Problems with connection (R0) lag

[ces]

Not a Sky user, but having severe connection issues since last night. Here are some curious results after a couple of tests:
- I get the errors 10105 and 9000 whenever I get on my main character, on Lamia. My TP won't even fill up to 1000 before I get one of those. Playing is impossible.
- I can play with no connection issues on any of my other characters on the same server.
- I can play with no connection issues on any character on other servers, despite being on the same datacenter (Primal) or on others.
- My wife plays on the same server, using the same connection (alas, we're a few feet apart), and have no connection issues at all.
- I can play all other online games (WOW, SWTOR, TERA) with no lag or DC at all.
- My results on speedtest.net and other connection testing sites are all normal.

Anyone else finding the same results?

Two identical PCs here - same connection, probably the same cabling to the router since we'd have bought that at the same time from the same shop too, same ISP and everything - last night both getting the r0 spikes like we've been getting all week - but I was getting various disconnections and my husband wasn't. Only difference being kitty V falafell which I doubt has an impact upon connection status.

Can cope with a night of a few disconnects - but the eyewatering lag spikes and catch ups are grim!

[Ganfal]

Two identical PCs here - same connection, probably the same cabling to the router since we'd have bought that at the same time from the same shop too, same ISP and everything - last night both getting the r0 spikes like we've been getting all week - but I was getting various disconnections and my husband wasn't. Only difference being kitty V falafell which I doubt has an impact upon connection status.

Can cope with a night of a few disconnects - but the eyewatering lag spikes and catch ups are grim!

Some more information on my issue:
- The problem persists if I log on another PC. I tried on other 3 PCs and keeps happening on this one character.
- My wife logged on my PC and played just fine with any of her characters.
- Last night I started a new character on the Balmung server. Played for over 4 hours and didn't have any issue. Then I got back to Lamia, on my main, and had the same r0 problem. I ended being killed near Little Ala Mingo and, whenever I clicked to return to the crystal, I got either the 10105 or the 90000 error. Got back to the alt and kept playing.