I am losing connection to Battlenet, battle.net, and therefore all games within (Overwatch, WoW, Hearthstone etc) several times per hour. During this time connection to the internet is not affected. It is only battlenet being dropped and nothing else. Connections to everything else on my computer (Steam, IRC, anything) remains unbroken. I have contacted Blizzard and they are saying that it must be an ISP problem. It has been happening for at least a week if I recall correctly, and is making the games unplayable. I have tried resetting the router and have done a clean install of windows to no avail. My latency is also fine... the connection simply drops.
I am using HG633 modem, v1.21 firmware. Ethernet connection.
Tracing route to battle.net [24.105.29.30]
over a maximum of 30 hops:
1 <1 ms <1 ms <1 ms 192.168.1.1
2 8 ms 8 ms 5 ms 79-68-0-1.dynamic.dsl.as9105.com [79.68.0.1]
3 5 ms 5 ms 5 ms host-78-151-230-145.as13285.net [78.151.230.145]
4 5 ms 5 ms 5 ms host-78-151-230-146.as13285.net [78.151.230.146]
5 5 ms 5 ms 5 ms host-78-144-8-244.as13285.net [78.144.8.244]
6 8 ms 8 ms 9 ms host-78-144-11-47.as13285.net [78.144.11.47]
7 * * * Request timed out.
8 eqix-dc2.blizzard.com [206.126.237.174] reports: Destination net unreachable.
Trace complete.