# Networking

**URL:** https://community.qnap.com/c/en/networking/8.md

[Latest](https://community.qnap.com/latest.md) · [Categories](https://community.qnap.com/categories.md) · [Tags](https://community.qnap.com/tags.md)

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## [Welcome to the Network Category!](https://community.qnap.com/t/welcome-to-the-network-category/19)

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**Author:** [@system](https://community.qnap.com/u/system)\
**Replies:** 0\
**Last updated:** [July 12, 2024, 9:40am UTC](https://community.qnap.com/t/welcome-to-the-network-category/19 "2024-07-12T09:40:07Z")

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This category is dedicated to all things networking with QNAP. From high-speed connectivity to virtualized IT solutions, explore how QNAP can power your network infrastructure. Topics include: Network Configuration: Le…

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## [Enabling Jumbo Frames (MTU 9000) on Thunderbolt in QuTS?](https://community.qnap.com/t/enabling-jumbo-frames-mtu-9000-on-thunderbolt-in-quts/7510)

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**Author:** [@Farish\_Media](https://community.qnap.com/u/Farish_Media)\
**Replies:** 1\
**Last updated:** [November 10, 2026, 1:31pm UTC](https://community.qnap.com/t/enabling-jumbo-frames-mtu-9000-on-thunderbolt-in-quts/7510 "2026-11-10T13:31:56Z")

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Trying to enable Jumbo Frames (MTU 9000) on Thunderbolt in QuTS hero h5.2.11.3661 I don’t see any options in Network & Virtual Switch for setting the frame size on the Thunderbolt ports. It appears both of my Thunderbo…

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## [QVPN with QBelt Server](https://community.qnap.com/t/qvpn-with-qbelt-server/7465)

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**Author:** [@Captain\_Cow](https://community.qnap.com/u/Captain_Cow)\
**Replies:** 6\
**Last updated:** [November 7, 2026, 10:04am UTC](https://community.qnap.com/t/qvpn-with-qbelt-server/7465 "2026-11-07T10:04:11Z")

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I cant get a remote client using QVPN to connect to my NAS. I have set up QBelt and a VPN connection profile and checked that the account I am using has privileges to use. I am using port 4433 at the NAS end and at the…

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## [dns server cannot resolve host error message](https://community.qnap.com/t/dns-server-cannot-resolve-host-error-message/7431)

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**Author:** [@larrywww](https://community.qnap.com/u/larrywww)\
**Replies:** 51\
**Last updated:** [November 7, 2026, 5:42am UTC](https://community.qnap.com/t/dns-server-cannot-resolve-host-error-message/7431 "2026-11-07T05:42:16Z")

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I don’t know the dns server and default gateway settings. I am a noob please help.

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## [Tailscale for remote connection to the NAS](https://community.qnap.com/t/tailscale-for-remote-connection-to-the-nas/5376)

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**Author:** [@germpsp](https://community.qnap.com/u/germpsp)\
**Replies:** 17\
**Last updated:** [November 3, 2026, 10:40pm UTC](https://community.qnap.com/t/tailscale-for-remote-connection-to-the-nas/5376 "2026-11-03T22:40:11Z")

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Hello. I want to share my recent experience installing Tailscale to connect to my home NAS remotely. I used OpenVPN for a couple of years to avoid using QNAP MyCloud Link. The OpenVPN server was my QNAP NAS, and I confi…

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## [Qumagie Share Link Works First Time and then Fails](https://community.qnap.com/t/qumagie-share-link-works-first-time-and-then-fails/7317)

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**Author:** [@firstdown80](https://community.qnap.com/u/firstdown80)\
**Replies:** 9\
**Last updated:** [October 31, 2026, 5:53am UTC](https://community.qnap.com/t/qumagie-share-link-works-first-time-and-then-fails/7317 "2026-10-31T05:53:04Z")

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I shared a Qumagie album public link, it works a few times and subsequently fails. The link does not have expiration. I get this message. myQNAPcloud is unable to access your QNAP device Troubleshoot Contact the dev…

