I m having the same issue. connection lost intermittently. call their support. say will check on site. then receive a call from technician say site no problem, need to come over my house to check. i say ok. then this morning receive msg from unifi saying that on site support & change of CPE will be a charges which wil reflect on bill. i quickily call support, been told service warranty expired, will only bear charges of RM 50 & faulty router or that hypo tv set.
but i believe it's either their site problem or modem problem cos i got 2 router (tp link & d link unifi), tested both with wired & wireless. same.
ping to google.com , many lost connection....

technical guy came, change modem work fine now.
let me conclude unifi-vdsl for my own experience:
i have been using unifi-vdsl since 2011 april. few times connection problem, change modem twice, site problem few times. so for
consistency wise, i would only rate it 6 over 10.
for speed, almost perfect. torrent, streaming, constantly getting 500 kbps & above (VP5). 9/10
but certainly i would switch to times astro iptv when my contract finish in april 2013. they claimed it's fully fibre, they will lay the fibre cable to my home. unlike unifi VDSL.

p/s: i never on the modem for 24 hours, week day working, weekend the longest i ON is 10 hours.

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Added on December 23, 2012, 1:31 pmu gotta ask them to come & check if ur modem is faulty
happen to me b4

This post has been edited by kajika81: Dec 23 2012, 01:31 PM