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Can the FRITZ!Box be used as a multi-WAN router?

Your FRITZ!Box does not support combining several internet connections. Therefore, your FRITZ!Box cannot be used as a multi-WAN router to establish simultaneous internet connections via the WAN interface, a LAN interface, or a connected mobile broadband modem.

Note:Only the FRITZ!Box 6890 LTE supports parallel operation via mobile and DSL or WAN internet access (for example via a cable modem). Downstream data rates of up to 600 Mbit/s are possible when combining LTE and DSL.