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## [TVS-h874 not seen on network or with QFinder](https://community.qnap.com/t/tvs-h874-not-seen-on-network-or-with-qfinder/6702)

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**Author:** [@BJB](https://community.qnap.com/u/BJB)\
**Replies:** 27\
**Last updated:** [October 30, 2026, 4:04am UTC](https://community.qnap.com/t/tvs-h874-not-seen-on-network-or-with-qfinder/6702 "2026-10-30T04:04:35Z")

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All my drive lights are green, but noticed today my TVS-h874 cannot be seen by my network and Qfinder also cannot see it. It was working great a few days ago. My backup QNAP NAS is visible on the network and the login …

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## [Help please. QuWAN Express Super Node suddenly stopped connecting on both NAS units (worked until ~2 weeks ago)](https://community.qnap.com/t/help-please-quwan-express-super-node-suddenly-stopped-connecting-on-both-nas-units-worked-until-2-weeks-ago/7295)

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**Author:** [@acc](https://community.qnap.com/u/acc)\
**Replies:** 2\
**Last updated:** [October 28, 2026, 4:47am UTC](https://community.qnap.com/t/help-please-quwan-express-super-node-suddenly-stopped-connecting-on-both-nas-units-worked-until-2-weeks-ago/7295 "2026-10-28T04:47:36Z")

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Hi everyone, I have two QNAP NAS units at different sites, on different ISPs and routers. I’ve been using QuWAN Express via the free Super Node service to run scheduled backups between them. It worked reliably until abo…

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## [How to configure QTS to use MDNS](https://community.qnap.com/t/how-to-configure-qts-to-use-mdns/7237)

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**Author:** [@AllyPally](https://community.qnap.com/u/AllyPally)\
**Replies:** 1\
**Last updated:** [October 22, 2026, 1:21pm UTC](https://community.qnap.com/t/how-to-configure-qts-to-use-mdns/7237 "2026-10-22T13:21:12Z")

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Hi, I’m a Linux user. I use my QNAP NAS with NFS for my Linux PCs and laptops and want to restrict access to NFS for these devices. The long way to do this is allocate static IP addresses and use these in the Shared Fold…

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## [Access remotely nas with windows file browser](https://community.qnap.com/t/access-remotely-nas-with-windows-file-browser/7222)

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**Author:** [@Realb](https://community.qnap.com/u/Realb)\
**Replies:** 2\
**Last updated:** [October 17, 2026, 10:54am UTC](https://community.qnap.com/t/access-remotely-nas-with-windows-file-browser/7222 "2026-10-17T10:54:39Z")

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Hello, I have a QNAP NAS in my office and would like to access it from home by mapping a network drive on my Windows 11 computer. My Nas is model: TS-433 4G and it’ up to date What is the procedure? Thanks

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## [TS-464 / QTS 5.2.10: Apache returns HTTP 200 with an empty body under concurrent requests (reproducible over loopback)](https://community.qnap.com/t/ts-464-qts-5-2-10-apache-returns-http-200-with-an-empty-body-under-concurrent-requests-reproducible-over-loopback/7191)

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**Author:** [@Jacek](https://community.qnap.com/u/Jacek)\
**Replies:** 4\
**Last updated:** [October 14, 2026, 10:04am UTC](https://community.qnap.com/t/ts-464-qts-5-2-10-apache-returns-http-200-with-an-empty-body-under-concurrent-requests-reproducible-over-loopback/7191 "2026-10-14T10:04:08Z")

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Operating system used to access the NAS: Windows 10 Pro (also reproduced with curl on the NAS itself, no client involved) NAS model: TS-464 (x86\_64) Firmware version / build: QTS 5.2.10, build 20260731 (also seen on 5.2.…

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## [QuObjects S3 and Duplicati - Local network?](https://community.qnap.com/t/quobjects-s3-and-duplicati-local-network/7193)

