RBK750 Series - Firmware Update v4.6.3.7

Thanks FURRYe38 for your instructions. I'm in IT so probably would not recommend for soemone not tech savy to perform. Pretty rubbish and I feel for people struggling with recent upgrades.

I have a RBR850/RBS850 and the only firmware version that still has the telnet option is RBS850-V3.2.10.11_1.2.12. I have downgraded and blocked upgrade sites. All seemed to go as per instructions. 

It does concern me that by stopping updates we may leave ourselves vulnerable by not updating firmware. However, Netgear have done such an disgraceful job in the v4.6 update, what option do we have. 

It appears now and with downgrading, I now have internet speeds to what I had before (200-240Mbps). 

I've also reinstated my secondary wifi network (not Orbi which works and is now backup), compared speeds and they are the same. Tested from 4 different devices. 

I'll run with this for now but likely to move off this expensive rubbish product to something better. It sh!ts me to have to waste good money on rubbish infrastructure!

Likely move to a business grade kit for home network, such as Meraki or Ubiquiti.

Good luck everyone.

BTW - does anyone know the billing department details for Netgear, invoice them for lost earnings?