M8 Does not connect to other network!

My M8 with Firmware 0.9.8.22 does not connect to other networks then my own (vodafone). If i go to settings in the phone options is see more providers in the list, but my M8 only connects to vodafone network. If i choose another network, it doesnt connect. If i put my simcard in anonther phone, it does connect to other networks.
Am i overseeing something.