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**Author:** [@TeePee3NAS](https://community.qnap.com/u/TeePee3NAS)\
**Replies:** 4\
**Last updated:** [October 14, 2026, 4:20am UTC](https://community.qnap.com/t/quobjects-s3-and-duplicati-local-network/7193 "2026-10-14T04:20:04Z")

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I am attempting to backup an Ubuntu workstation from Duplicati to a local NAS running QuObjects. I am able to get this working without SSL but not with SSL (HTTPS). Any thoughts? Maybe something to do with the server an…

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## [QBelt and port forwarding](https://community.qnap.com/t/qbelt-and-port-forwarding/7182)

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**Author:** [@Bob](https://community.qnap.com/u/Bob)\
**Replies:** 6\
**Last updated:** [October 13, 2026, 10:50am UTC](https://community.qnap.com/t/qbelt-and-port-forwarding/7182 "2026-10-13T10:50:33Z")

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Hi - I am almost embarassed to ask this, as I have done extensive QVPN stuff in the past with OpenVPN, QBelt and Wireguard, and during that period of time (Covid Era - 2020, 2021, 2022) I was plagued with Deadbolt and QL…

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## [TS-453 network stack stopped, how to recover?](https://community.qnap.com/t/ts-453-network-stack-stopped-how-to-recover/7175)

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**Author:** [@msdfk](https://community.qnap.com/u/msdfk)\
**Replies:** 2\
**Last updated:** [October 13, 2026, 9:55am UTC](https://community.qnap.com/t/ts-453-network-stack-stopped-how-to-recover/7175 "2026-10-13T09:55:12Z")

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Hi, I have TS-453 which decided this morning to “stop working”, i.e. not responding to any of the 2 network interfaces connected to the local network. The system is on the latest published firmware, updated perhaps week …

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## [Tailscale error message](https://community.qnap.com/t/tailscale-error-message/6451)

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**Author:** [@Champs](https://community.qnap.com/u/Champs)\
**Replies:** 8\
**Last updated:** [October 12, 2026, 1:56am UTC](https://community.qnap.com/t/tailscale-error-message/6451 "2026-10-12T01:56:20Z")

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Hi, I have looked at using Tailscale for remote VPN access to me NAS. I have installed Tailscale on the NAS, but when opening, I get “XML syntax error on line 8: attribute name without = in element” every time. I have …

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## [QuFirewall problem after update](https://community.qnap.com/t/qufirewall-problem-after-update/7096)

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**Author:** [@Email](https://community.qnap.com/u/Email)\
**Replies:** 5\
**Last updated:** [October 8, 2026, 8:42pm UTC](https://community.qnap.com/t/qufirewall-problem-after-update/7096 "2026-10-08T20:42:10Z")

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After a recent update to QuFirewall, the app will not retain the selected profile (restricted security) and reverts to the basic protection profile, which makes the NAS inaccessible. Manually restoring the profile to res…

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## [\[Error\] \[QuFirewall\]](https://community.qnap.com/t/error-qufirewall/7098)

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**Author:** [@FvA](https://community.qnap.com/u/FvA)\
**Replies:** 5\
**Last updated:** [October 5, 2026, 9:55am UTC](https://community.qnap.com/t/error-qufirewall/7098 "2026-10-05T09:55:23Z")

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\[Error\] \[QuFirewall\] Message from your QNAP device: what to do? I can no longer log in to decive :frowning:

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## [Performance metrics over SNMP](https://community.qnap.com/t/performance-metrics-over-snmp/7046)

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**Author:** [@assetsdsi](https://community.qnap.com/u/assetsdsi)\
**Replies:** 5\
**Last updated:** [October 2, 2026, 10:09am UTC](https://community.qnap.com/t/performance-metrics-over-snmp/7046 "2026-10-02T10:09:08Z")

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I reached this post looking for information about reading the performance metrics on a qnap qts hero, my version is the current 6.0.2.3591. On the pre hero you could use the OID family .1.3.6.1.4.1.24681.1.4.1.11.5.6.2.…

