A couple of different issues

[AdamN]

Socket error 110 is Timeout error, it means that it wasn't able to connect or send within a certain time (how long the timeout it was varies/depends on the games), you can try overriding the timeout by increasing the Minimum Timeout setting, but this may not works on all games as it's a general attempt to override it (meanwhile, games that calculate their own timeouts can't be overridden without tampering on the game code, which need to be made specific for certain games just like cheat, and we don't do game specific modifications)

Regarding Virtual Keyboard not working on Steam Deck is a known issue, but not solved yet https://github.com/hrydgard/ppsspp/issues/18222
There seems to be a workaround (based on the post there)

Quote:Well I figured something, it's a issue with Steam, if I launch PPSSPP in desktop mode from applications the keyboard works fine but if I launch it from steam it no longer works.
Small tip, the keyboard doesn't show in desktop mode if PPSSPP is in full screen, switch it to window mode temporarily.

Regarding default name, most games are using the name being set in System setting (where the default is PPSSPP), so you shouldn't leave the name setting empty if it can cause an error.
As i remembered some games doesn't work if another player is already using the same name either (ie. if there are more than 1 player using PPSSPP name)