Odd I tried my Rogers and wind the same time, it worked fine on both sim. And if I put both Rogers sim, it worked fine too.
EDITED @10:55 : so the thing is the phone only can use one sim for 3g/4g connect at a time, since Rogers is the only Canadian carrier (nationwide) has 2G GSM/Edge network, dual sim for Rogers will work. But not for other carrier. So to be able to use your wind sim, you have to set "use this SIM for cellular data" to Wind to be able to use that sim, so is the TELUS sim too. So, you could try to see if you can setup in smart dual sim setting to make the phone calls automatically transfer to the other sim.
This is really not good, I was against the dual sim version releasing in Canada from beginning. Now I was proved right that the dual sim version almost useless and not benifit at all.