Issues with Thomson TG585v7 Router

[#1]

Some time ago I tried to change my Router's admin password, wireless channel and SSID. Each time the router simply rebooted and reset everything to factory settings.
Is it me or do I have a faulty router? This one's only 3 months old.
My current connection has been up for over 45 days so I'm somewhat reluctant to change anything right now.
Should I put up with this situation
OR
should I ask PN to replace the Router
OR
should I buy another Router (if so which one) and keep the Thomson as a spare?
All views appreciated. 

[#2]

I also have the same problems, Stuck on channel one, keeps rebooting back to defaults..  this is a firmware bug, which has never been resolved i think. So i have read on these forums, or just plusnets buggy coding added to the firmware,Or we both have dodgy routers.    either way the routers aint worth *****

[#3]

Hi MrT,
It may be worth upgrading/refreshing the firmware, if that doesn't work we would be happy to get you a new one out if it's only 3 months old. We have a help page on how to do this here
Jojo

[#4]

My router is good now i just reflashed it with stock firmware. No more rebooting, and every setting sticks with no error's.  
Not to keen on the plusnet firmware.

[#5]

Hi folks,
Thanks for your responses. My Router came with v8.2.6.5 firmware.
I've downloaded the relevant items (per your link) Jojo and will do the re-flash over the weekend.
I'll get someone to pray on Sunday that this process does not mess up my profile! 
Cheers.