hio77:Scrubb: I'm using: FRITZ!OS 05.51 Firmware version: 84.05.51
And I am having IPv6 issues. Turned IPv6 off though and it is working like a charm.
tried dropping to 5.22 and see if it resolves it?
I've read on here that for some people going to an older firmware fixes the problem but I'm more than happy not using IPv6 and it only required un-ticking one checkbox, so in my case I'll leave it as is for now until there's more information or a fix. Thanks for your suggestion though :)