diff --git a/src/pc/djui/djui_inputbox.c b/src/pc/djui/djui_inputbox.c
index 9006da3c..76a62a18 100644
--- a/src/pc/djui/djui_inputbox.c
+++ b/src/pc/djui/djui_inputbox.c
@@ -15,6 +15,20 @@ static u8 sHeldShift = 0;
 static u8 sHeldControl = 0;
 static u8 sCursorBlink = 0;
 
+static void djui_inputbox_on_change(struct DjuiInputbox* inputbox) {
+    struct DjuiBase* base = &inputbox->base;
+    if (base != NULL && base->interactable != NULL && base->interactable->on_value_change != NULL) {
+        base->interactable->on_value_change(base);
+    }
+}
+
+void djui_inputbox_set_text_color(struct DjuiInputbox* inputbox, u8 r, u8 g, u8 b, u8 a) {
+    inputbox->textColor.r = r;
+    inputbox->textColor.g = g;
+    inputbox->textColor.b = b;
+    inputbox->textColor.a = a;
+}
+
 void djui_inputbox_set_text(struct DjuiInputbox* inputbox, char* text) {
     snprintf(inputbox->buffer, inputbox->bufferSize, "%s", text);
 }
@@ -130,6 +144,7 @@ static void djui_inputbox_delete_selection(struct DjuiInputbox *inputbox) {
         sel[0] = s1;
         sel[1] = s1;
     }
+    djui_inputbox_on_change(inputbox);
 }
 
 static bool djui_inputbox_on_key_down(struct DjuiBase *base, int scancode) {
@@ -316,6 +331,7 @@ static void djui_inputbox_on_text_input(struct DjuiBase *base, char* text) {
     inputbox->selection[0] += strlen(text);
     inputbox->selection[1] = inputbox->selection[0];
     sCursorBlink = 0;
+    djui_inputbox_on_change(inputbox);
 }
 
 static void djui_inputbox_render_char(struct DjuiInputbox* inputbox, char c, f32* drawX, f32* additionalShift) {
@@ -447,7 +463,7 @@ static void djui_inputbox_render(struct DjuiBase* base) {
     gSPDisplayList(gDisplayListHead++, font->textBeginDisplayList);
 
     // set color
-    gDPSetEnvColor(gDisplayListHead++, 0, 0, 0, 255);
+    gDPSetEnvColor(gDisplayListHead++, inputbox->textColor.r, inputbox->textColor.g, inputbox->textColor.b, inputbox->textColor.a);
 
     // make selection well formed
     u16 selection[2] = { 0 };
@@ -468,7 +484,7 @@ static void djui_inputbox_render(struct DjuiBase* base) {
             if (insideSelection && !wasInsideSelection) {
                 gDPSetEnvColor(gDisplayListHead++, 255, 255, 255, 255);
             } else if (!insideSelection && wasInsideSelection) {
-                gDPSetEnvColor(gDisplayListHead++, 0, 0, 0, 255);
+                gDPSetEnvColor(gDisplayListHead++, inputbox->textColor.r, inputbox->textColor.g, inputbox->textColor.b, inputbox->textColor.a);
             }
             wasInsideSelection = insideSelection;
         }
@@ -498,6 +514,7 @@ struct DjuiInputbox* djui_inputbox_create(struct DjuiBase* parent, u16 bufferSiz
     djui_base_init(parent, base, djui_inputbox_render, djui_inputbox_destroy);
     djui_base_set_size(base, 200, 32);
     djui_base_set_border_width(base, 2);
+    djui_inputbox_set_text_color(inputbox, 0, 0, 0, 255);
     djui_interactable_create(base);
     djui_interactable_hook_hover(base, djui_inputbox_on_hover, djui_inputbox_on_hover_end);
     djui_interactable_hook_cursor_down(base, djui_inputbox_on_cursor_down_begin, djui_inputbox_on_cursor_down, djui_inputbox_on_cursor_down_end);
diff --git a/src/pc/djui/djui_inputbox.h b/src/pc/djui/djui_inputbox.h
index c85b05d8..3556fbc7 100644
--- a/src/pc/djui/djui_inputbox.h
+++ b/src/pc/djui/djui_inputbox.h
@@ -8,9 +8,11 @@ struct DjuiInputbox {
     u16 bufferSize;
     u16 selection[2];
     f32 viewX;
+    struct DjuiColor textColor;
     void (*on_enter_press)(void);
 };
 
+void djui_inputbox_set_text_color(struct DjuiInputbox* inputbox, u8 r, u8 g, u8 b, u8 a);
 void djui_inputbox_set_text(struct DjuiInputbox* inputbox, char* text);
 void djui_inputbox_select_all(struct DjuiInputbox* inputbox);
 void djui_inputbox_hook_enter_press(struct DjuiInputbox* inputbox, void (*on_enter_press)(void));
diff --git a/src/pc/djui/djui_panel_join.c b/src/pc/djui/djui_panel_join.c
index 3c45adeb..1dbc8f1d 100644
--- a/src/pc/djui/djui_panel_join.c
+++ b/src/pc/djui/djui_panel_join.c
@@ -1,3 +1,4 @@
+#include <stdio.h>
 #include "djui.h"
 #include "src/pc/network/network.h"
 #include "src/pc/utils/misc.h"
@@ -15,7 +16,132 @@ static char* sJoiningDirect = "\
 Enter \\#d0d0ff\\direct connection\\#c8c8c8\\ IP and port:\
 ";
 
