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I'm unsure the best place to post this for the most potential of suggestions, but I'll try here first. I could post this in Networking, but I'm pretty certain my problem is related to Win8 or a driver. Ever since I built this machine (Ultimate Rig) back in April or whatever, I've had an issue of all network connections either reconnecting or dropping to Limited Connectivity for 5 seconds to a minute before reconnecting. When this happens, I cannot ping the default gateway. I've had this same issue across three different network adapters, wired and wireless, multiple times a day. When it drops, if I disable the card and re-enable, it connects again immediately. Anyone seen this before?

Troubleshooting I've done:
1. updated drivers
2. set static IPs
3. disabled IPV6
4. shut off power save features on the network cards
5. connected to different routers, both wired and wireless
6. another desktop and laptop do not lose connectivity when this box does

Onboard NIC - Intel 82579v (Asus Rampage IV Gene x79)
Wireless - 2x Rosewill RNX-N150HG
 
Liquid i5
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Budget BOINCer
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Intel i7 3930k Asus Rampage IV Gene Micro ATX LGA2011 Diamond Radeon HD 7970 Diamond Radeon HD 7970 
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G.Skill Ripjaws X Series 16GB (4 x 4GB) DDR3-1866 Samsung 840 Pro Series 256GB Heatkiller Waterblocks! Windows 8 Pro 
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Seasonic X-850 Mountain Mods H2gO, black wrinkle, Left H Windo... 
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Intel i5 2500k @ 4.5ghz 1.428v Gigabyte GA-P67A-UD4-B3 EVGA 570 SC SLI@ 900/2000 1.1v G-Skill Ripjaws 16gb 
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Crucial C300 128gb Samsung F4 2TBx4 Raid5 LG Bluray Combo GPU - HK GPUx3 
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CPU - HK Rev 3.0 360+120 Rads, Gentle Typhoon AP-15s Win7 Pro x64 Samsung SyncMaster XL2370 
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Corsair HX750w Cooler Master HAF X Logitech G9 Razer Barracuda AC-1 
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Phenom II x4 945 MSI 790FX-GD70 3x HD 5870 G-Skill Ripjaws 2x2gb Blue 
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Seagate 320gb CPU - XSPC Rasa GPUs - XSPC 5870 & MCW82 RS240 & EX240 
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XP Pro Seasonic Platinum 860 Fractal Arc Midi 
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Liquid i5
(18 items)
 
Budget BOINCer
(11 items)
 
CPUMotherboardGraphicsGraphics
Intel i7 3930k Asus Rampage IV Gene Micro ATX LGA2011 Diamond Radeon HD 7970 Diamond Radeon HD 7970 
RAMHard DriveCoolingOS
G.Skill Ripjaws X Series 16GB (4 x 4GB) DDR3-1866 Samsung 840 Pro Series 256GB Heatkiller Waterblocks! Windows 8 Pro 
PowerCase
Seasonic X-850 Mountain Mods H2gO, black wrinkle, Left H Windo... 
CPUMotherboardGraphicsRAM
Intel i5 2500k @ 4.5ghz 1.428v Gigabyte GA-P67A-UD4-B3 EVGA 570 SC SLI@ 900/2000 1.1v G-Skill Ripjaws 16gb 
Hard DriveHard DriveOptical DriveCooling
Crucial C300 128gb Samsung F4 2TBx4 Raid5 LG Bluray Combo GPU - HK GPUx3 
CoolingCoolingOSMonitor
CPU - HK Rev 3.0 360+120 Rads, Gentle Typhoon AP-15s Win7 Pro x64 Samsung SyncMaster XL2370 
PowerCaseMouseAudio
Corsair HX750w Cooler Master HAF X Logitech G9 Razer Barracuda AC-1 
CPUMotherboardGraphicsRAM
Phenom II x4 945 MSI 790FX-GD70 3x HD 5870 G-Skill Ripjaws 2x2gb Blue 
Hard DriveCoolingCoolingCooling
Seagate 320gb CPU - XSPC Rasa GPUs - XSPC 5870 & MCW82 RS240 & EX240 
OSPowerCase
XP Pro Seasonic Platinum 860 Fractal Arc Midi 
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