# 64-bit on-demand KDB License server URL **URL:** \ **Category:** Community Support\ **Tags:** add-ons\ **Created:** [December 17, 2021, 6:57am UTC](https://forum.kx.com/t/64-bit-on-demand-kdb-license-server-url/12330 "2021-12-17T06:57:00Z")\ **Posts on this page:** 6\ **Page:** 1
**Author:** ![darrenwsun1](https://avatars.discourse-cdn.com/v4/letter/d/8491ac/32.png) [@darrenwsun1](https://forum.kx.com/u/darrenwsun1)\ **Post date:** [December 17, 2021, 6:57am UTC](https://forum.kx.com/t/64-bit-on-demand-kdb-license-server-url/12330/1 "2021-12-17T06:57:00Z")
Hi Community, I want to play around with 64bit on-demand KDB on my corporate PC, but connection couldn’t be established due to firewall and I saw the below error. To address it I need to get the URL for the license server. Does anyone know what it is?   '2021.12.15T09:37:27.441 couldn’t connect to license daemon – exiting   Thanks!  ---
**Author:** ![LeahS1](https://avatars.discourse-cdn.com/v4/letter/l/3da27b/32.png) [@LeahS1](https://forum.kx.com/u/LeahS1)\ **Post date:** [December 17, 2021, 10:13am UTC](https://forum.kx.com/t/64-bit-on-demand-kdb-license-server-url/12330/2 "2021-12-17T10:13:00Z")
Hello @darrenwsun  Thank you for sharing this with the community! The error generated is documented here: KX Licensing - Licensing server for kdb+ On Demand.  This implies that it requires a kc.lic license key file and an always-on internet connection to operate.  Perhaps you are encountering a firewall because you are connected to a corporate WI-FI or VPN? If so, maybe try this when not connected to the VPN.  However, if a constant internet connection is an issue, it is worth noting that 32-bit kdb+ does not have this requirement and would be the suggested workaround.  Kind regards, Leah    ---
**Author:** ![darrenwsun1](https://avatars.discourse-cdn.com/v4/letter/d/8491ac/32.png) [@darrenwsun1](https://forum.kx.com/u/darrenwsun1)\ **Post date:** [December 20, 2021, 8:48am UTC](https://forum.kx.com/t/64-bit-on-demand-kdb-license-server-url/12330/3 "2021-12-20T08:48:00Z")
Thanks Leah. My PC sits in a corporate network and I’m pretty sure the issue is due to firewall. I can request a rule update but I need to know the remote endpoint it tries to connect to, which is what I hope to know from the community. I know 32-bit works without always-on internet, but I do wish to play things around using Kx Developer which doesn’t work with 32-bit version. ---
**Author:** ![LeahS1](https://avatars.discourse-cdn.com/v4/letter/l/3da27b/32.png) [@LeahS1](https://forum.kx.com/u/LeahS1)\ **Post date:** [December 21, 2021, 9:06am UTC](https://forum.kx.com/t/64-bit-on-demand-kdb-license-server-url/12330/4 "2021-12-21T09:06:00Z")
I’ve reached out internally for you, and I will revert back with feedback once received.  Kind regards, Leah  ---
**Author:** ![LeahS1](https://avatars.discourse-cdn.com/v4/letter/l/3da27b/32.png) [@LeahS1](https://forum.kx.com/u/LeahS1)\ **Post date:** [December 21, 2021, 4:33pm UTC](https://forum.kx.com/t/64-bit-on-demand-kdb-license-server-url/12330/5 "2021-12-21T16:33:00Z")
Reverting with feedback from our internal licensing admin experts:  "The endpoint is one of the following domains:  \*kdbod.com \*kdbod.net \*kdbod.org Only HTTP (port 80/tcp) is needed to these domains, there are no fixed IPs - though we front the service with more than one CDN provider - their IPs vary both depending on where you use the service and from one moment to the next. It is recommended the user use a HTTP proxy server if they wish to enforce such restrictions, kdb+/q does honour the http\_proxy environment variable. " We hope this helps you.  Kind regards, Leah  ---
**Author:** ![darrenwsun1](https://avatars.discourse-cdn.com/v4/letter/d/8491ac/32.png) [@darrenwsun1](https://forum.kx.com/u/darrenwsun1)\ **Post date:** [December 21, 2021, 11:32pm UTC](https://forum.kx.com/t/64-bit-on-demand-kdb-license-server-url/12330/6 "2021-12-21T23:32:00Z")
Many thanks Leah! I will try it out and let you know if it works.