Cant connect anymore

[chocobo_god]

hello, i was wondering if anyone could help me with this problem, i had not played online with my ps2 in a long time, so i decided i would play socom online for a while. I connected and everything, i created a new account as my old one was gone, I was in the lobby and then i choose a game room, everything was normal but then, "You have experienced a problem" or something like that, i tought it was the room so i choose another one, the same problem, and every room i would get the same message, i though it could be my connection, so i try with thps4 and i can play online normaly.
Anyone knows what could be causing this?, i just unplug the cable from my computer and plug it into the ps2, i didnt have problems some years ago, i also tried MGS3 and it gives a error: " Cant find DNS server", i would really appreciate some help as i had previously played socom without any problems (by the way these are originals) thanks in advance.

[Mesut]

you have a Firewall open see look in the info when you are in the lobby look for the Ports for SOCOM 1 the open thos ports becuse you firewall have closed al ports

[chocobo_god]

hmm no i really dont have any firewall running, i dont connect via a router or anything, just unplug the cable from the pc and plug it into the ps2, anyone has another suggestion?

[anigamer]

Try reconfiguring your network settings. Try setting it to automatic.

[chocobo_god]

i dont think that will be possible as i need an specific ip for my network to work, im connecting through an ethernet (at least that's what my isp calls it), i called them and they told me it was not possible unless i got a public ip, wich costs more money and im not getting >_<, thanks for replying anyways, but the problem is due to my isp and i dont think i can fix it.

[Phreaker47]

i dont think that will be possible as i need an specific ip for my network to work, im connecting through an ethernet (at least that's what my isp calls it), i called them and they told me it was not possible unless i got a public ip, wich costs more money and im not getting >_<, thanks for replying anyways, but the problem is due to my isp and i dont think i can fix it.

Sounds like your ISP uses private NATing, which basically means they're cheap and sharing single public IPs with multiple customers. Is the static IP they give you something like 172.x.x.x? That's usually how those types of setups are. It's strange though that it used to work for you. Maybe they changed something on their end between the last time you played and now. But with the private NAT type setup, the ISP can have their own firewalls that block certain ports (such as DNAS authentication ports), and good luck getting them to open them for you. You might want to see if there are any other ISPs available to switch to that can give you your own public IP so you'll have control over this stuff. And there's a good chance you wouldn't pay any more than you are now... of course your current ISP won't tell you that