Help please! No response received from 'sip:sipgate.co.uk:5060'

No response received from 'sip:sipgate.co.uk:5060' on registration attempt to 'sip:[email protected]:5060', retrying in '60'

All of a sudden (since today at midday) I’ve been getting this - any ideas why?!

I’m running FreePBX 15.0.37.4 and Asterisk Version 13.38.3

I’m wondering if it’s an TLS issue because a week ago NodeRed (hosted on same server) won’t make any HTTPS calls.

When I ping sipgate.co.uk from the same server I get a response ping just fine.

I tried turning on SIP and PJSIP debugging but because there’s no response there’s nothing there to show.

This is the full transmit:-

<--- Transmitting SIP request (580 bytes) to UDP:217.10.79.23:5060 --->
REGISTER sip:sipgate.co.uk:5060 SIP/2.0
Via: SIP/2.0/UDP 92.17.91.243:5060;rport;branch=xxx
From: <sip:[email protected]>;tag=x
To: <sip:[email protected]>
Call-ID: x
CSeq: 89731 REGISTER
Contact: <sip:[email protected]:5060;line=ozyymcx>
Expires: 3600
Allow: OPTIONS, SUBSCRIBE, NOTIFY, PUBLISH, INVITE, ACK, BYE, CANCEL, UPDATE, PRACK, REGISTER, MESSAGE, REFER
Max-Forwards: 70
User-Agent: FPBX-15.0.37.4(13.38.2)
Content-Length:  0

Some details redacted with an ‘x’

THANK YOU

Have you consulted to sipgate.co.uk support?