asus RT-AC66U Router -

@liam.nolan.50 hi Liam, if still interested and answered to your question let me know . I can include the price of the post

@liam.nolan.50 looks like it can. Here what I found online .

Yes — in many cases the ASUS RT-AC66U B1 can replace a Vodafone Gigabox router, but there are some technical details and limitations you’ll need to check. Depending on your type of broadband connection (DSL, fibre, FTTH etc), whether the router supports the necessary settings (VLAN tagging, PPPoE etc), and whether you can get full speed or any special services (like IPTV or VoIP) working.

Here’s a breakdown of what needs to be true, and whether the ASUS RT-AC66U B1 meets those requirements (or whether you might run into issues):

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What Vodafone Gigabox requires / what people have found

From user reports and Vodafone documentation (Ireland):
• The Gigabox uses the 802.11ac Wi-Fi standard. 
• For replacing the router, people have used their own third-party routers with settings:
• PPPoE for WAN connection, with username and password broadband. 
• VLAN ID 10 on the WAN interface (required for many Vodafone fibre / FTTH connections) 
• Some have just used Gigabox in “bridge mode” (if that option is available) to allow using a separate router for Wi-Fi/routing. 

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What the ASUS RT-AC66U B1 offers / limitations

Let’s see how the RT-AC66U B1 stacks up against those needs:
• It is a Dual-Band Wireless-AC1750 router, so supports 802.11ac Wi-Fi, both 2.4GHz and 5GHz. Good in that aspect.
• It has a WAN port, supports PPPoE, can be configured with a VLAN ID (you’ll need to check if the firmware / interface supports setting VLAN on WAN — many ASUS routers do).
• Gigabit LAN ports are likely included. However, check the maximum WAN throughput: VB might provide very high speeds (if you have a Gigabit or more fibre/two-Gig service). The AC1750 class router is not top of the line for very high speed or many simultaneous users/devices, but for many home uses it’ll be okay.

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Points to check / possible issues
• Speed: If your broadband is fibre at e.g. 1 Gbps or more, the RT-AC66U may become a bottleneck in certain conditions, especially over Wi-Fi or for many simultaneous devices. If you only need, say, 200-500 Mbps, it’s more likely to work well.
• VLAN support: You need to ensure firmware allows setting VLAN 10 on the WAN. If not, you can’t connect properly.
• PPPoE configuration: Must match Vodafone’s credentials.
• VoIP / IPTV: If you use Vodafone-provided phone service or TV service that relies on special routers/protocols, those could be disrupted (some proprietary stuff may require their hardware, or there may be special ports / settings).
• Support / troubleshooting: Using your own router may reduce the support Vodafone provides if connectivity issues arise (they may ask you to revert to their router to test).

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Conclusion

So, yes, the ASUS RT-AC66U B1 can replace the Vodafone Gigabox in many setups — especially for pure home broadband / general internet / Wi-Fi usage. But make sure:
1. Your firmware supports VLAN tagging, WAN type PPPoE.
2. You know what your current broadband speed is, and whether the ASUS can handle it without being a bottleneck.
3. You test if any special services (VoIP, TV) still work (if relevant to you).

@liam.nolan.50 I would double check online . I used only for the vpn