Windows 11 Network Credential Issue

@AZTURK1

Hi there, I see Windows 11 endpoints failing SMB authentication on the LAN despite resets to network settings, credential recreations and Group Policy tweaks; I’ll trace SMB, NTLM/Digest policies, Credential Manager and local firewall rules during a live remote session and resolve the handshake root cause. - Identify and fix the SMB/SMBv1-v3 policy, Lanman/NTLM settings, and local security policy causing authentication failure - Clean and reconfigure Windows Credential Manager entries, test auth with mapped shares and printer access, and validate via successful ping and file transfer - Create a concise checklist with exact registry/policy changes and steps to replicate across remaining PCs - Risk/quality-control: backup checkpoint + staged deployment and post-fix validation to avoid domain-wide disruption Skills: ✅ SMBv1/SMBv2/SMBv3 ✅ Windows 11 local security policy / Group Policy ✅ Credential Manager troubleshooting / NTLM authentication workflow ✅ Firewall rule auditing / Local Windows Defender Firewall ✅ AD/Workgroup connectivity and network share validation Certificates: ✅ Microsoft® Certified: MCSA | MCSE | MCT ✅ cPanel® & WHM Certified CWSA-2 I’m available for a live remote session; Is this network part of an AD domain or are the Windows 11 PCs in a workgroup, and do you have local admin credentials available for the machines? Best regards,

@mobimubasir

Hello there, I can join you in a live session to diagnose and fix your Windows 11 network authentication issue, tracing SMB, credential handling, firewall rules, and policy settings to restore seamless connectivity without repeated login prompts. I have experience troubleshooting complex Windows networking problems beyond basic fixes, and I’ll walk you through the root cause, apply the solution, and leave you with a clear checklist to replicate across all machines.

@sufyand1

Hello there, I can help diagnose and resolve the authentication issue across your Windows 11 network with a focused, expert approach. Given the troubleshooting you’ve already done, I’ll dive deeper into SMB configuration, credential manager conflicts, firewall rules, and policy-level settings to pinpoint the root cause. I’m comfortable working via live remote session and will walk you through each step clearly while implementing a permanent fix. My goal is to restore seamless file and printer sharing without repeated credential prompts. I’ll also provide a simple checklist so you can replicate the solution across all machines. Ready to get this resolved efficiently.

@mamedoff5

Hello, I'm Elvin Mammadov, a seasoned IT specialist with over 5 years of experience. I hold a CompTIA A+ certification and have a strong background in Windows Server, VMware Virtualization, Linux, and Proxmox. I have successfully completed numerous projects similar to yours and am confident I can deliver the results you need. I'm ready to leverage my skills to help you achieve your goals. Looking forward to collaborating with you!

@ayesha86664

Hi there! You are dealing with Windows 11 machines failing SMB authentication and the real issue is usually a mix of credential caching, SMB signing policies, or network profile mismatch that blocks proper handshake. I recently fixed a similar office setup where shared drives kept prompting wrong credentials, and resolved it by correcting SMB settings, credential manager entries, and local security policy misalignment. I will join your remote session, trace authentication flow step by step, check SMB and firewall rules, then fix the root cause and give you a simple repeatable checklist and ensure stable file sharing across all devices. Check our work: https://www.freelancer.com/u/ayesha86664 Quick question: are these PCs joined to a workgroup or any domain that might be enforcing hidden credential policies? I am ready to start - just say the word. Best Regards, Ayesha

@suhailiust

Hey there, i have a solution for this issue. Lets connect to discuss further!!! We can have a remote session.

@devangjivani

Hello, My name is Devang Jivani, and I have 2+ years of experience in Network Penetration Testing and system/network troubleshooting, especially in Windows environments. Based on your issue, this likely relates to SMB configuration, credential manager conflicts, local security policies, or firewall rules rather than basic network setup. I can join a live remote session, trace the authentication process, and identify exactly where the failure is occurring. I will systematically check SMB settings, stored credentials, network discovery, sharing permissions, and security policies to pinpoint and fix the issue. Along with resolving it, I’ll explain the root cause clearly and provide a simple checklist so you can apply the same fix across all your machines. My goal is to ensure stable, seamless connectivity between your Windows 11 systems without repeated credential prompts. Looking forward to helping you resolve this quickly. Best regards, Devang Jivani

@kaleem2272

Hello, I see that you have already tried the common network fixes and the issue persists at the authentication stage. Since standard credential resets didn't work, I will perform a deeper dive into: SMB Security Policies: Checking NTLMv2 levels and "Insecure guest logons" via Group Policy. Credential Manager Overlap: Clearing conflicting cached tokens that often cause Windows 11 handshake failures. Service Dependencies: Ensuring Function Discovery and Peer Networking services are correctly configured. I am ready for a live remote session via AnyDesk or TeamViewer to troubleshoot this in real-time. After the fix, I will provide a clear checklist so you can replicate the settings on your other machines. Looking forward to helping you get your network back on track.

@khalida019

Experienced IT infrastructure engineer for hybrid on‑prem/cloud, Windows and Linux troubleshooting, hardware maintenance and clear documentation. If you’re looking for someone who can keep a mixed environment running smoothly, I’m Khalid, an IT infrastructure engineer with hands‑on experience in complex enterprise setups. I can track down software glitches before they hurt productivity and take care of the day‑to‑day maintenance of desktops, laptops, printers and your small server room. I work routinely with remote access tools such as AnyDesk, TeamViewer and SSH, so I can intervene quickly and minimise downtime. I’m also used to structured ITSM processes and have experience with ServiceNow for ticket creation, incident handling and tracking. For every task, I provide a short incident report and keep an updated maintenance checklist so you always know what was done and what is planned next. I’m available around 2 hours per day in the evening on weekdays, plus some time during weekends, which fits well with scheduled maintenance windows and non‑urgent issues. If chosen for this project, my focus will be proactive maintenance, clear communication and fast resolution of problems.