HTTLSTRM:

portunus: I'm using a MikroTik RB2011 - not supported by any of the ISPs but I'm OK to configure myself. 

You probably need to do a ppp debug to see if you can see the ppp requests going out and if anything is coming back.  Not sure on the Cisco SRP (does it run IOS like the bigger cisco routers?).  On a platform like 18xx/28xx/29XX use "term mon" followed by "debug ppp negotiation" and "debug ppp authentication".  If the connection has not been provisioned yet I expect you would see lots of pppoe discovery packets going out but nothing coming back.  Or if it has you should be able to tell if it's a username/password issue from the negotiation/authentication phase.

churs
ben

Thanks Ben
From what I can see SRp does not run IOS (I stand to be corrected).  Using the web GUI, has Diagnostics, Ping, Detect active LAN clients, ATM OAM Ping.

On the Interface Information page, shows WAN (LAN port 4) TX packets but nothing received (0 RX)

There are a few settings I am not 100% sure about.  They are:
Multiplexing = LLC (not VC)
QoS type = UBR (not CBR, VBR_RT, VBR_NRT)
VPI/VCI Auto Detect = Enable
PPPoE settings (left Service name empty, keep alive = yes)
Enable MTU/MRU > 1492 = not selected
LCP Echo-Request Interval: 30
802.1 QVLAN Ecapsulation, VLAN Encapsulation = Enable, VLAN ID: = 10  (this is where I assume VLAN tagging set to 10 as 2Talk requires)
DSL Modulation = Multimode

Any of the above look like causing a problem do you think?

Thanks again.