Teamviewer ID and I.P. subnet

I am currently in Sri Lanka but remotely manage my own home computer back in the UK.

All has worked perfectly, until today when for reasons outside the scope of this message, I updated the UK LAN I.P. address range from 192.168.1.1 ... 254/24 to 192.168.2.1 ... 254/24 and rebooted the UK router.

Since then, my Teamviewer client here in Sri Lanka tells me that "Teamviewer is not running on the partner computer" - but it is because I simply got booted off the connection (of course) when the UK router restarted and I use a permanent Teamviewer ID and password.

I would expect that my UK computer (Windows 10) would automatically pick up its new I.P. address without needing a reboot, but do I need to ask someone (when they wake up in a few hours' time!) to reboot it to force this to happen - or is my Teamviewer problem related to something else?  For example, does what I have done to the network mean that I have to regenerate the Teamviewer ID?  I think not from what I have read in the Community FAQ, but ask to be sure.

Many thanks.  It is frustrating being thousands of miles away and unable to physically do things to troubleshoot.