Image won't refresh

[L0ckAndL0ad]

Hello. My PC is acting strange.
I walk inside/around the village and my ingame image won't refresh. It freezes. I can see how my legs moving, but i can't do anything. Everything just stands still. Our villagers saying i'm moving (when i'm clicking left and right). They can see how I move, but i don't. I wait for a while, but nothing happens. I can say something in village/party chat, but I don't see it, and our villagers see it. I was waiting for like 30 minutes once, and nothing changed.
It happens mostly when I'm inside/near our village. No other villager have same issue inside/around our village(it's about ~10 other people), so, I guess, it's only my problem. But it's still there.
Original client and Pacho's acting with the same behavior.

My rig:
Core2Duo E8400 @ 3Ghz, 2Gb ram, Radeon 3870 512Mb
Windows 7 32bit
Every software is up to date, I have good stable DSL connection(if that really matters, cuz everyone except me can see i'm moving/chatting)..

Any suggestions?

[L0ckAndL0ad]

The problem don't want to disappear and just showing it's ugly ass to me again and again. But now i have some crash report i can attach to the case (if it's not irrelevant).

java.lang.RuntimeException: Delayed error in resource gfx/invobjs/small/vapntreyiu (v1), from forking source backed by HTTP res source (https://www.havenandhearth.com/res/)
at haven.Resource.checkerr(Resource.java:1058)
at haven.Resource.compareTo(Resource.java:950)
at haven.Resource.compareTo(Resource.java:39)
at java.util.Arrays.mergeSort(Unknown Source)
at java.util.Arrays.mergeSort(Unknown Source)
at java.util.Arrays.mergeSort(Unknown Source)
at java.util.Arrays.mergeSort(Unknown Source)
at java.util.Arrays.mergeSort(Unknown Source)
at java.util.Arrays.mergeSort(Unknown Source)
at java.util.Arrays.mergeSort(Unknown Source)
at java.util.Arrays.sort(Unknown Source)
at java.util.Collections.sort(Unknown Source)
at haven.Resource.dumplist(Resource.java:1106)
at haven.MainFrame.main2(MainFrame.java:249)
at haven.MainFrame.access$100(MainFrame.java:34)
at haven.MainFrame$6.run(MainFrame.java:278)
at java.lang.Thread.run(Unknown Source)
Caused by: haven.Resource$LoadException: Load error in resource gfx/invobjs/small/vapntreyiu(v1), from forking source backed by HTTP res source (https://www.havenandhearth.com/res/)
at haven.Resource$Loader.handle(Resource.java:401)
at haven.Resource$Loader.run(Resource.java:375)
... 1 more
Caused by: java.net.SocketException: Network is unreachable: connect
at java.net.PlainSocketImpl.socketConnect(Native Method)
at java.net.PlainSocketImpl.doConnect(Unknown Source)
at java.net.PlainSocketImpl.connectToAddress(Unknown Source)
at java.net.PlainSocketImpl.connect(Unknown Source)
at java.net.SocksSocketImpl.connect(Unknown Source)
at java.net.Socket.connect(Unknown Source)
at com.sun.net.ssl.internal.ssl.SSLSocketImpl.connect(Unknown Source)
at com.sun.net.ssl.internal.ssl.BaseSSLSocketImpl.connect(Unknown Source)
at sun.net.NetworkClient.doConnect(Unknown Source)
at sun.net.www.http.HttpClient.openServer(Unknown Source)
at sun.net.www.http.HttpClient.openServer(Unknown Source)
at sun.net.www.http.HttpClient.parseHTTPHeader(Unknown Source)
at sun.net.www.http.HttpClient.parseHTTP(Unknown Source)
at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source)
at sun.net.www.protocol.https.HttpsURLConnectionImpl.getInputStream(Unknown Source)
at haven.Resource$HttpSource.get(Resource.java:330)
at haven.Resource$TeeSource.get(Resource.java:225)
at haven.Resource$Loader.handle(Resource.java:395)
... 2 more

[L0ckAndL0ad]

Okay, I found what's causing the problem. The problem disappears when I use differend ADSL-router (DLink 2640u) instead of my Zyxel P660RT2. I have made a port forwarding for both of them (1870, 1871 ports), but that's probably pointless since H&H (from what i can see in tcpview) uses random ports all the time. There's no other special settings, everything in both routers is set up from default settings. I have problems with ADSL connection on Dlink, so I need to use Zyxel right now (it connects without a problem), but Zyxel gives me such bad isssue with freezes.. Anything can be suggested here?