Reconfiguring a Plusnet ADSL router (Sagemcom 2704n)

I’ve been trying to improve my Skype call quality at home and the guys I work with who know about this sort of stuff have suggested that my cheap ISP-supplied router may be part of the problem. Put simply, the Technicolor TG582n that Plusnet shipped me last year is fine for a bit of web surfing, it even streams video from iPlayer, etc. OK, but it’s not up to the task for P2P or real time media.

I was playing around with some of the settings and found that the router wasn’t behaving reliably (when I applied changes, and they weren’t applying) so I called PlusNet, who gave me two options: factory reset and a new router. I went for both.

The factory reset got me back up and running until the new router arrived. Plusnet’s current “Hub Zero” router is a Sagemcom 2704n and, whilst I’ve yet to see if my Skype for Business call quality improves, everything else about it seems to be a retrograde step:

The hardware design is flawed – when fixed to the wall, the router’s Ethernet ports are inaccessible (there isn’t enough room for them to turn through 90 degrees!) and, despite having a Gigabit Ethernet switch the ports are only 10/100 (yes, the ADSL connection is much slower than that but the cheap Ethernet ports reduce the speed of the local network).

Then, there’s the firmware that Plusnet have applied to the router which takes dumbing down to a new level. At least with the TG582n I could make a telnet connection for advanced configuration; Plusnet have blocked telnet, SSH and SNMP so there’s no way to manage the device. They’ve also removed the ability for ICMP to be enabled so my broadband ping trace flat-lined when I plugged in the new router:

PlusNet router blocks ICMP
No ICMP, no ping test

Worst of all, the Plusnet firmware hides the ability to change the IP address of the router, or to turn off DHCP. Given that I have a business account and that the paperwork with the router says “Welcome to Plusnet Business”, I’d have thought that almost any business with more than a handful of users would have its own DHCP server and may want to control the IP range in use (as I do – my Raspberry Pi does runs the infrastructure here). Luckily, after some hunting around I found a forum post with the details I needed:

Log into it using http://192.168.1.254/expert_user.html with the admin name and password.
Select >Advanced Setup >LAN
First select the ‘Disable DHCP Server’ radio button, then at the top, change the IP address

[…]

now click Apply/Save at the bottom. The 2704n will now update and the page will start to refresh but won’t complete as you now have to change the address in your browser URL bar to http://[yourchosenIP]/expert_user.html

In all likelihood, I’ll be buying a new router. Something decent for ADSL2+ that will also work if I do upgrade to FTTC later. In the meantime, at least I’ve managed to get over the biggest hump with reconfiguring the Sagemcom 2704n.

8 thoughts on “Reconfiguring a Plusnet ADSL router (Sagemcom 2704n)


  1. Mark, take a look at anything from the Draytek range, VDSL and ADSL in the same box, in fact, in the same port. Very configurable and a favourite of the SME business world (who never ever use the ISP provided rubbish).


  2. Thanks Mark,

    We recently moved to PlusNet and have had nothing but grief with port forwarding and if you talk with PlusNet support on this issue they simply tell you they do not support Port forwarding and if you want to do port forwarding go and get anther router and the 2704n router is ‘Just to get you up and running’ this is a great shame as we moved to PlusNet as we thought they would give good support.


  3. Glad the post helped Harvey. Must admit I don’t use that router any more (as we have FTTC now so have a PlusNet Hub One) but a bit surprised that they told you to buy something better! I’ve been a PlusNet customer for years and always had great support but that may be different as it’s a business account (so costs me a lot more!)

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