Annoying! Have you checked for any apps or files that can be cleared out? Limiting users per iPad might also help if that's an option. ... View more

Maybe using Port Forwarding, 1:1 NAT rules, or NAT Exceptions could be a way around it. Just gotta make sure you've got the right network setup and routing config. ... View more

Yeah, understanding your routing config and VLAN setup will help troubleshoot this. Running a packet capture on the LAN side MX could also provide some clues. ... View more

How about you try different numbers? Try the temporary numbers from https://anonymsms.com/. They're free. ... View more

The Netgear GS116 and TP-Link TL-SG116 are solid options worth considering, as they mention 802.1p support. If you don’t mind exploring managed switches, they can give you more control over VLANs. ... View more

 Perhaps one should use another router or contact the company and ask whether they configure port 4500 to be closed. Other benefits that came to the mind included the fact that working on one site at a time could minimize on complications. ... View more

I have seen similar problems and it is surprising that cmr found 19.1 to be better. If you’re okay with getting into beta testing, you might want to give that version a shot. ... View more