UPS 3750W

First off let me apologise for the location I've placed this , I cant seem to find UPS section so if a moderator can move it please do.

We have a DELL 3750W UPS and I recently had to replace the batteries, so I thought, let update firmware and reset its settings to give it a little refresh. - Big Mistake it seems.

Here's my problem.

I can access the management card using Putty - I can set IP addresses I can reset it to factory defaults, I can reset password back to default , I can access the UPS via USB and the UPS monitoring software displays information on the UPS.

What I cant do is access the Web console via IP address.

If I use http:/IP Address I get  "Management Card in SSL Mode Click here to use SSL"

If I switch to https the page fails to load with (ERR_SSL_PROTOCOL_ERROR) I believe this is related to the strength of the SSL Encryption? or RSA key?

I did manage to get the credential to pop up once but this absolutely fails on the the credentials reset back to admin & admin. even though I can enter maintenance mode using this password via the serial connection and Putty

I've scoured the internet looking for a fix but keep hitting brick walls. 

Anyone out there come access this?