observatie

in Windows mai ai si comanda pathping:

Cod:
Microsoft Windows [Version 6.1.7600]
Copyright (c) 2009 Microsoft Corporation.  All rights reserved.

C:\Users\gupi>pathping google.com

Tracing route to google.com [74.125.232.226]
over a maximum of 30 hops:
  0  xxxxxxxx.xxx.xxxxxxxxx.xxx [192.168.1.200]
  1  192.168.1.220
  2  81.196.180.1
  3  qr06.timisoara.rdsnet.ro [213.154.121.197]
  4  213-154-121-161.rdsnet.ro [213.154.121.161]
  5  xr01.budapesta.rdsnet.ro [213.154.128.21]
  6  xr01.budapesta.rdsnet.ro [213.154.128.21]
  7  213-154-130-234.rdsnet.ro [213.154.130.234]
  8  209.85.243.119
  9  216.239.46.50
 10  bud01s09-in-f2.1e100.net [74.125.232.226]

Computing statistics for 250 seconds...
            Source to Here   This Node/Link
Hop  RTT    Lost/Sent = Pct  Lost/Sent = Pct  Address
  0                                           xxxxxxxxxxxx.xxxxxxx.xxxxxxxx [192.168.1.200]
                                0/ 100 =  0%   |
  1    7ms     0/ 100 =  0%     0/ 100 =  0%  192.168.1.220
                                0/ 100 =  0%   |
  2    5ms     0/ 100 =  0%     0/ 100 =  0%  81.196.180.1
                                0/ 100 =  0%   |
  3   12ms     0/ 100 =  0%     0/ 100 =  0%  qr06.timisoara.rdsnet.ro [213.154.121.197]
                                0/ 100 =  0%   |
  4    6ms     0/ 100 =  0%     0/ 100 =  0%  213-154-121-161.rdsnet.ro [213.154.121.161]
                                0/ 100 =  0%   |
  5   16ms     0/ 100 =  0%     0/ 100 =  0%  xr01.budapesta.rdsnet.ro [213.154.128.21]
                                0/ 100 =  0%   |
  6   13ms     0/ 100 =  0%     0/ 100 =  0%  xr01.budapesta.rdsnet.ro [213.154.128.21]
                                0/ 100 =  0%   |
  7  ---     100/ 100 =100%   100/ 100 =100%  213-154-130-234.rdsnet.ro [213.154.130.234]
                                0/ 100 =  0%   |
  8   16ms     0/ 100 =  0%     0/ 100 =  0%  209.85.243.119
                                0/ 100 =  0%   |
  9  ---     100/ 100 =100%   100/ 100 =100%  216.239.46.50
                                0/ 100 =  0%   |
 10   11ms     0/ 100 =  0%     0/ 100 =  0%  bud01s09-in-f2.1e100.net [74.125.232.226]

Trace complete.
C:\Users\gupi>
... si la final ai o statistica destul de buna.

Sugestia mea este sa incerci -inainte de a reclama vehement problemele- sa elimini toate posibilele probleme interne:
- testeaza conectivitatea si cu alt router
- testeaza conectivitatea si cu alt calculator (eventual cu alta distributie)
Noteaza configuratiile folosite si rezultatele testelor.
In felul asta vei avea argumente mult mai pertinente.