Hi, I have an annoying problem. On my 3CX v11 SP4 I have several external extensions (outside the LAN). They are a mix of SPA3102, 2102, 1001, Snom M3 and N300A IP. Everything is working fine but after a glitch of the internet or router the SPA’s lose their registration and never reregister until the devices are rebooted manually. Then everything is working again. The Snom and N300A always register immediate as soon the internet is back again. Can someone tell me what/why cause this and how to solve it? Thank you.