80048820 is usually something about your system clock.
Check that your system clock is correct. Change it to the correct
timezone also. Singapore's time is GMT + 8.
If this doesn't work, it's just MS. Some problems with their
DLLs.
Do each of the following line by line. When you receive a prompt
about it being successful, then move on to the next line. If it
isn't successful, don't move on. Post back.
Go to Start > Run and type in:
REGSVR32 softpub.dll
REGSVR32 wintrust.dll
REGSVR32 initpki.dll
REGSVR32 Rsaenh.dll
REGSVR32 Mssip32.dll
REGSVR32 Cryptdlg.dll
REGSVR32 Dssenh.dll
REGSVR32 Gpkcsp.dll
REGSVR32 Slbcsp.dll
REGSVR32 Sccbase.dll
For Netgear router users, try this:
1. Enter IP address 192.168.1.1 on the address bar.
2. Enter your user name and password that your ISP has
provided.
3. Enter the administrator username and password.
4. GOTO advance menu (left hand side of screen)
5. GOTO WAN set-up
6. GOTO MTU size, and change to 1400
7. Apply, OK.