Over the past few days whenever I click on a forum topic I receive a message telling me that I have been blocked.

The reason is given as :1960f7296a0-7f3580axx.xxx.145.30  (my IP address)ERROR_RESPONSE_SUPPRESSED

After a while I am able to open the forum again.

Any ideas as to why this is happening?

This is also happening to me.

Same - I'd guess it's happening to everybody and the filtering in use has been turned up a bit too high...

Thank you for reporting this. It is being looked into.

Same...

I'm also having to login more often than ever before, even after ticking the "Remember me" tick box. Anyone else?

Yes, although that's been happening for a while. I also noted that logging in with the credentials I thought I'd set up for the forum was denied, and I had to use my "Draytek" credentials instead, although that may just be me