I use 2 laptops and an internetprovider. The provider give me 2 adres for communication. one is ABC74 and the other is ABC74- quest. On the Acer with Firefox 66.0 can I use both adres ( ABC74 an ABC74-Quest ) On the Lenovo with Firefox 86.0 is only the ABC74-quest available. On that computer Firefox shows me that there is the connection with ABC74 but get the warning that Firefox can not made a connection. The rest of the homecomputers ( Mac with Safari and Windows 7 and 10 with EXplorer ) has not that particular problem. What is wrong??