the lord works in mysterious ways.
sorry i couldnt resist. not heard of this before, i did wonder if it was a setting in your router that has sundays off on your pc, do you have a router manager that shows the different devices that are connected to it.
click on your computer and see if there is a setting for the usage
System Manufacturer/Model Number Hewlett packard/p6512uk OS Microsoft Windows 7 Home Premium 64-bit 7600 CPU IIx4 amd athelon 635 processor Motherboard FOXCONN 2AA9 Memory 2x2gb Graphics Card ati radeon HD 5450 Sound Card (1) Realtek High Definition Audio (2) AMD High Definition Monitor(s) Displays samsung lcd tv 32" Screen Resolution 1360x 768
Keyboard wireless hp Mouse wireless Hp,optical PSU ? Cooling air! Hard Drives (1) WDC WD10 01FAES-60Z2A0 SATA Disk Device (2) Maxtor OneTouch USB Device (3) ST310003 33AS USB Device (4) WD My Book 1111 USB Device Internet Speed 1.10mb/s Antivirus MSE Browser Firefox
System Manufacturer/Model Number Apple 17" iMac MA199LL (Early 2006) OS Windows 7 Home Premium 32-bit (upgrade) CPU 1.83GHz Intel Core Duo Memory 2GB 667MHz DDR2 SDRAM (PC2-5300) (upgrade) Graphics Card ATI Radeon X1600 with 128MB GDDR3 memory Monitor(s) Displays 17-inch TFT active-matrix LCD, millions of colors Screen Resolution 1440 x 900
Keyboard Microsoft Wired Keyboard 600 Mouse Microsoft Basic Optical Mouse v2.0 Hard Drives Hitachi 320GB HDT721032SLA360 7200RPM SATA II (upgrade) Internet Speed 4 Mbps Antivirus Microsoft Security Essentials Browser Google Chrome Other Info WEI:
Base Score: 3.9 Processor: 4.4 Memory 4.7
Graphics: 3.9 Gaming Graphics: 4.1 Primary HD: 5.9