We are aware of some connectivity issues which have recently been affecting the following realms:

Balnazzar
Bloodfeather
Darksorrow
Defias Brotherhood
Earthen Ring
Frostwhisper
Genjuros
Haomarush
Hellscream
Laughing Skull
Lightning's Blade
Magtheridon
Neptulon
Nordrassil
Quel'Thalas
Ragnaros
Ravencrest
Runetotem
Shadowmoon
Shadowsong
Shattered Hand
Silvermoon
Skullcrusher
Spinebreaker
Stormrage
Stormreaver
Stormscale
Sylvanas
Terenas
The Maelstrom
The Venture Co
Thunderhorn
Turalyon
Twisting Nether
Vashj

Rest assured that we are investigating this matter further and are working to resolve any outstanding issues as swiftly as possible.

We thank you for your patience and understanding during this time.
Blizzard Europe