# GL-X3000 Spitz AX "skb\_tailroom small" and unstable connection **URL:** \ **Category:** Router\ **Created:** [May 7, 2024, 5:06pm UTC](https://forum.gl-inet.com/t/gl-x3000-spitz-ax-skb-tailroom-small-and-unstable-connection/41998 "2024-05-07T17:06:02Z")\ **Posts on this page:** 2\ **Page:** 2
**Author:** ![mdpatel](https://forum-assets.gl-inet.com/user_avatar/forum.gl-inet.com/mdpatel/32/19152_2.png) [@mdpatel](https://forum.gl-inet.com/u/mdpatel)\ **Post date:** [February 5, 2025, 7:13am UTC](https://forum.gl-inet.com/t/gl-x3000-spitz-ax-skb-tailroom-small-and-unstable-connection/41998/22 "2025-02-05T07:13:01Z")
Already use optimal MTU 1400 without any packet loss. and TTL keep blank.. may be speed issue is because of network signal. But why continue show log `skb_tailroom small`? is it related MTU only? latest log: ```auto Wed Feb 5 12:28:17 2025 kern.debug kernel: [82082.777060] skb_tailroom small! Wed Feb 5 12:30:23 2025 kern.debug kernel: [82208.039364] skb_tailroom small! Wed Feb 5 12:30:24 2025 kern.debug kernel: [82209.093123] skb_tailroom small! Wed Feb 5 12:30:24 2025 kern.debug kernel: [82209.480442] skb_tailroom small! Wed Feb 5 12:34:35 2025 kern.debug kernel: [82459.818518] skb_tailroom small! Wed Feb 5 12:36:07 2025 kern.debug kernel: [82552.073114] skb_tailroom small! Wed Feb 5 12:36:08 2025 kern.debug kernel: [82553.448716] skb_tailroom small! Wed Feb 5 12:36:12 2025 kern.debug kernel: [82557.330915] skb_tailroom small! Wed Feb 5 12:37:11 2025 kern.debug kernel: [82616.461442] skb_tailroom small! ``` ---
**Author:** ![bruce](https://forum-assets.gl-inet.com/user_avatar/forum.gl-inet.com/bruce/32/35649_2.png) [@bruce](https://forum.gl-inet.com/u/bruce)\ **Post date:** [October 29, 2025, 11:42am UTC](https://forum.gl-inet.com/t/gl-x3000-spitz-ax-skb-tailroom-small-and-unstable-connection/41998/23 "2025-10-29T11:42:46Z")
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