very slow
while connected to a VPN.

Typically, this is what I see (I clicked on the "Login" button in my app at
time 16s):

16s
      NAPTR query
17.1s
      response from NAPTR query
26.8s
      SRV query for _sip._udp.... (replace dots by domain name)
      SRV query for _sip._tcp....
27.08
      response from SRV query _sip._udp....
      response from SRV query _sip._tcp....
36.8
      query for the server returned by the _sip._udp. query
37.2
      response from query with IP address of SIP server
37.3
      REGISTER is sent

Also, later on, REGISTER is denied with a 401, and a second REGISTER is
sent with credentials. Between the first and second REGISTER, the same DNS
sequence occurs again, and almost 30 seconds have elapsed.

Why are there 8-9 seconds gaps between queries ? Has anyone seen this
problem before ?

Thanks for any help on this!
Christian

PS: The DNS settings on Windows have been set to the primary and secondary
DNS server of the Internet provider.