Shaw blocking VPN?

We have multiple users on Shaw having trouble connecting to our work VPN, does anyone know if Shaw is still blocking VPNs? I know they used to block VPNs, but last I heard of that a while ago. I tested this with a remote user, had them tether their work device to their phone over LTE and they were able to connect... One other thought, does the Shaw modem limit to one VPN at a time? I don't think this affects this particular user though.