I had a foreign SIP configured fine at my old address where I had Telfort which was switched to KPN several months ago. Zero problems. Since last week I moved into new house and my SIP stopped working. On gigaset settings it says registered but on the phone device calling doesn’t work and the phone has a message `no IP connection`. I haven’t changed anything on my ISP router(Experia Box v10a) and simple move it to the new house.
Any ideas where should I look at? I didn’t expect to have this problem as everything were working fine at the old address
Thanks,
Pavlos