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## [Enforce 2FA for VPN connections](https://community.qnap.com/t/enforce-2fa-for-vpn-connections/6973)

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**Author:** [@CRU\_Technologies](https://community.qnap.com/u/CRU_Technologies)\
**Replies:** 5\
**Last updated:** [September 23, 2026, 2:49am UTC](https://community.qnap.com/t/enforce-2fa-for-vpn-connections/6973 "2026-09-23T02:49:58Z")

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Hi, We have setup QBELT VPN and it is working fine. We have also enabled 2FA for the VPN user accounts. BUT although the users are prompted for 2FA - most of the time - and sometimes its quite delayed - they are stil…

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## [QVPN Service 3.4.1596](https://community.qnap.com/t/qvpn-service-3-4-1596/6984)

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**Author:** [@nasnoob](https://community.qnap.com/u/nasnoob)\
**Replies:** 3\
**Last updated:** [September 22, 2026, 10:16am UTC](https://community.qnap.com/t/qvpn-service-3-4-1596/6984 "2026-09-22T10:16:09Z")

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Anyone else having issues conencting to their wireguard server? Wondering if its linked to the new QVPN release. How do i rollback to the previous version? Where can i download older .qpkg’s?

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## [Understanding QuFirewall denied events help](https://community.qnap.com/t/understanding-qufirewall-denied-events-help/6982)

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**Author:** [@sir5574](https://community.qnap.com/u/sir5574)\
**Replies:** 1\
**Last updated:** [September 19, 2026, 1:07am UTC](https://community.qnap.com/t/understanding-qufirewall-denied-events-help/6982 "2026-09-19T01:07:29Z")

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Model TS-653D Firmware QTS 5.2.10.3577 QuFirewall Version 2.5.0 (2025/11/10) Container Station Version 3.1.2.1742 (2025/11/26) So I recently looked at the QuFirewall, and noticed I keep getting “denied events”. When…

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## [Looking for documentation for SSO / Enable Azure Single Sign-on](https://community.qnap.com/t/looking-for-documentation-for-sso-enable-azure-single-sign-on/798)

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**Author:** [@itteam](https://community.qnap.com/u/itteam)\
**Replies:** 9\
**Last updated:** [September 17, 2026, 1:37pm UTC](https://community.qnap.com/t/looking-for-documentation-for-sso-enable-azure-single-sign-on/798 "2026-09-17T13:37:35Z")

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The helpcenter QTS manual only covers the 3 options on the other tab under ‘Domain Security’ I need to know if local users can be used simultaneously alongside M365 accounts ? for backups rsync/RRTR, ftp, etc there’s no…

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## [Cannot gain access to Qnap NAS Drive after changing Router](https://community.qnap.com/t/cannot-gain-access-to-qnap-nas-drive-after-changing-router/6970)

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**Author:** [@klcrute](https://community.qnap.com/u/klcrute)\
**Replies:** 12\
**Last updated:** [September 15, 2026, 11:47pm UTC](https://community.qnap.com/t/cannot-gain-access-to-qnap-nas-drive-after-changing-router/6970 "2026-09-15T23:47:09Z")

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I have installed a new Nighthawk router today, the NAS drive is connected and shows up IP address 192.168.0.157 (which is unchanged from the old router, and NAS was working earlier this morning). Qfinder has the NAS ther…

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## [Static IP changing to Dynamic](https://community.qnap.com/t/static-ip-changing-to-dynamic/6895)

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**Author:** [@Ceejuicer](https://community.qnap.com/u/Ceejuicer)\
**Replies:** 7\
**Last updated:** [September 9, 2026, 5:54am UTC](https://community.qnap.com/t/static-ip-changing-to-dynamic/6895 "2026-09-09T05:54:14Z")

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Hello, Here in the UK I have subscribed to a broadband provided for many years. Most recently they advised me of an increase in my monthly subscription. The increase is because my account has always had a static IP, neve…

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## [Remote user can't access NAS?](https://community.qnap.com/t/remote-user-cant-access-nas/6910)

