"Mizter T" wrote:
http://www.jcheck.com/firstcapitalconnect

---quote---
Owing to signalling problems between Cricklewood and Radlett all lines are
blocked. Train services through these stations may be subject to
disruption on all routes at short notice. Disruption is expected until
23:45 11/11.
[...]
---/quote---

More info from NRE he
http://www.nationalrail.co.uk/service_disruptions/sa34a55203f2481ca1845d3fc436cc1b/details.html

The NRE page said and is still saying "Journeys between London St Pancras
International and Luton may be delayed by up to 90 minutes", whilst the
JourneyCheck message said and still says that "all lines are blocked" -
looking at FCC's Twitter stream, the latter message would appear to be
correct and nothing's moving through the affected area, e.g.:
http://twitter.com/#!/FirstCC/status/135006922691723264

That doesn't stop LDB from promising trains that seemingly can't run, for
example the St Pancras LDB is showing trains to Luton and Bedford...
http://ojp.nationalrail.co.uk/service/ldbboard/dep/STP

....whilst the Mill Hill Broadway LDB still suggests services are running to
and from the station (when it actually falls within the portion of the line
that's supposedly blocked)...
http://ojp.nationalrail.co.uk/service/ldbboard/dep/MIL

Also, haven't seen this before (but maybe I've just never looked for it) -
on the NRE 'Service alterations' page, under the "Ticket Acceptance /
Alternative travel routes" heading, this is one of the bullet points:

---quote---
* Local Buses between Welwyn Garden City and Luton (Route 366) and Potters
Bar and St Albans (Route 84). Please note, you will need to purchase a
ticket for this journey and request a refund from First Capital Connect
---/quote---

Not so much "ticket acceptance" as 'ticket non-acceptance', though it's
undoubtedly an "alternative travel route" though.

Wonder if this might all be the work of cable thievery? (Though on the busy
MML, in the middle of the day?)