Hi - hoping someone in the community can help:

I'm trying to set up an account with BackBlaze for cloud storage of my files.  However, when I try to login - I get an "error fetching account" response.  Having tried to troubleshoot this with BackBlaze, they're convinced its a security setting on my MR6400 router.  I login fine from my phone with Wifi turned off - but get the error above from either my PC, or Phone (with Wifi on).

I can't see anything obvious in the security settings of the router that should be preventing this - but I'm a bit out of my depth, so would really appreciate any ideas

Thanks