I've searched the internet for a solution to this problem, to no avail.

I'm getting an increasing number of complaints that, as the title says, my joomla sites are displaying as 503 errors in windows phone 8. HTTP 503 service unavailable.

I've tested it on a lumia 1520 and I get the 503, which I thought meant that the host server was playing up and therefore the site would be down for everyone, but it still works fine when tested on a various pcs and laptops.

I have absoloutely no idea what could be causing this and wondered if anyone else has had the same problem?