+static struct DjuiInputbox* sInputboxIp = NULL;
+
+static bool djui_panel_join_ip_parse_numbers(char** msg) {
+    int num = 0;
+    for (int i = 0; i < 3; i++) {
+        char c = **msg;
+        if (c >= '0' && c <= '9') {
+            // is number
+            num *= 10;
+            num += (c - '0');
+            *msg = *msg + 1;
+        } else if (i == 0) {
+            return false;
+        } else {
+            break;
+        }
+    }
+
+    return num >= 0 && num <= 127;
+}
+
+static bool djui_panel_join_ip_parse_period(char** msg) {
+    char c = **msg;
+    bool isPeriod = (c == '.');
+    if (isPeriod) { *msg = *msg + 1; }
+    return isPeriod;
+}
+
+static bool djui_panel_join_ip_parse_spacer(char** msg) {
+    char c = **msg;
+    bool isSpacer = (c == ':' || c == ' ');
+    if (isSpacer) { *msg = *msg + 1; }
+    return isSpacer;
+}
+
+static bool djui_panel_join_ip_parse_port(char** msg) {
+    int num = 0;
+    for (int i = 0; i < 5; i++) {
+        char c = **msg;
+        if (c >= '0' && c <= '9') {
+            // is number
+            num *= 10;
+            num += (c - '0');
+            *msg = *msg + 1;
+        } else if (i == 0) {
+            return false;
+        } else {
+            break;
+        }
+    }
+
+    return num >= 1 && num <= 65535;
+}
+
+static bool djui_panel_join_ip_valid(char* buffer) {
+    char** msg = &buffer;
+    if (!djui_panel_join_ip_parse_numbers(msg)) { return false; }
+    if (!djui_panel_join_ip_parse_period(msg))  { return false; }
+    if (!djui_panel_join_ip_parse_numbers(msg)) { return false; }
+    if (!djui_panel_join_ip_parse_period(msg))  { return false; }
+    if (!djui_panel_join_ip_parse_numbers(msg)) { return false; }
+    if (!djui_panel_join_ip_parse_period(msg))  { return false; }
+    if (!djui_panel_join_ip_parse_numbers(msg)) { return false; }
+    if (djui_panel_join_ip_parse_spacer(msg)) {
+        if (!djui_panel_join_ip_parse_port(msg)) { return false; }
+    }
+
+    return (**msg == '\0');
+}
+
+static void djui_panel_join_ip_text_change(struct DjuiBase* caller) {
+    struct DjuiInputbox* inputbox1 = (struct DjuiInputbox*)caller;
+    if (djui_panel_join_ip_valid(inputbox1->buffer)) {
+        djui_inputbox_set_text_color(inputbox1, 0, 0, 0, 255);
+    } else {
+        djui_inputbox_set_text_color(inputbox1, 255, 0, 0, 255);
+    }
+}
+
+static void djui_panel_join_ip_text_set_new(void) {
+    char buffer[256] = { 0 };
+    snprintf(buffer, 256, "%s", sInputboxIp->buffer);
+
+    bool afterSpacer = false;
+    int port = 0;
+    for (int i = 0; i < 256; i++) {
+        if (buffer[i] == ' ' || buffer[i] == ':') {
+            buffer[i] = '\0';
+            afterSpacer = true;
+        } else if (buffer[i] == '\0') {
+            break;
+        } else if (afterSpacer && buffer[i] >= '0' && buffer[i] <= '9') {
+            port *= 10;
+            port += buffer[i] - '0';
+        }
+    }
+
+    snprintf(configJoinIp, MAX_CONFIG_STRING, "%s", buffer);
+    if (port >= 1 && port <= 65535) {
+        configJoinPort = port;
+    } else {
+        configJoinPort = DEFAULT_PORT;
+    }
+}
+
+static void djui_panel_join_ip_text_set(struct DjuiInputbox* inputbox1) {
+    char buffer[256] = { 0 };
+    if (strlen(configJoinIp) > 0 && configJoinPort != DEFAULT_PORT) {
+        snprintf(buffer, 256, "%s:%d", configJoinIp, configJoinPort);
+    } else if (strlen(configJoinIp) > 0) {
+        snprintf(buffer, 256, "%s", configJoinIp);
+    } else {
+        snprintf(buffer, 256, "127.0.0.1");
+    }
+
+    djui_inputbox_set_text(inputbox1, buffer);
+    djui_inputbox_select_all(inputbox1);
+}
+
 void djui_panel_join_do_join(struct DjuiBase* caller) {
+    if (!djui_panel_join_ip_valid(sInputboxIp->buffer)) {
+        djui_interactable_set_input_focus(&sInputboxIp->base);
+        djui_inputbox_select_all(sInputboxIp);
+        return;
+    }
+    djui_panel_join_ip_text_set_new();
     network_set_system(NS_SOCKET);
     network_init(NT_CLIENT);
     djui_panel_join_message_create(caller);
@@ -57,8 +183,9 @@ void djui_panel_join_create(struct DjuiBase* caller) {
         struct DjuiInputbox* inputbox1 = djui_inputbox_create(&body->base, 256);
         djui_base_set_size_type(&inputbox1->base, DJUI_SVT_RELATIVE, DJUI_SVT_ABSOLUTE);
         djui_base_set_size(&inputbox1->base, 1.0f, 32.0f);
-        djui_inputbox_set_text(inputbox1, configJoinIp);
-        djui_inputbox_select_all(inputbox1);
+        djui_interactable_hook_value_change(&inputbox1->base, djui_panel_join_ip_text_change);
+        sInputboxIp = inputbox1;
+        djui_panel_join_ip_text_set(inputbox1);
 
         struct DjuiRect* rect2 = djui_rect_create(&body->base);
         djui_base_set_size_type(&rect2->base, DJUI_SVT_RELATIVE, DJUI_SVT_ABSOLUTE);