I have a VirginMedia email address, a blueyonder email address and my wife has a VM address too. I also have supanet, Gmail and Hotmail email addresses.
My desktop PC has Outlook 2010, configured with both our VM accounts, as well as the BY account, the supanet and the Gmail account and it's been that way for many years. My iPad has just my VM email and my Hotmail accounts configured, as does my iPhone. Again, all working happily for a long, long time.
The wife's laptop, iPad and iPhone have just her VM account configured. Again, all working happily.
At least, they were all working up to Monday night. When we woke on Tuesday morning (Tues 19th Jan), we were unable to send emails from any of our devices from the VM & BY addresses. My Hotmail and Gmail accounts still sent out without problem. We can receive emails into all accounts, on all devices.
When I try to send from any VM/BY account, on any of the devices, whilst on our home network, we get an error reporting that the username or password is incorrect. They are not. Something is causing the server authentication to fail/reject login when routed through home network, although it's happy to authenticate IMAP and POP logins for downloading incoming emails.
I have a Superhub3, set in Modem mode and connected to that is a Netgear Orbi Mesh router, with three satellites. This has been in place for nearly 2 years. Out of frustration last night, I did a factory reset of the Superhub3. I then set it back into Modem mode. I also did a factory reset of the Netgear Orbi system, before resetting my SSID and Password to chosen values. This whole reset procedure had no effect.
My desktop is hard-wired through to the router and the other devices are on Wi-Fi. If I turn off the Wi-Fi on my iPhone and use 4G, emails get sent out OK. But as soon as I enable the Wi-Fi again, I am unable to send out from my VM address.
So something happened overnight on Mon 18 / Tue 19 Jan, causing Virgin to reject emails sent out from virginmedia-owned addresses when sent from my home network. As I said, Hotmail, supanet and GMail messages go out OK.
I tried calling VM, but whenever I call, 'ALL LINES ARE BUSY....'. I raised my issue on the Facebook page, but no-one helped until they suggested posting here on the forums, so here I am!
I need technical help please!