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**Author:** [@Tesagk](https://community.qnap.com/u/Tesagk)\
**Replies:** 3\
**Last updated:** [September 8, 2026, 1:44pm UTC](https://community.qnap.com/t/remote-user-cant-access-nas/6910 "2026-09-08T13:44:49Z")

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Your Operating System you are using to access your NAS. I’m using Windows and the Opera browser User was using Android and Chrome / Firefox NAS model TS-433 Processor: Quad-core ARM Cortex-A55 @ 2.0 GHz Memory: …

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## [Port Labelling in QSS for QSW-M2106PR-2S2T](https://community.qnap.com/t/port-labelling-in-qss-for-qsw-m2106pr-2s2t/6899)

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**Author:** [@pen.lizard.drink](https://community.qnap.com/u/pen.lizard.drink)\
**Replies:** 2\
**Last updated:** [September 7, 2026, 9:35pm UTC](https://community.qnap.com/t/port-labelling-in-qss-for-qsw-m2106pr-2s2t/6899 "2026-09-07T21:35:42Z")

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Wondering if there’s a version of the QSS for my QSW-M2106PR-2S2T switch that allows labelling or naming the ports under Port Management? Ultimately, rather than seeing Port 1 - Port 10, I want to be able to see, in the …

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## [Failed to log in](https://community.qnap.com/t/failed-to-log-in/6762)

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**Author:** [@Ceejuicer](https://community.qnap.com/u/Ceejuicer)\
**Replies:** 8\
**Last updated:** [September 7, 2026, 2:46am UTC](https://community.qnap.com/t/failed-to-log-in/6762 "2026-09-07T02:46:19Z")

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Warning\] \[QuLog Center\] Notification from your device: TS-251B NAS Name: TS-251BSeverity: WarningDate/Time: 2026/08/23 14:24:17App Name: QuLog CenterCategory: Connection StatusMessage: \[QuLog Center\] Failed to log in. U…

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## [Cannot access NAS from my Mac over LAN](https://community.qnap.com/t/cannot-access-nas-from-my-mac-over-lan/6808)

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**Author:** [@Ninecows](https://community.qnap.com/u/Ninecows)\
**Replies:** 9\
**Last updated:** [September 5, 2026, 3:45pm UTC](https://community.qnap.com/t/cannot-access-nas-from-my-mac-over-lan/6808 "2026-09-05T15:45:11Z")

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Hi I am not very experienced in network, so please be nice :slight\_smile: My TS-453A is connected to a 8 port switch which again is connected to my router. I also have a Mac mini. When it is connected to the same swit…

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## [Names of machines in the local domain are not resolved](https://community.qnap.com/t/names-of-machines-in-the-local-domain-are-not-resolved/6802)

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**Author:** [@Steffen](https://community.qnap.com/u/Steffen)\
**Replies:** 3\
**Last updated:** [September 5, 2026, 1:22pm UTC](https://community.qnap.com/t/names-of-machines-in-the-local-domain-are-not-resolved/6802 "2026-09-05T13:22:50Z")

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Hi, my machines are in a local domain “lan”. I have the problem that on my QNAP NAS (QTS 5.2.10.3577) local names are not resolved. If I run for example: nslookup myMachine I get =\> \*\* server can’t find myMachine : N…

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## [QSW-M7230-2X4F24T - Issue with 802.1x](https://community.qnap.com/t/qsw-m7230-2x4f24t-issue-with-802-1x/6841)

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**Author:** [@asbfr](https://community.qnap.com/u/asbfr)\
**Replies:** 3\
**Last updated:** [September 4, 2026, 7:56am UTC](https://community.qnap.com/t/qsw-m7230-2x4f24t-issue-with-802-1x/6841 "2026-09-04T07:56:16Z")

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Hello We are trying this new switch on our main HQ. It works very well but lack a good manual and security function. I just see the last update add 802.1x and ssh console. But it seems a web interface bug. We cannot a…

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