Tag: networking

Error can’t connect to network PC / sharing (the username or password is incorrect)

Try these one by one:

  • Make sure the username and password is correct in the server PC (you can try checking the username from folders inside C:\Users)
  • Add the credentials manually from credential manager, with format: <targetpcname>\<username> , and then try connecting again

Using scheduler in Mikrotik to enable/disable internet for some clients (firewall)

  1. Input all target clients’ IP addresses under the same address lists in IP > Firewall > Address List
  2. Create 2 new L7 Protocols in IP > Firewall > Layer7 Protocols, for example we block everything except google sites
    – block : ^.*$
    – allow : ^.+(gmail|google|gstatic).*$
  3. Create 4 new firewall rules in IP > Firewall > Filter Rules

Fixing winsock

Cause & Problems —
Sometimes, winsock in windows may get corrupted/damaged and makes your PC disconnected from the network even with the correct internet setting, missing IP in network connections, or even makes you unable to open your browser.

Solutions —
1. Use softwares such as WinSock XP Fix, or
2. Execute these commands one by one in the command prompt as administrator, then restart your PC after each command
— netsh winsock reset catalog
— netsh int ip reset reset.log
— netsh int ip reset logfile.txt
— netsh int ipv4 reset reset.log
— netsh winsock reset

Windows won’t save any network credentials after restart

  • Maybe the username between PC is the same but the password is different, in that case, change the password so that the it matchs each other and requires no authentication
  • Create a new account, and try it on the new account
  • Create a new account with the same username and password between PC
  • Allow anonymous login / blank password / disable password protected sharing
  • Use an auto login app like Network Drive Manager > open the options and set to auto connect until a hundred times > copy its shortcut to the startup folder, or just
  • Reinstall windows