The TG582n router from Plusnet has been solid as a rock recently, I would usually get at least one random restart / disconnect every 1 or 2 weeks. Not sure if there has been a recent firmware upgrade, but I was impressed with the up time!
Uptime: 50 days, 13:33:05
I haven't checked mine recently but earlier this year:
Sadly shortly after that it got bounced by the numpties installing a second cabinet. I have an HG612 modem and Billion 6300 router.
Edited by Andrue (Mon 31-Oct-16 16:44:54)