Is anyone else had trouble connecting with HMRC? Trying to submit an April VAT return. Previous quarters ok so not a set up problem. Thanks

Hello Eastwoodsussex, 

It looks like HMRC have experienced issues today, this might be why it is not letting you submit the return. If you go to this site it will tell you if there is an issue or not and still looks like people are reporting there is. 

Downdector HMRC

https://downdetector.co.uk/status/hmrc/