Hi there,
@Passat52 Thanks for getting back in touch. I have just looked into your account and line looks stable, usage looks good too. If there are still any problems please let us know and we will look into this for you.
@km3 That's great to hear that it is working fine. Hopefully you won't have any more issues with this.
@Tiggur Welcome to our forum.
Issue with 5GHz is well known, you can find more details and helpful guide here
After looking into your account it doesn't look like issues you have are down to wireless connection as connection is intermittent. It is still dealt with by one of our agents here