I have this wierd problem with my realtek rtl8101e ethernet. It keeps on disconnecting randomly with my router.
My computer is connected to D-link router via LAN cable.
this problem does not occur in my windows xp os.
I have to suspend and resume my Debian os (wheezy 7.6 KDE) to get the ethernet connection up everytime it disconnects with my router.
These are my ethernet details
Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8101E/RTL8102E PCI Express Fast Ethernet controller (rev 05)
Subsystem: Realtek Semiconductor Co., Ltd. Device 0123
Flags: bus master, fast devsel, latency 0, IRQ 42
I/O ports at e800 [size=256]
Memory at fdfff000 (64-bit, prefetchable) [size=4K]
Memory at fdff8000 (64-bit, prefetchable) [size=16K]
Capabilities:  Power Management version 3
Capabilities:  MSI: Enable+ Count=1/1 Maskable- 64bit+
Capabilities:  Express Endpoint, MSI 01
Capabilities: [b0] MSI-X: Enable- Count=4 Masked-
Capabilities: [d0] Vital Product Data
Capabilities:  Advanced Error Reporting
Capabilities:  Virtual Channel
Capabilities:  Device Serial Number 09-1b-00-00-36-4c-e0-00
Kernel driver in use: r8101
I have already removed the driver that came with the default debian installation and installed the drivers from realtek website but the problem still persists.