OK so original router was FAST5364-3.T8 and replacement is FAST5464-2.T4, both are running SG4K100174.
Prior to October/November when firmware on old router was running fine and then it was quietly replaced which bricked it, basically it then took forever for router menus to appear (as in minutes not seconds) and then finally it would log you out, this replacement has been considerably quicker in the menus, though there is still a delay of a few seconds after any selection whilst it decides what to do, but it has so far remained logged in. Nothing else has been changed in the setup beside the router itself, same cables, same devices, same browsers etc. In fact the internet in general seems more responsive this evening with the replacement. So whatever the winter update did it basically knackered the old router.
There's a bag inside the box to return the router, so I might as well do it now because even if the new one develops a fault, it's already performing better than the old one. Obviously something to do with hardware because software appears to be same version. Hopefully there will be no further issues but definitely TalkTalk should either stop pushing silent unrequested updates, or at least offer the ability to download previous firmware to rollback. After all, if it aint broke don't fix it.
