Error Code: 1:4688822970:-468592 1B

Have the same issue, EA servers are just garbage. It's true what people say disabling Cross Play makes that error not happen, but I tried both BF2042 and BFV and there are like 7 people playing. Yesterday I waited 15 minutes to get enough people to start a game and we got up to 7 people....at that point I was like screw it, BF is just dead. And they have the audacity to ask me to buy DLCs...
And yes both BF2042 and BFV result in the same error, I've tried the same 'fixes', changes DNSs...repaired the game. Nothing works. EA and Dice have been going downhill hard for years...and now you can finally not play at all. There are like too many nails in that coffin.

Are the disconnects happening on console or PC?

Is Universal Plug and Play (UPnP) enabled on your home router? It's worth a try, if it doesn't work you can turn UPnP back off.

PC. And it only happens when the Cross Play is enabled. Of course you can only play it enabled, as there are 6 people total on all their servers combined. If UPNP is the issue it wouldn't work to begin with. This is likely to one of their services, most likely some mismatch of the EAC on PC and Console. Disconnect is definitely initiated from their servers, but I've tried re-installing and repairing the game an EAC. My next option is just to apply for a job at EA, so I can fix their stuff...

i have been getting this error lately Error code: 1:86001S:66003S:-891751198O:0B and its giving me * its been fine for ages and now can't connect the the ea servers for battlefield 2042

Same problem.  Any fix???