snom PA1 keeps rebooting

my Snom PA1 will work no problem at my office when i set it up. when i move the snom to the other office location it will not connect and keeps rebooting and i cannot even have the page open long enough to get into the settings.

even if i take it off the network it does the same thing. but when i bring it back to my office it connects straight away.

any idea why this could be happening.